Merge branch 'main' into fix/3499

* fix: pipelines saving failure on first try

* feat: add integration tests

* test: making change in integration tests

---------

Co-authored-by: Nityananda Gohain <nityanandagohain@gmail.com>

.github/workflows/integrationci.yaml

@@ -45,6 +45,7 @@ jobs:
           - querier
           - ttl
           - preference
+          - logspipelines
         sqlstore-provider:
           - postgres
           - sqlite

conf/example.yaml

@@ -278,3 +278,13 @@ tokenizer:
     token:
       # The maximum number of tokens a user can have. This limits the number of concurrent sessions a user can have.
       max_per_user: 5
+
+##################### Flagger #####################
+flagger:
+  # Config are the overrides for the feature flags which come directly from the config file.
+  config:
+    boolean:
+    string:
+    float:
+    integer:
+    object:

docs/api/openapi.yml

@@ -1726,6 +1726,51 @@ paths:
       summary: Update user preference
       tags:
       - preferences
+  /api/v2/features:
+    get:
+      deprecated: false
+      description: This endpoint returns the supported features and their details
+      operationId: GetFeatures
+      responses:
+        "200":
+          content:
+            application/json:
+              schema:
+                properties:
+                  data:
+                    items:
+                      $ref: '#/components/schemas/FeaturetypesGettableFeature'
+                    type: array
+                  status:
+                    type: string
+                type: object
+          description: OK
+        "401":
+          content:
+            application/json:
+              schema:
+                $ref: '#/components/schemas/RenderErrorResponse'
+          description: Unauthorized
+        "403":
+          content:
+            application/json:
+              schema:
+                $ref: '#/components/schemas/RenderErrorResponse'
+          description: Forbidden
+        "500":
+          content:
+            application/json:
+              schema:
+                $ref: '#/components/schemas/RenderErrorResponse'
+          description: Internal Server Error
+      security:
+      - api_key:
+        - VIEWER
+      - tokenizer:
+        - VIEWER
+      summary: Get features
+      tags:
+      - features
   /api/v2/orgs/me:
     get:
       deprecated: false
@@ -2173,6 +2218,24 @@ components:
         message:
           type: string
       type: object
+    FeaturetypesGettableFeature:
+      properties:
+        defaultVariant:
+          type: string
+        description:
+          type: string
+        kind:
+          type: string
+        name:
+          type: string
+        resolvedValue: {}
+        stage:
+          type: string
+        variants:
+          additionalProperties: {}
+          nullable: true
+          type: object
+      type: object
     PreferencetypesPreference:
       properties:
         allowedScopes:

frontend/src/api/metricsExplorer/v2/getMetricMetadata.ts

@@ -0,0 +1,29 @@
+import { ApiV2Instance as axios } from 'api';
+import { ErrorResponseHandlerV2 } from 'api/ErrorResponseHandlerV2';
+import { AxiosError } from 'axios';
+import { ErrorResponseV2, ErrorV2Resp, SuccessResponseV2 } from 'types/api';
+import { MetricMetadataResponse } from 'types/api/metricsExplorer/v2/getMetricMetadata';
+
+export const getMetricMetadata = async (
+	metricName: string,
+	signal?: AbortSignal,
+	headers?: Record<string, string>,
+): Promise<SuccessResponseV2<MetricMetadataResponse> | ErrorResponseV2> => {
+	try {
+		const encodedMetricName = encodeURIComponent(metricName);
+		const response = await axios.get(
+			`/metrics/metadata?metricName=${encodedMetricName}`,
+			{
+				signal,
+				headers,
+			},
+		);
+
+		return {
+			httpStatusCode: response.status,
+			data: response.data,
+		};
+	} catch (error) {
+		return ErrorResponseHandlerV2(error as AxiosError<ErrorV2Resp>);
+	}
+};

frontend/src/components/QueryBuilderV2/QueryBuilderV2.styles.scss

@@ -560,6 +560,10 @@
 					border: 1px solid var(--bg-vanilla-300) !important;
 					background: var(--bg-vanilla-100) !important;
 					box-shadow: 0px 0px 8px 0px rgba(0, 0, 0, 0.1) !important;
+
+					.ant-select-selection-item {
+						color: var(--text-ink-400);
+					}
 				}
 			}
 		}
@@ -569,6 +573,10 @@
 				border: 1px solid var(--bg-vanilla-300) !important;
 				background: var(--bg-vanilla-100) !important;
 				box-shadow: 0px 0px 8px 0px rgba(0, 0, 0, 0.1) !important;
+
+				.ant-select-selection-item {
+					color: var(--text-ink-400);
+				}
 			}
 
 			.ant-select-arrow {

frontend/src/components/QueryBuilderV2/QueryV2/MerticsAggregateSection/MetricsAggregateSection.styles.scss

@@ -169,6 +169,10 @@
 					.ant-select-selector {
 						border: 1px solid var(--bg-vanilla-300) !important;
 						background: var(--bg-vanilla-100) !important;
+
+						.ant-select-selection-item {
+							color: var(--text-ink-400);
+						}
 					}
 				}
 			}

frontend/src/components/QueryBuilderV2/QueryV2/QueryAddOns/QueryAddOns.tsx

@@ -32,6 +32,7 @@ const ADD_ONS_KEYS = {
 	ORDER_BY: 'order_by',
 	LIMIT: 'limit',
 	LEGEND_FORMAT: 'legend_format',
+	REDUCE_TO: 'reduce_to',
 };
 
 const ADD_ONS_KEYS_TO_QUERY_PATH = {
@@ -40,13 +41,14 @@ const ADD_ONS_KEYS_TO_QUERY_PATH = {
 	[ADD_ONS_KEYS.ORDER_BY]: 'orderBy',
 	[ADD_ONS_KEYS.LIMIT]: 'limit',
 	[ADD_ONS_KEYS.LEGEND_FORMAT]: 'legend',
+	[ADD_ONS_KEYS.REDUCE_TO]: 'reduceTo',
 };
 
 const ADD_ONS = [
 	{
 		icon: <BarChart2 size={14} />,
 		label: 'Group By',
-		key: 'group_by',
+		key: ADD_ONS_KEYS.GROUP_BY,
 		description:
 			'Break down data by attributes like service name, endpoint, status code, or region. Essential for spotting patterns and comparing performance across different segments.',
 		docLink: 'https://signoz.io/docs/userguide/query-builder-v5/#grouping',
@@ -54,7 +56,7 @@ const ADD_ONS = [
 	{
 		icon: <ScrollText size={14} />,
 		label: 'Having',
-		key: 'having',
+		key: ADD_ONS_KEYS.HAVING,
 		description:
 			'Filter grouped results based on aggregate conditions. Show only groups meeting specific criteria, like error rates > 5% or p99 latency > 500',
 		docLink:
@@ -63,7 +65,7 @@ const ADD_ONS = [
 	{
 		icon: <ScrollText size={14} />,
 		label: 'Order By',
-		key: 'order_by',
+		key: ADD_ONS_KEYS.ORDER_BY,
 		description:
 			'Sort results to surface what matters most. Quickly identify slowest operations, most frequent errors, or highest resource consumers.',
 		docLink:
@@ -72,7 +74,7 @@ const ADD_ONS = [
 	{
 		icon: <ScrollText size={14} />,
 		label: 'Limit',
-		key: 'limit',
+		key: ADD_ONS_KEYS.LIMIT,
 		description:
 			'Show only the top/bottom N results. Perfect for focusing on outliers, reducing noise, and improving dashboard performance.',
 		docLink:
@@ -81,7 +83,7 @@ const ADD_ONS = [
 	{
 		icon: <ScrollText size={14} />,
 		label: 'Legend format',
-		key: 'legend_format',
+		key: ADD_ONS_KEYS.LEGEND_FORMAT,
 		description:
 			'Customize series labels using variables like {{service.name}}-{{endpoint}}. Makes charts readable at a glance during incident investigation.',
 		docLink:
@@ -92,7 +94,7 @@ const ADD_ONS = [
 const REDUCE_TO = {
 	icon: <ScrollText size={14} />,
 	label: 'Reduce to',
-	key: 'reduce_to',
+	key: ADD_ONS_KEYS.REDUCE_TO,
 	description:
 		'Apply mathematical operations like sum, average, min, max, or percentiles to reduce multiple time series into a single value.',
 	docLink:
@@ -218,10 +220,9 @@ function QueryAddOns({
 		);
 
 		const availableAddOnKeys = new Set(filteredAddOns.map((addOn) => addOn.key));
-
 		// Filter and set selected views: add-ons that are both active and available
 		setSelectedViews(
-			ADD_ONS.filter(
+			filteredAddOns.filter(
 				(addOn) =>
 					activeAddOnKeys.has(addOn.key) && availableAddOnKeys.has(addOn.key),
 			),

frontend/src/components/QueryBuilderV2/__tests__/QueryAddOns.test.tsx

@@ -1,6 +1,12 @@
 /* eslint-disable */
-import { fireEvent, render, screen } from '@testing-library/react';
-import React from 'react';
+import {
+	fireEvent,
+	render,
+	screen,
+	userEvent,
+	waitFor,
+	within,
+} from 'tests/test-utils';
 
 import QueryAddOns from '../QueryV2/QueryAddOns/QueryAddOns';
 import { PANEL_TYPES } from 'constants/queryBuilder';
@@ -55,16 +61,7 @@ jest.mock('../QueryV2/QueryAddOns/HavingFilter/HavingFilter', () => ({
 	),
 }));
 
-jest.mock(
-	'container/QueryBuilder/filters/ReduceToFilter/ReduceToFilter',
-	() => ({
-		ReduceToFilter: ({ onChange }: any) => (
-			<button data-testid="reduce-to" onClick={() => onChange('sum')}>
-				ReduceToFilter
-			</button>
-		),
-	}),
-);
+// ReduceToFilter is not mocked - we test the actual Ant Design Select component
 
 function baseQuery(overrides: Partial<any> = {}): any {
 	return {
@@ -140,7 +137,7 @@ describe('QueryAddOns', () => {
 		expect(screen.getByTestId('order-by-content')).toBeInTheDocument();
 	});
 
-	it('limit input auto-opens when limit is set and changing it calls handler', () => {
+	it('limit input auto-opens when limit is set and changing it calls handler', async () => {
 		render(
 			<QueryAddOns
 				query={baseQuery({ limit: 5 })}
@@ -183,4 +180,88 @@ describe('QueryAddOns', () => {
 		expect(screen.getByTestId('limit-content')).toBeInTheDocument();
 		expect(limitInput.value).toBe('7');
 	});
+
+	it('shows reduce-to add-on when showReduceTo is true', () => {
+		render(
+			<QueryAddOns
+				query={baseQuery()}
+				version="v5"
+				isListViewPanel={false}
+				showReduceTo
+				panelType={PANEL_TYPES.TIME_SERIES}
+				index={0}
+				isForTraceOperator={false}
+			/>,
+		);
+
+		expect(screen.getByTestId('query-add-on-reduce_to')).toBeInTheDocument();
+	});
+
+	it('auto-opens reduce-to content when reduceTo is set', () => {
+		render(
+			<QueryAddOns
+				query={baseQuery({ reduceTo: 'sum' })}
+				version="v5"
+				isListViewPanel={false}
+				showReduceTo
+				panelType={PANEL_TYPES.TIME_SERIES}
+				index={0}
+				isForTraceOperator={false}
+			/>,
+		);
+
+		expect(screen.getByTestId('reduce-to-content')).toBeInTheDocument();
+	});
+
+	it('calls handleSetQueryData when reduce-to value changes', async () => {
+		const user = userEvent.setup({ pointerEventsCheck: 0 });
+		const query = baseQuery({
+			reduceTo: 'avg',
+			aggregations: [{ id: 'a', operator: 'count', reduceTo: 'avg' }],
+		});
+		render(
+			<QueryAddOns
+				query={query}
+				version="v5"
+				isListViewPanel={false}
+				showReduceTo
+				panelType={PANEL_TYPES.TIME_SERIES}
+				index={0}
+				isForTraceOperator={false}
+			/>,
+		);
+
+		// Wait for the reduce-to content section to be visible (it auto-opens when reduceTo is set)
+		await waitFor(() => {
+			expect(screen.getByTestId('reduce-to-content')).toBeInTheDocument();
+		});
+
+		// Get the Select component by its role (combobox)
+		// The Select is within the reduce-to-content section
+		const reduceToContent = screen.getByTestId('reduce-to-content');
+		const selectCombobox = within(reduceToContent).getByRole('combobox');
+
+		// Open the dropdown by clicking on the combobox
+		await user.click(selectCombobox);
+
+		// Wait for the dropdown listbox to appear
+		await screen.findByRole('listbox');
+
+		// Find and click the "Sum" option
+		const sumOption = await screen.findByText('Sum of values in timeframe');
+		await user.click(sumOption);
+
+		// Verify the handler was called with the correct value
+		await waitFor(() => {
+			expect(mockHandleSetQueryData).toHaveBeenCalledWith(0, {
+				...query,
+				aggregations: [
+					{
+						...(query.aggregations?.[0] as any),
+						reduceTo: 'sum',
+					},
+				],
+			});
+		});
+	});
 });

frontend/src/components/QuickFilters/FilterRenderers/Checkbox/Checkbox.tsx

@@ -421,11 +421,16 @@ export default function CheckboxFilter(props: ICheckboxProps): JSX.Element {
 										...currentFilter,
 										value: currentFilter.value.filter((val) => val !== value),
 									};
-
 									if (newFilter.value.length === 0) {
 										query.filters.items = query.filters.items.filter(
 											(item) => !isEqual(item.key?.key, filter.attributeKey.key),
 										);
+										if (query.filter?.expression) {
+											query.filter.expression = removeKeysFromExpression(
+												query.filter.expression,
+												[filter.attributeKey.key],
+											);
+										}
 									} else {
 										query.filters.items = query.filters.items.map((item) => {
 											if (isEqual(item.key?.key, filter.attributeKey.key)) {
@@ -435,6 +440,16 @@ export default function CheckboxFilter(props: ICheckboxProps): JSX.Element {
 										});
 									}
 								} else {
+									const newFilter = {
+										...currentFilter,
+										value: currentFilter.value === value ? null : currentFilter.value,
+									};
+									if (newFilter.value === null && query.filter?.expression) {
+										query.filter.expression = removeKeysFromExpression(
+											query.filter.expression,
+											[filter.attributeKey.key],
+										);
+									}
 									query.filters.items = query.filters.items.filter(
 										(item) => !isEqual(item.key?.key, filter.attributeKey.key),
 									);

frontend/src/components/YAxisUnitSelector/YAxisUnitSelector.tsx

@@ -1,11 +1,18 @@
 import './styles.scss';
 
-import { Select } from 'antd';
+import { WarningFilled } from '@ant-design/icons';
+import { Select, Tooltip } from 'antd';
 import { DefaultOptionType } from 'antd/es/select';
+import classNames from 'classnames';
+import { useMemo } from 'react';
 
 import { UniversalYAxisUnitMappings } from './constants';
 import { UniversalYAxisUnit, YAxisUnitSelectorProps } from './types';
-import { getYAxisCategories, mapMetricUnitToUniversalUnit } from './utils';
+import {
+	getUniversalNameFromMetricUnit,
+	getYAxisCategories,
+	mapMetricUnitToUniversalUnit,
+} from './utils';
 
 function YAxisUnitSelector({
 	value,
@@ -14,9 +21,24 @@ function YAxisUnitSelector({
 	loading = false,
 	'data-testid': dataTestId,
 	source,
+	initialValue,
 }: YAxisUnitSelectorProps): JSX.Element {
 	const universalUnit = mapMetricUnitToUniversalUnit(value);
 
+	const incompatibleUnitMessage = useMemo(() => {
+		if (!initialValue || !value || loading) return '';
+		const initialUniversalUnit = mapMetricUnitToUniversalUnit(initialValue);
+		const currentUniversalUnit = mapMetricUnitToUniversalUnit(value);
+		if (initialUniversalUnit !== currentUniversalUnit) {
+			const initialUniversalUnitName = getUniversalNameFromMetricUnit(
+				initialValue,
+			);
+			const currentUniversalUnitName = getUniversalNameFromMetricUnit(value);
+			return `Unit mismatch. Saved unit is ${initialUniversalUnitName}, but ${currentUniversalUnitName} is selected.`;
+		}
+		return '';
+	}, [initialValue, value, loading]);
+
 	const handleSearch = (
 		searchTerm: string,
 		currentOption: DefaultOptionType | undefined,
@@ -49,6 +71,16 @@ function YAxisUnitSelector({
 				placeholder={placeholder}
 				filterOption={(input, option): boolean => handleSearch(input, option)}
 				loading={loading}
+				suffixIcon={
+					incompatibleUnitMessage ? (
+						<Tooltip title={incompatibleUnitMessage}>
+							<WarningFilled />
+						</Tooltip>
+					) : undefined
+				}
+				className={classNames({
+					'warning-state': incompatibleUnitMessage,
+				})}
 				data-testid={dataTestId}
 			>
 				{categories.map((category) => (

frontend/src/components/YAxisUnitSelector/__tests__/YAxisUnitSelector.test.tsx

@@ -91,4 +91,36 @@ describe('YAxisUnitSelector', () => {
 		expect(screen.getByText('Bytes (B)')).toBeInTheDocument();
 		expect(screen.getByText('Seconds (s)')).toBeInTheDocument();
 	});
+
+	it('shows warning message when incompatible unit is selected', () => {
+		render(
+			<YAxisUnitSelector
+				source={YAxisSource.ALERTS}
+				value="By"
+				onChange={mockOnChange}
+				initialValue="s"
+			/>,
+		);
+		const warningIcon = screen.getByLabelText('warning');
+		expect(warningIcon).toBeInTheDocument();
+		fireEvent.mouseOver(warningIcon);
+		return screen
+			.findByText(
+				'Unit mismatch. Saved unit is Seconds (s), but Bytes (B) is selected.',
+			)
+			.then((el) => expect(el).toBeInTheDocument());
+	});
+
+	it('does not show warning message when compatible unit is selected', () => {
+		render(
+			<YAxisUnitSelector
+				source={YAxisSource.ALERTS}
+				value="s"
+				onChange={mockOnChange}
+				initialValue="s"
+			/>,
+		);
+		const warningIcon = screen.queryByLabelText('warning');
+		expect(warningIcon).not.toBeInTheDocument();
+	});
 });

frontend/src/components/YAxisUnitSelector/styles.scss

@@ -3,3 +3,13 @@
 		width: 220px;
 	}
 }
+
+.warning-state {
+	.ant-select-selector {
+		border-color: var(--bg-amber-400) !important;
+	}
+
+	.anticon {
+		color: var(--bg-amber-400) !important;
+	}
+}

frontend/src/components/YAxisUnitSelector/types.ts

@@ -6,6 +6,7 @@ export interface YAxisUnitSelectorProps {
 	disabled?: boolean;
 	'data-testid'?: string;
 	source: YAxisSource;
+	initialValue?: string;
 }
 
 export enum UniversalYAxisUnit {

frontend/src/constants/reactQueryKeys.ts

@@ -55,6 +55,7 @@ export const REACT_QUERY_KEY = {
 	GET_METRIC_DETAILS: 'GET_METRIC_DETAILS',
 	GET_RELATED_METRICS: 'GET_RELATED_METRICS',
 	GET_INSPECT_METRICS_DETAILS: 'GET_INSPECT_METRICS_DETAILS',
+	GET_METRIC_METADATA: 'GET_METRIC_METADATA',
 
 	// Traces Funnels Query Keys
 	GET_DOMAINS_LIST: 'GET_DOMAINS_LIST',

frontend/src/container/CreateAlertV2/QuerySection/ChartPreview/ChartPreview.tsx

@@ -5,9 +5,11 @@ import { useCreateAlertState } from 'container/CreateAlertV2/context';
 import ChartPreviewComponent from 'container/FormAlertRules/ChartPreview';
 import PlotTag from 'container/NewWidget/LeftContainer/WidgetGraph/PlotTag';
 import { useQueryBuilder } from 'hooks/queryBuilder/useQueryBuilder';
-import { useState } from 'react';
+import useGetYAxisUnit from 'hooks/useGetYAxisUnit';
+import { useEffect, useState } from 'react';
 import { useSelector } from 'react-redux';
 import { AppState } from 'store/reducers';
+import { AlertTypes } from 'types/api/alerts/alertTypes';
 import { AlertDef } from 'types/api/alerts/def';
 import { EQueryType } from 'types/common/dashboard';
 import { GlobalReducer } from 'types/reducer/globalTime';
@@ -18,7 +20,13 @@ export interface ChartPreviewProps {
 
 function ChartPreview({ alertDef }: ChartPreviewProps): JSX.Element {
 	const { currentQuery, panelType, stagedQuery } = useQueryBuilder();
-	const { thresholdState, alertState, setAlertState } = useCreateAlertState();
+	const {
+		alertType,
+		thresholdState,
+		alertState,
+		setAlertState,
+		isEditMode,
+	} = useCreateAlertState();
 	const { selectedTime: globalSelectedInterval } = useSelector<
 		AppState,
 		GlobalReducer
@@ -27,6 +35,25 @@ function ChartPreview({ alertDef }: ChartPreviewProps): JSX.Element {
 
 	const yAxisUnit = alertState.yAxisUnit || '';
 
+	const fetchYAxisUnit =
+		!isEditMode && alertType === AlertTypes.METRICS_BASED_ALERT;
+
+	const selectedQueryName = thresholdState.selectedQuery;
+	const { yAxisUnit: initialYAxisUnit, isLoading } = useGetYAxisUnit(
+		selectedQueryName,
+		{
+			enabled: fetchYAxisUnit,
+		},
+	);
+
+	// Every time a new metric is selected, set the y-axis unit to its unit value if present
+	// Only for metrics-based alerts
+	useEffect(() => {
+		if (fetchYAxisUnit) {
+			setAlertState({ type: 'SET_Y_AXIS_UNIT', payload: initialYAxisUnit });
+		}
+	}, [initialYAxisUnit, setAlertState, fetchYAxisUnit]);
+
 	const headline = (
 		<div className="chart-preview-headline">
 			<PlotTag
@@ -34,11 +61,13 @@ function ChartPreview({ alertDef }: ChartPreviewProps): JSX.Element {
 				panelType={panelType || PANEL_TYPES.TIME_SERIES}
 			/>
 			<YAxisUnitSelector
-				value={alertState.yAxisUnit}
+				value={yAxisUnit}
+				initialValue={initialYAxisUnit}
 				onChange={(value): void => {
 					setAlertState({ type: 'SET_Y_AXIS_UNIT', payload: value });
 				}}
 				source={YAxisSource.ALERTS}
+				loading={isLoading}
 			/>
 		</div>
 	);

frontend/src/container/GridCardLayout/GridCard/FullView/index.tsx

@@ -120,7 +120,6 @@ function FullView({
 				originalGraphType: selectedPanelType,
 			};
 		}
-		updatedQuery.builder.queryData[0].pageSize = 10;
 		return {
 			query: updatedQuery,
 			graphType: PANEL_TYPES.LIST,

frontend/src/container/GridCardLayout/GridCard/index.tsx

@@ -137,7 +137,6 @@ function GridCardGraph({
 				originalGraphType: widget.panelTypes,
 			};
 		}
-		updatedQuery.builder.queryData[0].pageSize = 10;
 		const initialDataSource = updatedQuery.builder.queryData[0].dataSource;
 		return {
 			query: updatedQuery,

frontend/src/container/MetricsExplorer/Explorer/Explorer.styles.scss

@@ -58,6 +58,27 @@
 	.explore-content {
 		padding: 0 8px;
 
+		.y-axis-unit-selector-container {
+			display: flex;
+			align-items: center;
+			gap: 10px;
+			padding-top: 10px;
+			margin-bottom: 10px;
+
+			.save-unit-container {
+				display: flex;
+				align-items: center;
+				gap: 10px;
+
+				.ant-btn {
+					border-radius: 2px;
+					.ant-typography {
+						font-size: 12px;
+					}
+				}
+			}
+		}
+
 		.ant-space {
 			margin-top: 10px;
 			margin-bottom: 20px;
@@ -75,6 +96,14 @@
 		.time-series-view {
 			min-width: 100%;
 			width: 100%;
+			position: relative;
+
+			.no-unit-warning {
+				position: absolute;
+				top: 30px;
+				right: 40px;
+				z-index: 1000;
+			}
 		}
 
 		.time-series-container {

frontend/src/container/MetricsExplorer/Explorer/Explorer.tsx

@@ -1,7 +1,7 @@
 import './Explorer.styles.scss';
 
 import * as Sentry from '@sentry/react';
-import { Switch } from 'antd';
+import { Switch, Tooltip } from 'antd';
 import logEvent from 'api/common/logEvent';
 import { QueryBuilderV2 } from 'components/QueryBuilderV2/QueryBuilderV2';
 import WarningPopover from 'components/WarningPopover/WarningPopover';
@@ -25,10 +25,14 @@ import { generateExportToDashboardLink } from 'utils/dashboard/generateExportToD
 import { v4 as uuid } from 'uuid';
 
 import { MetricsExplorerEventKeys, MetricsExplorerEvents } from '../events';
-// import QuerySection from './QuerySection';
+import MetricDetails from '../MetricDetails/MetricDetails';
 import TimeSeries from './TimeSeries';
 import { ExplorerTabs } from './types';
-import { splitQueryIntoOneChartPerQuery } from './utils';
+import {
+	getMetricUnits,
+	splitQueryIntoOneChartPerQuery,
+	useGetMetrics,
+} from './utils';
 
 const ONE_CHART_PER_QUERY_ENABLED_KEY = 'isOneChartPerQueryEnabled';
 
@@ -40,6 +44,34 @@ function Explorer(): JSX.Element {
 		currentQuery,
 	} = useQueryBuilder();
 	const { safeNavigate } = useSafeNavigate();
+	const [isMetricDetailsOpen, setIsMetricDetailsOpen] = useState(false);
+
+	const metricNames = useMemo(() => {
+		const currentMetricNames: string[] = [];
+		stagedQuery?.builder.queryData.forEach((query) => {
+			if (query.aggregateAttribute?.key) {
+				currentMetricNames.push(query.aggregateAttribute?.key);
+			}
+		});
+		return currentMetricNames;
+	}, [stagedQuery]);
+
+	const {
+		metrics,
+		isLoading: isMetricUnitsLoading,
+		isError: isMetricUnitsError,
+	} = useGetMetrics(metricNames);
+
+	const units = useMemo(() => getMetricUnits(metrics), [metrics]);
+
+	const areAllMetricUnitsSame = useMemo(
+		() =>
+			!isMetricUnitsLoading &&
+			!isMetricUnitsError &&
+			units.length > 0 &&
+			units.every((unit) => unit && unit === units[0]),
+		[units, isMetricUnitsLoading, isMetricUnitsError],
+	);
 
 	const [searchParams, setSearchParams] = useSearchParams();
 	const isOneChartPerQueryEnabled =
@@ -48,7 +80,66 @@ function Explorer(): JSX.Element {
 	const [showOneChartPerQuery, toggleShowOneChartPerQuery] = useState(
 		isOneChartPerQueryEnabled,
 	);
+	const [disableOneChartPerQuery, toggleDisableOneChartPerQuery] = useState(
+		false,
+	);
 	const [selectedTab] = useState<ExplorerTabs>(ExplorerTabs.TIME_SERIES);
+	const [yAxisUnit, setYAxisUnit] = useState<string | undefined>();
+
+	const unitsLength = useMemo(() => units.length, [units]);
+	const firstUnit = useMemo(() => units?.[0], [units]);
+
+	useEffect(() => {
+		// Set the y axis unit to the first metric unit if
+		// 1. There is one metric unit and it is not empty
+		// 2. All metric units are the same and not empty
+		// Else, set the y axis unit to empty if
+		// 1. There are more than one metric units and they are not the same
+		// 2. There are no metric units
+		// 3. There is exactly one metric unit but it is empty/undefined
+		if (unitsLength === 0) {
+			setYAxisUnit(undefined);
+		} else if (unitsLength === 1 && firstUnit) {
+			setYAxisUnit(firstUnit);
+		} else if (unitsLength === 1 && !firstUnit) {
+			setYAxisUnit(undefined);
+		} else if (areAllMetricUnitsSame) {
+			if (firstUnit) {
+				setYAxisUnit(firstUnit);
+			} else {
+				setYAxisUnit(undefined);
+			}
+		} else if (unitsLength > 1 && !areAllMetricUnitsSame) {
+			setYAxisUnit(undefined);
+		}
+	}, [unitsLength, firstUnit, areAllMetricUnitsSame]);
+
+	useEffect(() => {
+		// Don't apply logic during loading to avoid overwriting user preferences
+		if (isMetricUnitsLoading) {
+			return;
+		}
+
+		// Disable one chart per query if -
+		// 1. There are more than one metric
+		// 2. The metric units are not the same
+		if (units.length > 1 && !areAllMetricUnitsSame) {
+			toggleShowOneChartPerQuery(true);
+			toggleDisableOneChartPerQuery(true);
+		} else if (units.length <= 1) {
+			toggleShowOneChartPerQuery(false);
+			toggleDisableOneChartPerQuery(true);
+		} else {
+			// When units are the same and loading is complete, restore URL-based preference
+			toggleShowOneChartPerQuery(isOneChartPerQueryEnabled);
+			toggleDisableOneChartPerQuery(false);
+		}
+	}, [
+		units,
+		areAllMetricUnitsSame,
+		isMetricUnitsLoading,
+		isOneChartPerQueryEnabled,
+	]);
 
 	const handleToggleShowOneChartPerQuery = (): void => {
 		toggleShowOneChartPerQuery(!showOneChartPerQuery);
@@ -68,15 +159,20 @@ function Explorer(): JSX.Element {
 		[updateAllQueriesOperators],
 	);
 
-	const exportDefaultQuery = useMemo(
-		() =>
-			updateAllQueriesOperators(
-				currentQuery || initialQueriesMap[DataSource.METRICS],
-				PANEL_TYPES.TIME_SERIES,
-				DataSource.METRICS,
-			),
-		[currentQuery, updateAllQueriesOperators],
-	);
+	const exportDefaultQuery = useMemo(() => {
+		const query = updateAllQueriesOperators(
+			currentQuery || initialQueriesMap[DataSource.METRICS],
+			PANEL_TYPES.TIME_SERIES,
+			DataSource.METRICS,
+		);
+		if (yAxisUnit && !query.unit) {
+			return {
+				...query,
+				unit: yAxisUnit,
+			};
+		}
+		return query;
+	}, [currentQuery, updateAllQueriesOperators, yAxisUnit]);
 
 	useShareBuilderUrl({ defaultValue: defaultQuery });
 
@@ -90,8 +186,16 @@ function Explorer(): JSX.Element {
 
 			const widgetId = uuid();
 
+			let query = queryToExport || exportDefaultQuery;
+			if (yAxisUnit && !query.unit) {
+				query = {
+					...query,
+					unit: yAxisUnit,
+				};
+			}
+
 			const dashboardEditView = generateExportToDashboardLink({
-				query: queryToExport || exportDefaultQuery,
+				query,
 				panelType: PANEL_TYPES.TIME_SERIES,
 				dashboardId: dashboard.id,
 				widgetId,
@@ -99,17 +203,33 @@ function Explorer(): JSX.Element {
 
 			safeNavigate(dashboardEditView);
 		},
-		[exportDefaultQuery, safeNavigate],
+		[exportDefaultQuery, safeNavigate, yAxisUnit],
 	);
 
 	const splitedQueries = useMemo(
 		() =>
 			splitQueryIntoOneChartPerQuery(
 				stagedQuery || initialQueriesMap[DataSource.METRICS],
+				metricNames,
+				units,
 			),
-		[stagedQuery],
+		[stagedQuery, metricNames, units],
 	);
 
+	const [selectedMetricName, setSelectedMetricName] = useState<string | null>(
+		null,
+	);
+
+	const handleOpenMetricDetails = (metricName: string): void => {
+		setIsMetricDetailsOpen(true);
+		setSelectedMetricName(metricName);
+	};
+
+	const handleCloseMetricDetails = (): void => {
+		setIsMetricDetailsOpen(false);
+		setSelectedMetricName(null);
+	};
+
 	useEffect(() => {
 		logEvent(MetricsExplorerEvents.TabChanged, {
 			[MetricsExplorerEventKeys.Tab]: 'explorer',
@@ -123,17 +243,44 @@ function Explorer(): JSX.Element {
 
 	const [warning, setWarning] = useState<Warning | undefined>(undefined);
 
+	const oneChartPerQueryDisabledTooltip = useMemo(() => {
+		if (splitedQueries.length <= 1) {
+			return 'One chart per query cannot be toggled for a single query.';
+		}
+		if (units.length <= 1) {
+			return 'One chart per query cannot be toggled when there is only one metric.';
+		}
+		if (disableOneChartPerQuery) {
+			return 'One chart per query cannot be disabled for multiple queries with different units.';
+		}
+		return undefined;
+	}, [disableOneChartPerQuery, splitedQueries.length, units.length]);
+
+	// Show the y axis unit selector if -
+	// 1. There is only one metric
+	// 2. The metric has no saved unit
+	const showYAxisUnitSelector = useMemo(
+		() => !isMetricUnitsLoading && units.length === 1 && !units[0],
+		[units, isMetricUnitsLoading],
+	);
+
 	return (
 		<Sentry.ErrorBoundary fallback={<ErrorBoundaryFallback />}>
 			<div className="metrics-explorer-explore-container">
 				<div className="explore-header">
 					<div className="explore-header-left-actions">
 						<span>1 chart/query</span>
-						<Switch
-							checked={showOneChartPerQuery}
-							onChange={handleToggleShowOneChartPerQuery}
-							size="small"
-						/>
+						<Tooltip
+							open={disableOneChartPerQuery ? undefined : false}
+							title={oneChartPerQueryDisabledTooltip}
+						>
+							<Switch
+								checked={showOneChartPerQuery}
+								onChange={handleToggleShowOneChartPerQuery}
+								disabled={disableOneChartPerQuery || splitedQueries.length <= 1}
+								size="small"
+							/>
+						</Tooltip>
 					</div>
 					<div className="explore-header-right-actions">
 						{!isEmpty(warning) && <WarningPopover warningData={warning} />}
@@ -174,6 +321,16 @@ function Explorer(): JSX.Element {
 						<TimeSeries
 							showOneChartPerQuery={showOneChartPerQuery}
 							setWarning={setWarning}
+							areAllMetricUnitsSame={areAllMetricUnitsSame}
+							isMetricUnitsLoading={isMetricUnitsLoading}
+							isMetricUnitsError={isMetricUnitsError}
+							metricUnits={units}
+							metricNames={metricNames}
+							metrics={metrics}
+							handleOpenMetricDetails={handleOpenMetricDetails}
+							yAxisUnit={yAxisUnit}
+							setYAxisUnit={setYAxisUnit}
+							showYAxisUnitSelector={showYAxisUnitSelector}
 						/>
 					)}
 					{/* TODO: Enable once we have resolved all related metrics issues */}
@@ -187,9 +344,17 @@ function Explorer(): JSX.Element {
 				query={exportDefaultQuery}
 				sourcepage={DataSource.METRICS}
 				onExport={handleExport}
-				isOneChartPerQuery={false}
+				isOneChartPerQuery={showOneChartPerQuery}
 				splitedQueries={splitedQueries}
 			/>
+			{isMetricDetailsOpen && (
+				<MetricDetails
+					metricName={selectedMetricName}
+					isOpen={isMetricDetailsOpen}
+					onClose={handleCloseMetricDetails}
+					isModalTimeSelection={false}
+				/>
+			)}
 		</Sentry.ErrorBoundary>
 	);
 }

frontend/src/container/MetricsExplorer/Explorer/TimeSeries.tsx

@@ -1,14 +1,18 @@
+import { Color } from '@signozhq/design-tokens';
+import { Tooltip, Typography } from 'antd';
 import { isAxiosError } from 'axios';
 import classNames from 'classnames';
+import YAxisUnitSelector from 'components/YAxisUnitSelector';
+import { YAxisSource } from 'components/YAxisUnitSelector/types';
 import { ENTITY_VERSION_V5 } from 'constants/app';
 import { initialQueriesMap, PANEL_TYPES } from 'constants/queryBuilder';
 import { REACT_QUERY_KEY } from 'constants/reactQueryKeys';
-import { BuilderUnitsFilter } from 'container/QueryBuilder/filters/BuilderUnitsFilter/BuilderUnits';
 import TimeSeriesView from 'container/TimeSeriesView/TimeSeriesView';
 import { convertDataValueToMs } from 'container/TimeSeriesView/utils';
 import { useQueryBuilder } from 'hooks/queryBuilder/useQueryBuilder';
 import { GetMetricQueryRange } from 'lib/dashboard/getQueryResults';
-import { useMemo, useState } from 'react';
+import { AlertTriangle } from 'lucide-react';
+import { useMemo } from 'react';
 import { useQueries } from 'react-query';
 import { useSelector } from 'react-redux';
 import { AppState } from 'store/reducers';
@@ -24,6 +28,13 @@ import { splitQueryIntoOneChartPerQuery } from './utils';
 function TimeSeries({
 	showOneChartPerQuery,
 	setWarning,
+	isMetricUnitsLoading,
+	metricUnits,
+	metricNames,
+	handleOpenMetricDetails,
+	yAxisUnit,
+	setYAxisUnit,
+	showYAxisUnitSelector,
 }: TimeSeriesProps): JSX.Element {
 	const { stagedQuery, currentQuery } = useQueryBuilder();
 
@@ -56,13 +67,14 @@ function TimeSeries({
 			showOneChartPerQuery
 				? splitQueryIntoOneChartPerQuery(
 						stagedQuery || initialQueriesMap[DataSource.METRICS],
+						metricNames,
+						metricUnits,
 				  )
 				: [stagedQuery || initialQueriesMap[DataSource.METRICS]],
-		[showOneChartPerQuery, stagedQuery],
+		// eslint-disable-next-line react-hooks/exhaustive-deps
+		[showOneChartPerQuery, stagedQuery, JSON.stringify(metricUnits)],
 	);
 
-	const [yAxisUnit, setYAxisUnit] = useState<string>('');
-
 	const queries = useQueries(
 		queryPayloads.map((payload, index) => ({
 			queryKey: [
@@ -126,32 +138,148 @@ function TimeSeries({
 		setYAxisUnit(value);
 	};
 
+	// TODO: Enable once we have resolved all related metrics v2 api issues
+	// Show the save unit button if
+	// 1. There is only one metric
+	// 2. The metric has no saved unit
+	// 3. The user has selected a unit
+	// const showSaveUnitButton = useMemo(
+	// 	() =>
+	// 		metricUnits.length === 1 &&
+	// 		Boolean(metrics?.[0]) &&
+	// 		!metricUnits[0] &&
+	// 		yAxisUnit,
+	// 	[metricUnits, metrics, yAxisUnit],
+	// );
+
+	// const {
+	// 	mutate: updateMetricMetadata,
+	// 	isLoading: isUpdatingMetricMetadata,
+	// } = useUpdateMetricMetadata();
+
+	// const handleSaveUnit = (): void => {
+	// 	updateMetricMetadata(
+	// 		{
+	// 			metricName: metricNames[0],
+	// 			payload: {
+	// 				unit: yAxisUnit,
+	// 				description: metrics[0]?.description ?? '',
+	// 				metricType: metrics[0]?.type as MetricType,
+	// 				temporality: metrics[0]?.temporality,
+	// 			},
+	// 		},
+	// 		{
+	// 			onSuccess: () => {
+	// 				notifications.success({
+	// 					message: 'Unit saved successfully',
+	// 				});
+	// 				queryClient.invalidateQueries([
+	// 					REACT_QUERY_KEY.GET_METRIC_DETAILS,
+	// 					metricNames[0],
+	// 				]);
+	// 			},
+	// 			onError: () => {
+	// 				notifications.error({
+	// 					message: 'Failed to save unit',
+	// 				});
+	// 			},
+	// 		},
+	// 	);
+	// };
+
 	return (
 		<>
-			<BuilderUnitsFilter onChange={onUnitChangeHandler} yAxisUnit={yAxisUnit} />
+			<div className="y-axis-unit-selector-container">
+				{showYAxisUnitSelector && (
+					<>
+						<YAxisUnitSelector
+							onChange={onUnitChangeHandler}
+							value={yAxisUnit}
+							source={YAxisSource.EXPLORER}
+							data-testid="y-axis-unit-selector"
+						/>
+						{/* TODO: Enable once we have resolved all related metrics v2 api issues */}
+						{/* {showSaveUnitButton && (
+							<div className="save-unit-container">
+								<Typography.Text>
+									Save the selected unit for this metric?
+								</Typography.Text>
+								<Button
+									type="primary"
+									size="small"
+									disabled={isUpdatingMetricMetadata}
+									onClick={handleSaveUnit}
+								>
+									<Typography.Paragraph>Yes</Typography.Paragraph>
+								</Button>
+							</div>
+						)} */}
+					</>
+				)}
+			</div>
 			<div
 				className={classNames({
 					'time-series-container': changeLayoutForOneChartPerQuery,
 				})}
 			>
-				{responseData.map((datapoint, index) => (
-					<div
-						className="time-series-view"
-						// eslint-disable-next-line react/no-array-index-key
-						key={index}
-					>
-						<TimeSeriesView
-							isFilterApplied={false}
-							isError={queries[index].isError}
-							isLoading={queries[index].isLoading}
-							data={datapoint}
-							yAxisUnit={yAxisUnit}
-							dataSource={DataSource.METRICS}
-							error={queries[index].error as APIError}
-							setWarning={setWarning}
-						/>
-					</div>
-				))}
+				{responseData.map((datapoint, index) => {
+					const isQueryDataItem = index < metricNames.length;
+					const metricName = isQueryDataItem ? metricNames[index] : undefined;
+					const metricUnit = isQueryDataItem ? metricUnits[index] : undefined;
+
+					// Show the no unit warning if -
+					// 1. The metric query is not loading
+					// 2. The metric units are not loading
+					// 3. There are more than one metric
+					// 4. The current metric unit is empty
+					// 5. Is a queryData item
+					const isMetricUnitEmpty =
+						isQueryDataItem &&
+						!queries[index].isLoading &&
+						!isMetricUnitsLoading &&
+						metricUnits.length > 1 &&
+						!metricUnit &&
+						metricName;
+
+					const currentYAxisUnit = yAxisUnit || metricUnit;
+
+					return (
+						<div
+							className="time-series-view"
+							// eslint-disable-next-line react/no-array-index-key
+							key={index}
+						>
+							{isMetricUnitEmpty && metricName && (
+								<Tooltip
+									className="no-unit-warning"
+									title={
+										<Typography.Text>
+											This metric does not have a unit. Please set one for it in the{' '}
+											<Typography.Link
+												onClick={(): void => handleOpenMetricDetails(metricName)}
+											>
+												metric details
+											</Typography.Link>{' '}
+											page.
+										</Typography.Text>
+									}
+								>
+									<AlertTriangle size={16} color={Color.BG_AMBER_400} />
+								</Tooltip>
+							)}
+							<TimeSeriesView
+								isFilterApplied={false}
+								isError={queries[index].isError}
+								isLoading={queries[index].isLoading || isMetricUnitsLoading}
+								data={datapoint}
+								yAxisUnit={currentYAxisUnit}
+								dataSource={DataSource.METRICS}
+								error={queries[index].error as APIError}
+								setWarning={setWarning}
+							/>
+						</div>
+					);
+				})}
 			</div>
 		</>
 	);

frontend/src/container/MetricsExplorer/Explorer/__tests__/Explorer.test.tsx

@@ -1,4 +1,6 @@
 import { render, screen } from '@testing-library/react';
+import { Temporality } from 'api/metricsExplorer/getMetricDetails';
+import { MetricType } from 'api/metricsExplorer/getMetricsList';
 import { initialQueriesMap, PANEL_TYPES } from 'constants/queryBuilder';
 import * as useOptionsMenuHooks from 'container/OptionsMenu';
 import * as useUpdateDashboardHooks from 'hooks/dashboard/useUpdateDashboard';
@@ -12,13 +14,18 @@ import { MemoryRouter } from 'react-router-dom';
 import { useSearchParams } from 'react-router-dom-v5-compat';
 import store from 'store';
 import { LicenseEvent } from 'types/api/licensesV3/getActive';
-import { DataSource } from 'types/common/queryBuilder';
+import { MetricMetadata } from 'types/api/metricsExplorer/v2/getMetricMetadata';
+import { BaseAutocompleteData } from 'types/api/queryBuilder/queryAutocompleteResponse';
+import { DataSource, QueryBuilderContextType } from 'types/common/queryBuilder';
 
 import Explorer from '../Explorer';
+import * as useGetMetricsHooks from '../utils';
 
 const mockSetSearchParams = jest.fn();
 const queryClient = new QueryClient();
-const mockUpdateAllQueriesOperators = jest.fn();
+const mockUpdateAllQueriesOperators = jest
+	.fn()
+	.mockReturnValue(initialQueriesMap[DataSource.METRICS]);
 const mockUseQueryBuilderData = {
 	handleRunQuery: jest.fn(),
 	stagedQuery: initialQueriesMap[DataSource.METRICS],
@@ -126,6 +133,30 @@ jest.spyOn(useQueryBuilderHooks, 'useQueryBuilder').mockReturnValue({
 	...mockUseQueryBuilderData,
 } as any);
 
+const Y_AXIS_UNIT_SELECTOR_TEST_ID = 'y-axis-unit-selector';
+
+const mockMetric: MetricMetadata = {
+	type: MetricType.SUM,
+	description: 'metric1 description',
+	unit: 'metric1 unit',
+	temporality: Temporality.CUMULATIVE,
+	isMonotonic: true,
+};
+
+function renderExplorer(): void {
+	render(
+		<QueryClientProvider client={queryClient}>
+			<MemoryRouter>
+				<Provider store={store}>
+					<ErrorModalProvider>
+						<Explorer />
+					</ErrorModalProvider>
+				</Provider>
+			</MemoryRouter>
+		</QueryClientProvider>,
+	);
+}
+
 describe('Explorer', () => {
 	beforeEach(() => {
 		jest.clearAllMocks();
@@ -142,17 +173,7 @@ describe('Explorer', () => {
 			mockSetSearchParams,
 		]);
 
-		render(
-			<QueryClientProvider client={queryClient}>
-				<MemoryRouter>
-					<Provider store={store}>
-						<ErrorModalProvider>
-							<Explorer />
-						</ErrorModalProvider>
-					</Provider>
-				</MemoryRouter>
-			</QueryClientProvider>,
-		);
+		renderExplorer();
 
 		expect(mockUpdateAllQueriesOperators).toHaveBeenCalledWith(
 			initialQueriesMap[DataSource.METRICS],
@@ -166,18 +187,13 @@ describe('Explorer', () => {
 			new URLSearchParams({ isOneChartPerQueryEnabled: 'true' }),
 			mockSetSearchParams,
 		]);
+		jest.spyOn(useGetMetricsHooks, 'useGetMetrics').mockReturnValue({
+			isLoading: false,
+			isError: false,
+			metrics: [mockMetric, mockMetric],
+		});
 
-		render(
-			<QueryClientProvider client={queryClient}>
-				<MemoryRouter>
-					<Provider store={store}>
-						<ErrorModalProvider>
-							<Explorer />
-						</ErrorModalProvider>
-					</Provider>
-				</MemoryRouter>
-			</QueryClientProvider>,
-		);
+		renderExplorer();
 
 		const toggle = screen.getByRole('switch');
 		expect(toggle).toBeChecked();
@@ -188,20 +204,132 @@ describe('Explorer', () => {
 			new URLSearchParams({ isOneChartPerQueryEnabled: 'false' }),
 			mockSetSearchParams,
 		]);
+		jest.spyOn(useGetMetricsHooks, 'useGetMetrics').mockReturnValue({
+			isLoading: false,
+			isError: false,
+			metrics: [mockMetric, mockMetric],
+		});
 
-		render(
-			<QueryClientProvider client={queryClient}>
-				<MemoryRouter>
-					<Provider store={store}>
-						<ErrorModalProvider>
-							<Explorer />
-						</ErrorModalProvider>
-					</Provider>
-				</MemoryRouter>
-			</QueryClientProvider>,
-		);
+		renderExplorer();
 
 		const toggle = screen.getByRole('switch');
 		expect(toggle).not.toBeChecked();
 	});
+
+	it('should not render y axis unit selector for single metric which has a unit', () => {
+		jest.spyOn(useGetMetricsHooks, 'useGetMetrics').mockReturnValue({
+			isLoading: false,
+			isError: false,
+			metrics: [mockMetric],
+		});
+
+		renderExplorer();
+
+		const yAxisUnitSelector = screen.queryByTestId(Y_AXIS_UNIT_SELECTOR_TEST_ID);
+		expect(yAxisUnitSelector).not.toBeInTheDocument();
+	});
+
+	it('should not render y axis unit selector for mutliple metrics with same unit', () => {
+		(useSearchParams as jest.Mock).mockReturnValueOnce([
+			new URLSearchParams({ isOneChartPerQueryEnabled: 'true' }),
+			mockSetSearchParams,
+		]);
+		jest.spyOn(useGetMetricsHooks, 'useGetMetrics').mockReturnValue({
+			isLoading: false,
+			isError: false,
+			metrics: [mockMetric, mockMetric],
+		});
+
+		renderExplorer();
+
+		const yAxisUnitSelector = screen.queryByTestId(Y_AXIS_UNIT_SELECTOR_TEST_ID);
+		expect(yAxisUnitSelector).not.toBeInTheDocument();
+	});
+
+	it('should hide y axis unit selector for multiple metrics with different units', () => {
+		jest.spyOn(useGetMetricsHooks, 'useGetMetrics').mockReturnValue({
+			isLoading: false,
+			isError: false,
+			metrics: [mockMetric, mockMetric],
+		});
+
+		renderExplorer();
+
+		const yAxisUnitSelector = screen.queryByTestId(Y_AXIS_UNIT_SELECTOR_TEST_ID);
+		expect(yAxisUnitSelector).not.toBeInTheDocument();
+
+		// One chart per query toggle should be disabled
+		const oneChartPerQueryToggle = screen.getByRole('switch');
+		expect(oneChartPerQueryToggle).toBeDisabled();
+	});
+
+	it('should render empty y axis unit selector for a single metric with no unit', () => {
+		jest.spyOn(useGetMetricsHooks, 'useGetMetrics').mockReturnValue({
+			isLoading: false,
+			isError: false,
+			metrics: [
+				{
+					type: MetricType.SUM,
+					description: 'metric1 description',
+					unit: '',
+					temporality: Temporality.CUMULATIVE,
+					isMonotonic: true,
+				},
+			],
+		});
+
+		renderExplorer();
+
+		const yAxisUnitSelector = screen.queryByTestId(Y_AXIS_UNIT_SELECTOR_TEST_ID);
+		expect(yAxisUnitSelector).toBeInTheDocument();
+		expect(yAxisUnitSelector).toHaveTextContent('Please select a unit');
+	});
+
+	it('one chart per query should be off and disabled when there is only one query', () => {
+		jest.spyOn(useGetMetricsHooks, 'useGetMetrics').mockReturnValue({
+			isLoading: false,
+			isError: false,
+			metrics: [mockMetric],
+		});
+
+		renderExplorer();
+
+		const oneChartPerQueryToggle = screen.getByRole('switch');
+		expect(oneChartPerQueryToggle).not.toBeChecked();
+		expect(oneChartPerQueryToggle).toBeDisabled();
+	});
+
+	it('one chart per query should enabled by default when there are multiple metrics with the same unit', () => {
+		const mockQueryData = {
+			...initialQueriesMap[DataSource.METRICS].builder.queryData[0],
+			aggregateAttribute: {
+				...(initialQueriesMap[DataSource.METRICS].builder.queryData[0]
+					.aggregateAttribute as BaseAutocompleteData),
+				key: 'metric1',
+			},
+		};
+		const mockStagedQueryWithMultipleQueries = {
+			...initialQueriesMap[DataSource.METRICS],
+			builder: {
+				...initialQueriesMap[DataSource.METRICS].builder,
+				queryData: [mockQueryData, mockQueryData],
+			},
+		};
+
+		jest.spyOn(useQueryBuilderHooks, 'useQueryBuilder').mockReturnValue(({
+			...mockUseQueryBuilderData,
+			stagedQuery: mockStagedQueryWithMultipleQueries,
+		} as Partial<QueryBuilderContextType>) as QueryBuilderContextType);
+
+		jest.spyOn(useGetMetricsHooks, 'useGetMetrics').mockReturnValue({
+			isLoading: false,
+			isError: false,
+			metrics: [mockMetric, mockMetric],
+		});
+
+		renderExplorer();
+
+		const oneChartPerQueryToggle = screen.getByRole('switch');
+		expect(oneChartPerQueryToggle).toBeEnabled();
+	});
 });

frontend/src/container/MetricsExplorer/Explorer/__tests__/TimeSeries.test.tsx

@@ -0,0 +1,180 @@
+import { render, RenderResult, screen, waitFor } from '@testing-library/react';
+import userEvent from '@testing-library/user-event';
+import { Temporality } from 'api/metricsExplorer/getMetricDetails';
+import { MetricType } from 'api/metricsExplorer/getMetricsList';
+import { UpdateMetricMetadataResponse } from 'api/metricsExplorer/updateMetricMetadata';
+import * as useUpdateMetricMetadataHooks from 'hooks/metricsExplorer/useUpdateMetricMetadata';
+import { UseUpdateMetricMetadataProps } from 'hooks/metricsExplorer/useUpdateMetricMetadata';
+import { UseMutationResult } from 'react-query';
+import { ErrorResponse, SuccessResponse } from 'types/api';
+import { MetricMetadata } from 'types/api/metricsExplorer/v2/getMetricMetadata';
+
+import TimeSeries from '../TimeSeries';
+import { TimeSeriesProps } from '../types';
+
+type MockUpdateMetricMetadata = UseMutationResult<
+	SuccessResponse<UpdateMetricMetadataResponse> | ErrorResponse,
+	Error,
+	UseUpdateMetricMetadataProps
+>;
+const mockUpdateMetricMetadata = jest.fn();
+jest
+	.spyOn(useUpdateMetricMetadataHooks, 'useUpdateMetricMetadata')
+	.mockReturnValue(({
+		mutate: mockUpdateMetricMetadata,
+		isLoading: false,
+	} as Partial<MockUpdateMetricMetadata>) as MockUpdateMetricMetadata);
+
+jest.mock('container/TimeSeriesView/TimeSeriesView', () => ({
+	__esModule: true,
+	default: jest.fn().mockReturnValue(
+		<div role="img" aria-label="warning">
+			TimeSeriesView
+		</div>,
+	),
+}));
+
+jest.mock('react-query', () => ({
+	...jest.requireActual('react-query'),
+	useQueryClient: jest.fn().mockReturnValue({
+		invalidateQueries: jest.fn(),
+	}),
+	useQueries: jest.fn().mockImplementation((queries: any[]) =>
+		queries.map(() => ({
+			data: undefined,
+			isLoading: false,
+			isError: false,
+			error: undefined,
+		})),
+	),
+}));
+
+jest.mock('react-redux', () => ({
+	...jest.requireActual('react-redux'),
+	useSelector: jest.fn().mockReturnValue({
+		globalTime: {
+			selectedTime: '5min',
+			maxTime: 1713738000000,
+			minTime: 1713734400000,
+		},
+	}),
+}));
+
+const mockMetric: MetricMetadata = {
+	type: MetricType.SUM,
+	description: 'metric1 description',
+	unit: 'metric1 unit',
+	temporality: Temporality.CUMULATIVE,
+	isMonotonic: true,
+};
+
+const mockSetWarning = jest.fn();
+const mockSetIsMetricDetailsOpen = jest.fn();
+const mockSetYAxisUnit = jest.fn();
+
+function renderTimeSeries(
+	overrides: Partial<TimeSeriesProps> = {},
+): RenderResult {
+	return render(
+		<TimeSeries
+			showOneChartPerQuery={false}
+			setWarning={mockSetWarning}
+			areAllMetricUnitsSame={false}
+			isMetricUnitsLoading={false}
+			metricUnits={[]}
+			metricNames={[]}
+			metrics={[]}
+			isMetricUnitsError={false}
+			handleOpenMetricDetails={mockSetIsMetricDetailsOpen}
+			yAxisUnit="count"
+			setYAxisUnit={mockSetYAxisUnit}
+			showYAxisUnitSelector={false}
+			// eslint-disable-next-line react/jsx-props-no-spreading
+			{...overrides}
+		/>,
+	);
+}
+
+describe('TimeSeries', () => {
+	it('should render a warning icon when a metric has no unit among multiple metrics', () => {
+		const user = userEvent.setup();
+		const { container } = renderTimeSeries({
+			metricUnits: ['', 'count'],
+			metricNames: ['metric1', 'metric2'],
+			metrics: [undefined, undefined],
+		});
+
+		const alertIcon = container.querySelector('.no-unit-warning') as HTMLElement;
+		user.hover(alertIcon);
+		waitFor(() =>
+			expect(
+				screen.findByText('This metric does not have a unit'),
+			).toBeInTheDocument(),
+		);
+	});
+
+	it('clicking on warning icon tooltip should open metric details modal', async () => {
+		const user = userEvent.setup();
+		const { container } = renderTimeSeries({
+			metricUnits: ['', 'count'],
+			metricNames: ['metric1', 'metric2'],
+			metrics: [mockMetric, mockMetric],
+			yAxisUnit: 'seconds',
+		});
+
+		const alertIcon = container.querySelector('.no-unit-warning') as HTMLElement;
+		user.hover(alertIcon);
+
+		const metricDetailsLink = await screen.findByText('metric details');
+		user.click(metricDetailsLink);
+
+		waitFor(() =>
+			expect(mockSetIsMetricDetailsOpen).toHaveBeenCalledWith('metric1'),
+		);
+	});
+
+	// TODO: Unskip this test once the save unit button is implemented
+	// Tracking at - https://github.com/SigNoz/engineering-pod/issues/3495
+	it.skip('shows Save unit button when metric had no unit but one is selected', () => {
+		const { findByText, getByRole } = renderTimeSeries({
+			metricUnits: [undefined],
+			metricNames: ['metric1'],
+			metrics: [mockMetric],
+			yAxisUnit: 'seconds',
+		});
+
+		expect(
+			findByText('Save the selected unit for this metric?'),
+		).toBeInTheDocument();
+
+		const yesButton = getByRole('button', { name: 'Yes' });
+		expect(yesButton).toBeInTheDocument();
+		expect(yesButton).toBeEnabled();
+	});
+
+	// TODO: Unskip this test once the save unit button is implemented
+	// Tracking at - https://github.com/SigNoz/engineering-pod/issues/3495
+	it.skip('clicking on save unit button shoould upated metric metadata', () => {
+		const user = userEvent.setup();
+		const { getByRole } = renderTimeSeries({
+			metricUnits: [''],
+			metricNames: ['metric1'],
+			metrics: [mockMetric],
+			yAxisUnit: 'seconds',
+		});
+
+		const yesButton = getByRole('button', { name: /Yes/i });
+		user.click(yesButton);
+
+		expect(mockUpdateMetricMetadata).toHaveBeenCalledWith(
+			{
+				metricName: 'metric1',
+				payload: expect.objectContaining({ unit: 'seconds' }),
+			},
+			expect.objectContaining({
+				onSuccess: expect.any(Function),
+				onError: expect.any(Function),
+			}),
+		);
+	});
+});

frontend/src/container/MetricsExplorer/Explorer/__tests__/utils.test.tsx

@@ -0,0 +1,161 @@
+import { renderHook } from '@testing-library/react';
+import { Temporality } from 'api/metricsExplorer/getMetricDetails';
+import { MetricType } from 'api/metricsExplorer/getMetricsList';
+import { initialQueriesMap } from 'constants/queryBuilder';
+import * as useGetMultipleMetricsHook from 'hooks/metricsExplorer/useGetMultipleMetrics';
+import { UseQueryResult } from 'react-query';
+import { SuccessResponseV2 } from 'types/api';
+import {
+	MetricMetadata,
+	MetricMetadataResponse,
+} from 'types/api/metricsExplorer/v2/getMetricMetadata';
+import { BaseAutocompleteData } from 'types/api/queryBuilder/queryAutocompleteResponse';
+import {
+	IBuilderFormula,
+	IBuilderQuery,
+	Query,
+} from 'types/api/queryBuilder/queryBuilderData';
+import { DataSource } from 'types/common/queryBuilder';
+
+import {
+	getMetricUnits,
+	splitQueryIntoOneChartPerQuery,
+	useGetMetrics,
+} from '../utils';
+
+const MOCK_QUERY_DATA_1: IBuilderQuery = {
+	...initialQueriesMap[DataSource.METRICS].builder.queryData[0],
+	aggregateAttribute: {
+		...(initialQueriesMap[DataSource.METRICS].builder.queryData[0]
+			.aggregateAttribute as BaseAutocompleteData),
+		key: 'metric1',
+	},
+};
+
+const MOCK_QUERY_DATA_2: IBuilderQuery = {
+	...initialQueriesMap[DataSource.METRICS].builder.queryData[0],
+	aggregateAttribute: {
+		...(initialQueriesMap[DataSource.METRICS].builder.queryData[0]
+			.aggregateAttribute as BaseAutocompleteData),
+		key: 'metric2',
+	},
+};
+const MOCK_FORMULA_DATA: IBuilderFormula = {
+	expression: '1 + 1',
+	disabled: false,
+	queryName: 'Mock Formula',
+	legend: 'Mock Legend',
+};
+
+const MOCK_QUERY_WITH_MULTIPLE_QUERY_DATA: Query = {
+	...initialQueriesMap[DataSource.METRICS],
+	builder: {
+		...initialQueriesMap[DataSource.METRICS].builder,
+		queryData: [MOCK_QUERY_DATA_1, MOCK_QUERY_DATA_2],
+		queryFormulas: [MOCK_FORMULA_DATA, MOCK_FORMULA_DATA],
+	},
+};
+
+describe('splitQueryIntoOneChartPerQuery', () => {
+	it('should split a query with multiple queryData to multiple distinct queries, each with a single queryData', () => {
+		const result = splitQueryIntoOneChartPerQuery(
+			MOCK_QUERY_WITH_MULTIPLE_QUERY_DATA,
+			['metric1', 'metric2'],
+			[undefined, 'unit2'],
+		);
+		expect(result).toHaveLength(4);
+		// Verify query 1 has the correct data
+		expect(result[0].builder.queryData).toHaveLength(1);
+		expect(result[0].builder.queryData[0]).toEqual(MOCK_QUERY_DATA_1);
+		expect(result[0].builder.queryFormulas).toHaveLength(0);
+		expect(result[0].unit).toBeUndefined();
+		// Verify query 2 has the correct data
+		expect(result[1].builder.queryData).toHaveLength(1);
+		expect(result[1].builder.queryData[0]).toEqual(MOCK_QUERY_DATA_2);
+		expect(result[1].builder.queryFormulas).toHaveLength(0);
+		expect(result[1].unit).toBe('unit2');
+		// Verify query 3 has the correct data
+		expect(result[2].builder.queryFormulas).toHaveLength(1);
+		expect(result[2].builder.queryFormulas[0]).toEqual(MOCK_FORMULA_DATA);
+		expect(result[2].builder.queryData).toHaveLength(2); // 2 disabled queries
+		expect(result[2].builder.queryData[0].disabled).toBe(true);
+		expect(result[2].builder.queryData[1].disabled).toBe(true);
+		expect(result[2].unit).toBeUndefined();
+		// Verify query 4 has the correct data
+		expect(result[3].builder.queryFormulas).toHaveLength(1);
+		expect(result[3].builder.queryFormulas[0]).toEqual(MOCK_FORMULA_DATA);
+		expect(result[3].builder.queryData).toHaveLength(2); // 2 disabled queries
+		expect(result[3].builder.queryData[0].disabled).toBe(true);
+		expect(result[3].builder.queryData[1].disabled).toBe(true);
+		expect(result[3].unit).toBeUndefined();
+	});
+});
+
+const MOCK_METRIC_METADATA: MetricMetadata = {
+	description: 'Metric 1 description',
+	unit: 'unit1',
+	type: MetricType.GAUGE,
+	temporality: Temporality.DELTA,
+	isMonotonic: true,
+};
+
+describe('useGetMetrics', () => {
+	beforeEach(() => {
+		jest
+			.spyOn(useGetMultipleMetricsHook, 'useGetMultipleMetrics')
+			.mockReturnValue([
+				({
+					isLoading: false,
+					isError: false,
+					data: {
+						httpStatusCode: 200,
+						data: {
+							status: 'success',
+							data: MOCK_METRIC_METADATA,
+						},
+					},
+				} as Partial<
+					UseQueryResult<SuccessResponseV2<MetricMetadataResponse>, Error>
+				>) as UseQueryResult<SuccessResponseV2<MetricMetadataResponse>, Error>,
+			]);
+	});
+
+	it('should return the correct metrics data', () => {
+		const { result } = renderHook(() => useGetMetrics(['metric1']));
+		expect(result.current.metrics).toHaveLength(1);
+		expect(result.current.metrics[0]).toBeDefined();
+		expect(result.current.metrics[0]).toEqual(MOCK_METRIC_METADATA);
+		expect(result.current.isLoading).toBe(false);
+		expect(result.current.isError).toBe(false);
+	});
+
+	it('should return array of undefined values of correct length when metrics data is not yet loaded', () => {
+		jest
+			.spyOn(useGetMultipleMetricsHook, 'useGetMultipleMetrics')
+			.mockReturnValue([
+				({
+					isLoading: true,
+					isError: false,
+				} as Partial<
+					UseQueryResult<SuccessResponseV2<MetricMetadataResponse>, Error>
+				>) as UseQueryResult<SuccessResponseV2<MetricMetadataResponse>, Error>,
+			]);
+		const { result } = renderHook(() => useGetMetrics(['metric1']));
+		expect(result.current.metrics).toHaveLength(1);
+		expect(result.current.metrics[0]).toBeUndefined();
+	});
+});
+
+describe('getMetricUnits', () => {
+	it('should return the same unit for units that are not known to the universal unit mapper', () => {
+		const result = getMetricUnits([MOCK_METRIC_METADATA]);
+		expect(result).toHaveLength(1);
+		expect(result[0]).toEqual(MOCK_METRIC_METADATA.unit);
+	});
+
+	it('should return universal unit for units that are known to the universal unit mapper', () => {
+		const result = getMetricUnits([{ ...MOCK_METRIC_METADATA, unit: 'seconds' }]);
+		expect(result).toHaveLength(1);
+		expect(result[0]).toBe('s');
+	});
+});

frontend/src/container/MetricsExplorer/Explorer/types.ts

@@ -3,6 +3,7 @@ import { Dispatch, SetStateAction } from 'react';
 import { UseQueryResult } from 'react-query';
 import { SuccessResponse, Warning } from 'types/api';
 import { MetricRangePayloadProps } from 'types/api/metrics/getQueryRange';
+import { MetricMetadata } from 'types/api/metricsExplorer/v2/getMetricMetadata';
 
 export enum ExplorerTabs {
 	TIME_SERIES = 'time-series',
@@ -12,6 +13,16 @@ export enum ExplorerTabs {
 export interface TimeSeriesProps {
 	showOneChartPerQuery: boolean;
 	setWarning: Dispatch<SetStateAction<Warning | undefined>>;
+	areAllMetricUnitsSame: boolean;
+	isMetricUnitsLoading: boolean;
+	isMetricUnitsError: boolean;
+	metricUnits: (string | undefined)[];
+	metricNames: string[];
+	metrics: (MetricMetadata | undefined)[];
+	handleOpenMetricDetails: (metricName: string) => void;
+	yAxisUnit: string | undefined;
+	setYAxisUnit: (unit: string) => void;
+	showYAxisUnitSelector: boolean;
 }
 
 export interface RelatedMetricsProps {

frontend/src/container/MetricsExplorer/Explorer/utils.tsx

@@ -1,20 +1,40 @@
+import { mapMetricUnitToUniversalUnit } from 'components/YAxisUnitSelector/utils';
+import { useGetMultipleMetrics } from 'hooks/metricsExplorer/useGetMultipleMetrics';
+import { MetricMetadata } from 'types/api/metricsExplorer/v2/getMetricMetadata';
 import { Query } from 'types/api/queryBuilder/queryBuilderData';
 import { v4 as uuid } from 'uuid';
 
-export const splitQueryIntoOneChartPerQuery = (query: Query): Query[] => {
+/**
+ * Split a query with multiple queryData to multiple distinct queries, each with a single queryData.
+ * @param query - The query to split
+ * @param units - The units of the metrics, can be undefined if the metric has no unit
+ * @returns The split queries
+ */
+export const splitQueryIntoOneChartPerQuery = (
+	query: Query,
+	metricNames: string[],
+	units: (string | undefined)[],
+): Query[] => {
 	const queries: Query[] = [];
 
 	query.builder.queryData.forEach((currentQuery) => {
-		const newQuery = {
-			...query,
-			id: uuid(),
-			builder: {
-				...query.builder,
-				queryData: [currentQuery],
-				queryFormulas: [],
-			},
-		};
-		queries.push(newQuery);
+		if (currentQuery.aggregateAttribute?.key) {
+			const metricIndex = metricNames.indexOf(
+				currentQuery.aggregateAttribute?.key,
+			);
+			const unit = metricIndex >= 0 ? units[metricIndex] : undefined;
+			const newQuery = {
+				...query,
+				id: uuid(),
+				builder: {
+					...query.builder,
+					queryData: [currentQuery],
+					queryFormulas: [],
+				},
+				unit,
+			};
+			queries.push(newQuery);
+		}
 	});
 
 	query.builder.queryFormulas.forEach((currentFormula) => {
@@ -35,3 +55,43 @@ export const splitQueryIntoOneChartPerQuery = (query: Query): Query[] => {
 
 	return queries;
 };
+
+/**
+ * Hook to get data for multiple metrics with a synchronous loading and error state
+ * @param metricNames - The names of the metrics to get
+ * @param isEnabled - Whether the hook is enabled
+ * @returns The loading state, the metrics data, and the error state
+ */
+export function useGetMetrics(
+	metricNames: string[],
+	isEnabled = true,
+): {
+	isLoading: boolean;
+	isError: boolean;
+	metrics: (MetricMetadata | undefined)[];
+} {
+	const metricsData = useGetMultipleMetrics(metricNames, {
+		enabled: metricNames.length > 0 && isEnabled,
+	});
+	return {
+		isLoading: metricsData.some((metric) => metric.isLoading),
+		metrics: metricsData
+			.map((metric) => metric.data?.data)
+			.map((data) => data?.data),
+		isError: metricsData.some((metric) => metric.isError),
+	};
+}
+
+/**
+ * To get the units of the metrics in the universal unit standard.
+ * If the unit is not known to the universal unit mapper, it will return the unit as is.
+ * @param metrics - The metrics to get the units for
+ * @returns The units of the metrics, can be undefined if the metric has no unit
+ */
+export function getMetricUnits(
+	metrics: (MetricMetadata | undefined)[],
+): (string | undefined)[] {
+	return metrics
+		.map((metric) => metric?.unit)
+		.map((unit) => mapMetricUnitToUniversalUnit(unit) || undefined);
+}

frontend/src/container/MetricsExplorer/MetricDetails/MetricDetails.tsx

@@ -131,8 +131,8 @@ function MetricDetails({
 						>
 							Open in Explorer
 						</Button>
-						{/* Show the based on the feature flag. Will remove before releasing the feature */}
-						{showInspectFeature && (
+						{/* Show the inspect button if the metric type is GAUGE */}
+						{showInspectFeature && openInspectModal && (
 							<Button
 								className="inspect-metrics-button"
 								aria-label="Inspect Metric"

frontend/src/container/MetricsExplorer/MetricDetails/types.ts

@@ -11,7 +11,7 @@ export interface MetricDetailsProps {
 	isOpen: boolean;
 	metricName: string | null;
 	isModalTimeSelection: boolean;
-	openInspectModal: (metricName: string) => void;
+	openInspectModal?: (metricName: string) => void;
 }
 
 export interface DashboardsAndAlertsPopoverProps {

frontend/src/container/NewWidget/index.tsx

@@ -370,10 +370,6 @@ function NewWidget({
 	// this has been moved here from the left container
 	const [requestData, setRequestData] = useState<GetQueryResultsProps>(() => {
 		const updatedQuery = cloneDeep(stagedQuery || initialQueriesMap.metrics);
-		if (updatedQuery?.builder?.queryData?.[0]) {
-			updatedQuery.builder.queryData[0].pageSize = 10;
-		}
-
 		if (selectedWidget) {
 			if (selectedGraph === PANEL_TYPES.LIST) {
 				return {
@@ -419,16 +415,12 @@ function NewWidget({
 	useEffect(() => {
 		if (stagedQuery) {
 			setIsLoadingPanelData(false);
-			const updatedStagedQuery = cloneDeep(stagedQuery);
-			if (updatedStagedQuery?.builder?.queryData?.[0]) {
-				updatedStagedQuery.builder.queryData[0].pageSize = 10;
-			}
 			setRequestData((prev) => ({
 				...prev,
 				selectedTime: selectedTime.enum || prev.selectedTime,
 				globalSelectedInterval: customGlobalSelectedInterval,
 				graphType: getGraphType(selectedGraph || selectedWidget.panelTypes),
-				query: updatedStagedQuery,
+				query: stagedQuery,
 				fillGaps: selectedWidget.fillSpans || false,
 				isLogScale: selectedWidget.isLogScale || false,
 				formatForWeb:

frontend/src/container/PanelWrapper/UplotPanelWrapper.tsx

@@ -132,11 +132,20 @@ function UplotPanelWrapper({
 		[selectedGraph, widget?.panelTypes, widget?.stackedBarChart],
 	);
 
-	const chartData = getUPlotChartData(
-		queryResponse?.data?.payload,
-		widget.fillSpans,
-		stackedBarChart,
-		hiddenGraph,
+	const chartData = useMemo(
+		() =>
+			getUPlotChartData(
+				queryResponse?.data?.payload,
+				widget.fillSpans,
+				stackedBarChart,
+				hiddenGraph,
+			),
+		[
+			queryResponse?.data?.payload,
+			widget.fillSpans,
+			stackedBarChart,
+			hiddenGraph,
+		],
 	);
 
 	useEffect(() => {
@@ -293,7 +302,7 @@ function UplotPanelWrapper({
 			)}
 			{isFullViewMode && setGraphVisibility && !stackedBarChart && (
 				<GraphManager
-					data={getUPlotChartData(queryResponse?.data?.payload, widget.fillSpans)}
+					data={chartData}
 					name={widget.id}
 					options={options}
 					yAxisUnit={widget.yAxisUnit}

frontend/src/container/QueryBuilder/QueryBuilder.styles.scss

@@ -206,6 +206,10 @@
 			.ant-select-selector {
 				border-color: var(--bg-vanilla-300);
 				background: var(--bg-vanilla-300);
+
+				.ant-select-selection-item {
+					color: var(--text-ink-400);
+				}
 			}
 
 			.ant-input-number {

frontend/src/container/QueryBuilder/components/SpaceAggregationOptions/SpaceAggregationOptions.tsx

@@ -1,7 +1,5 @@
 import { Select } from 'antd';
 import { ATTRIBUTE_TYPES, PANEL_TYPES } from 'constants/queryBuilder';
-import { useEffect, useState } from 'react';
-import { MetricAggregateOperator } from 'types/common/queryBuilder';
 
 interface SpaceAggregationOptionsProps {
 	panelType: PANEL_TYPES | null;
@@ -22,39 +20,13 @@ export default function SpaceAggregationOptions({
 	operators,
 	qbVersion,
 }: SpaceAggregationOptionsProps): JSX.Element {
-	const placeHolderText =
-		panelType === PANEL_TYPES.VALUE || qbVersion === 'v3' ? 'Sum' : 'Sum By';
-	const [defaultValue, setDefaultValue] = useState(
-		selectedValue || placeHolderText,
-	);
-
-	useEffect(() => {
-		if (!selectedValue) {
-			if (
-				aggregatorAttributeType === ATTRIBUTE_TYPES.HISTOGRAM ||
-				aggregatorAttributeType === ATTRIBUTE_TYPES.EXPONENTIAL_HISTOGRAM
-			) {
-				setDefaultValue(MetricAggregateOperator.P90);
-				onSelect(MetricAggregateOperator.P90);
-			} else if (aggregatorAttributeType === ATTRIBUTE_TYPES.SUM) {
-				setDefaultValue(MetricAggregateOperator.SUM);
-				onSelect(MetricAggregateOperator.SUM);
-			} else if (aggregatorAttributeType === ATTRIBUTE_TYPES.GAUGE) {
-				setDefaultValue(MetricAggregateOperator.AVG);
-				onSelect(MetricAggregateOperator.AVG);
-			}
-		}
-
-		// eslint-disable-next-line react-hooks/exhaustive-deps
-	}, [aggregatorAttributeType]);
-
 	return (
 		<div
 			className="spaceAggregationOptionsContainer"
 			key={aggregatorAttributeType}
 		>
 			<Select
-				defaultValue={defaultValue}
+				defaultValue={selectedValue}
 				style={{ minWidth: '5.625rem' }}
 				disabled={disabled}
 				onChange={onSelect}

frontend/src/container/QueryBuilder/filters/ReduceToFilter/ReduceToFilter.test.tsx

@@ -0,0 +1,88 @@
+import { render, screen } from '@testing-library/react';
+import { MetricType } from 'api/metricsExplorer/getMetricsList';
+import { IBuilderQuery } from 'types/api/queryBuilder/queryBuilderData';
+
+import { ReduceToFilter } from './ReduceToFilter';
+
+const mockOnChange = jest.fn();
+
+function baseQuery(overrides: Partial<IBuilderQuery> = {}): IBuilderQuery {
+	return {
+		dataSource: 'traces',
+		aggregations: [],
+		groupBy: [],
+		orderBy: [],
+		legend: '',
+		limit: null,
+		having: { expression: '' },
+		...overrides,
+	} as IBuilderQuery;
+}
+
+describe('ReduceToFilter', () => {
+	beforeEach(() => {
+		jest.clearAllMocks();
+	});
+
+	it('initializes with default avg when no reduceTo is set', () => {
+		render(<ReduceToFilter query={baseQuery()} onChange={mockOnChange} />);
+
+		expect(screen.getByTestId('reduce-to')).toBeInTheDocument();
+		expect(
+			screen.getByText('Average of values in timeframe'),
+		).toBeInTheDocument();
+	});
+
+	it('initializes from query.aggregations[0].reduceTo', () => {
+		render(
+			<ReduceToFilter
+				query={baseQuery({
+					aggregations: [{ reduceTo: 'sum' } as any],
+					aggregateAttribute: { key: 'test', type: MetricType.SUM },
+				})}
+				onChange={mockOnChange}
+			/>,
+		);
+
+		expect(screen.getByText('Sum of values in timeframe')).toBeInTheDocument();
+	});
+
+	it('initializes from query.reduceTo when aggregations[0].reduceTo is not set', () => {
+		render(
+			<ReduceToFilter
+				query={baseQuery({
+					reduceTo: 'max',
+					aggregateAttribute: { key: 'test', type: MetricType.GAUGE },
+				})}
+				onChange={mockOnChange}
+			/>,
+		);
+
+		expect(screen.getByText('Max of values in timeframe')).toBeInTheDocument();
+	});
+
+	it('updates to sum when aggregateAttribute.type is SUM', async () => {
+		const { rerender } = render(
+			<ReduceToFilter
+				query={baseQuery({
+					aggregateAttribute: { key: 'test', type: MetricType.GAUGE },
+				})}
+				onChange={mockOnChange}
+			/>,
+		);
+
+		rerender(
+			<ReduceToFilter
+				query={baseQuery({
+					aggregateAttribute: { key: 'test2', type: MetricType.SUM },
+				})}
+				onChange={mockOnChange}
+			/>,
+		);
+
+		const reduceToFilterText = (await screen.findByText(
+			'Sum of values in timeframe',
+		)) as HTMLElement;
+		expect(reduceToFilterText).toBeInTheDocument();
+	});
+});

frontend/src/container/QueryBuilder/filters/ReduceToFilter/ReduceToFilter.tsx

@@ -1,6 +1,7 @@
 import { Select } from 'antd';
+import { MetricType } from 'api/metricsExplorer/getMetricsList';
 import { REDUCE_TO_VALUES } from 'constants/queryBuilder';
-import { memo } from 'react';
+import { memo, useEffect, useRef, useState } from 'react';
 import { MetricAggregation } from 'types/api/v5/queryRange';
 // ** Types
 import { ReduceOperators } from 'types/common/queryBuilder';
@@ -12,19 +13,46 @@ export const ReduceToFilter = memo(function ReduceToFilter({
 	query,
 	onChange,
 }: ReduceToFilterProps): JSX.Element {
-	const reduceToValue =
-		(query.aggregations?.[0] as MetricAggregation)?.reduceTo || query.reduceTo;
-
-	const currentValue =
-		REDUCE_TO_VALUES.find((option) => option.value === reduceToValue) ||
-		REDUCE_TO_VALUES[0];
+	const isMounted = useRef<boolean>(false);
+	const [currentValue, setCurrentValue] = useState<
+		SelectOption<ReduceOperators, string>
+	>(REDUCE_TO_VALUES[2]); // default to avg
 
 	const handleChange = (
 		newValue: SelectOption<ReduceOperators, string>,
 	): void => {
+		setCurrentValue(newValue);
 		onChange(newValue.value);
 	};
 
+	useEffect(
+		() => {
+			if (!isMounted.current) {
+				const reduceToValue =
+					(query.aggregations?.[0] as MetricAggregation)?.reduceTo || query.reduceTo;
+
+				setCurrentValue(
+					REDUCE_TO_VALUES.find((option) => option.value === reduceToValue) ||
+						REDUCE_TO_VALUES[2],
+				);
+				isMounted.current = true;
+				return;
+			}
+
+			const aggregationAttributeType = query.aggregateAttribute?.type as
+				| MetricType
+				| undefined;
+
+			if (aggregationAttributeType === MetricType.SUM) {
+				handleChange(REDUCE_TO_VALUES[1]);
+			} else {
+				handleChange(REDUCE_TO_VALUES[2]);
+			}
+		},
+		// eslint-disable-next-line react-hooks/exhaustive-deps
+		[query.aggregateAttribute?.key],
+	);
+
 	return (
 		<Select
 			placeholder="Reduce to"

frontend/src/hooks/metricsExplorer/useGetMultipleMetrics.ts

@@ -0,0 +1,32 @@
+import { getMetricMetadata } from 'api/metricsExplorer/v2/getMetricMetadata';
+import { REACT_QUERY_KEY } from 'constants/reactQueryKeys';
+import { useQueries, UseQueryOptions, UseQueryResult } from 'react-query';
+import { SuccessResponseV2 } from 'types/api';
+import { MetricMetadataResponse } from 'types/api/metricsExplorer/v2/getMetricMetadata';
+
+type QueryResult = UseQueryResult<
+	SuccessResponseV2<MetricMetadataResponse>,
+	Error
+>;
+
+type UseGetMultipleMetrics = (
+	metricNames: string[],
+	options?: UseQueryOptions<SuccessResponseV2<MetricMetadataResponse>, Error>,
+	headers?: Record<string, string>,
+) => QueryResult[];
+
+export const useGetMultipleMetrics: UseGetMultipleMetrics = (
+	metricNames,
+	options,
+	headers,
+) =>
+	useQueries(
+		metricNames.map(
+			(metricName) =>
+				({
+					queryKey: [REACT_QUERY_KEY.GET_METRIC_METADATA, metricName],
+					queryFn: ({ signal }) => getMetricMetadata(metricName, signal, headers),
+					...options,
+				} as UseQueryOptions<SuccessResponseV2<MetricMetadataResponse>, Error>),
+		),
+	);

frontend/src/hooks/metricsExplorer/useUpdateMetricMetadata.ts

@@ -5,7 +5,7 @@ import updateMetricMetadata, {
 import { useMutation, UseMutationResult } from 'react-query';
 import { ErrorResponse, SuccessResponse } from 'types/api';
 
-interface UseUpdateMetricMetadataProps {
+export interface UseUpdateMetricMetadataProps {
 	metricName: string;
 	payload: UpdateMetricMetadataProps;
 }

frontend/src/hooks/queryBuilder/__tests__/useQueryBuilderOperations.test.ts

@@ -188,7 +188,7 @@ describe('useQueryBuilderOperations - Empty Aggregate Attribute Type', () => {
 							timeAggregation: MetricAggregateOperator.RATE,
 							metricName: 'new_sum_metric',
 							temporality: '',
-							spaceAggregation: '',
+							spaceAggregation: MetricAggregateOperator.SUM,
 						},
 					],
 				}),
@@ -239,7 +239,7 @@ describe('useQueryBuilderOperations - Empty Aggregate Attribute Type', () => {
 							timeAggregation: MetricAggregateOperator.RATE,
 							metricName: 'new_sum_metric',
 							temporality: '',
-							spaceAggregation: '',
+							spaceAggregation: MetricAggregateOperator.SUM,
 						},
 					],
 				}),
@@ -315,7 +315,7 @@ describe('useQueryBuilderOperations - Empty Aggregate Attribute Type', () => {
 							timeAggregation: MetricAggregateOperator.AVG,
 							metricName: 'new_gauge',
 							temporality: '',
-							spaceAggregation: '',
+							spaceAggregation: MetricAggregateOperator.AVG,
 						},
 					],
 				}),

frontend/src/hooks/queryBuilder/useQueryBuilderOperations.ts

@@ -317,7 +317,7 @@ export const useQueryOperations: UseQueryOperations = ({
 									timeAggregation: MetricAggregateOperator.RATE,
 									metricName: newQuery.aggregateAttribute?.key || '',
 									temporality: '',
-									spaceAggregation: '',
+									spaceAggregation: MetricAggregateOperator.SUM,
 								},
 							];
 						} else if (newQuery.aggregateAttribute?.type === ATTRIBUTE_TYPES.GAUGE) {
@@ -326,7 +326,20 @@ export const useQueryOperations: UseQueryOperations = ({
 									timeAggregation: MetricAggregateOperator.AVG,
 									metricName: newQuery.aggregateAttribute?.key || '',
 									temporality: '',
-									spaceAggregation: '',
+									spaceAggregation: MetricAggregateOperator.AVG,
+								},
+							];
+						} else if (
+							newQuery.aggregateAttribute?.type === ATTRIBUTE_TYPES.HISTOGRAM ||
+							newQuery.aggregateAttribute?.type ===
+								ATTRIBUTE_TYPES.EXPONENTIAL_HISTOGRAM
+						) {
+							newQuery.aggregations = [
+								{
+									timeAggregation: '',
+									metricName: newQuery.aggregateAttribute?.key || '',
+									temporality: '',
+									spaceAggregation: MetricAggregateOperator.P90,
 								},
 							];
 						} else {

frontend/src/hooks/querySuggestions/useGetQueryKeyValueSuggestions.ts

@@ -1,8 +1,6 @@
 import { getValueSuggestions } from 'api/querySuggestions/getValueSuggestion';
 import { AxiosError, AxiosResponse } from 'axios';
 import { useQuery, UseQueryOptions, UseQueryResult } from 'react-query';
-import { ErrorResponse } from 'react-router-dom-v5-compat';
-import { SuccessResponse } from 'types/api';
 import { QueryKeyValueSuggestionsResponseProps } from 'types/api/querySuggestions/types';
 
 export const useGetQueryKeyValueSuggestions = ({
@@ -11,13 +9,15 @@ export const useGetQueryKeyValueSuggestions = ({
 	searchText,
 	signalSource,
 	metricName,
+	options,
 }: {
 	key: string;
 	signal: 'traces' | 'logs' | 'metrics';
 	searchText?: string;
 	signalSource?: 'meter' | '';
 	options?: UseQueryOptions<
-		SuccessResponse<QueryKeyValueSuggestionsResponseProps> | ErrorResponse
+		AxiosResponse<QueryKeyValueSuggestionsResponseProps>,
+		AxiosError
 	>;
 	metricName?: string;
 }): UseQueryResult<
@@ -41,4 +41,5 @@ export const useGetQueryKeyValueSuggestions = ({
 				signalSource: signalSource as 'meter' | '',
 				metricName: metricName || '',
 			}),
+		...options,
 	});

frontend/src/hooks/useGetYAxisUnit.test.ts

@@ -0,0 +1,238 @@
+import { renderHook } from '@testing-library/react';
+import { UniversalYAxisUnit } from 'components/YAxisUnitSelector/types';
+import { useGetMetrics } from 'container/MetricsExplorer/Explorer/utils';
+import { MetricMetadata } from 'types/api/metricsExplorer/v2/getMetricMetadata';
+import { Query } from 'types/api/queryBuilder/queryBuilderData';
+import { EQueryType } from 'types/common/dashboard';
+import { DataSource, QueryBuilderContextType } from 'types/common/queryBuilder';
+
+import { useQueryBuilder } from './queryBuilder/useQueryBuilder';
+import useGetYAxisUnit from './useGetYAxisUnit';
+
+jest.mock('./queryBuilder/useQueryBuilder');
+jest.mock('container/MetricsExplorer/Explorer/utils', () => ({
+	...jest.requireActual('container/MetricsExplorer/Explorer/utils'),
+	useGetMetrics: jest.fn(),
+}));
+
+const mockUseQueryBuilder = useQueryBuilder as jest.MockedFunction<
+	typeof useQueryBuilder
+>;
+const mockUseGetMetrics = useGetMetrics as jest.MockedFunction<
+	typeof useGetMetrics
+>;
+
+const MOCK_METRIC_1 = {
+	unit: UniversalYAxisUnit.BYTES,
+} as MetricMetadata;
+const MOCK_METRIC_2 = {
+	unit: UniversalYAxisUnit.SECONDS,
+} as MetricMetadata;
+const MOCK_METRIC_3 = {
+	unit: '',
+} as MetricMetadata;
+
+function createMockCurrentQuery(
+	queryType: EQueryType,
+	queryData: Query['builder']['queryData'] = [],
+): Query {
+	return {
+		queryType,
+		promql: [],
+		builder: {
+			queryData,
+			queryFormulas: [],
+			queryTraceOperator: [],
+		},
+		clickhouse_sql: [],
+		id: 'test-id',
+	};
+}
+
+describe('useGetYAxisUnit', () => {
+	beforeEach(() => {
+		jest.clearAllMocks();
+		mockUseGetMetrics.mockReturnValue({
+			isLoading: false,
+			isError: false,
+			metrics: [],
+		});
+		mockUseQueryBuilder.mockReturnValue(({
+			currentQuery: undefined,
+		} as Partial<QueryBuilderContextType>) as QueryBuilderContextType);
+	});
+
+	it('should return undefined yAxisUnit and not call useGetMetrics when currentQuery is null', async () => {
+		const { result } = renderHook(() => useGetYAxisUnit());
+
+		expect(result.current.yAxisUnit).toBeUndefined();
+		expect(result.current.isLoading).toBe(false);
+		expect(result.current.isError).toBe(false);
+		expect(mockUseGetMetrics).toHaveBeenCalledWith([], false);
+	});
+
+	it('should return undefined yAxisUnit when queryType is PROM', async () => {
+		const mockCurrentQuery = createMockCurrentQuery(EQueryType.PROM);
+		mockUseQueryBuilder.mockReturnValueOnce(({
+			currentQuery: mockCurrentQuery,
+		} as Partial<QueryBuilderContextType>) as QueryBuilderContextType);
+
+		const { result } = renderHook(() => useGetYAxisUnit());
+
+		expect(result.current.yAxisUnit).toBeUndefined();
+		expect(mockUseGetMetrics).toHaveBeenCalledWith([], false);
+	});
+
+	it('should return undefined yAxisUnit when queryType is CLICKHOUSE', async () => {
+		const mockCurrentQuery = createMockCurrentQuery(EQueryType.CLICKHOUSE);
+		mockUseQueryBuilder.mockReturnValueOnce(({
+			currentQuery: mockCurrentQuery,
+		} as Partial<QueryBuilderContextType>) as QueryBuilderContextType);
+
+		const { result } = renderHook(() => useGetYAxisUnit());
+
+		expect(result.current.yAxisUnit).toBeUndefined();
+		expect(result.current.isLoading).toBe(false);
+		expect(result.current.isError).toBe(false);
+		expect(mockUseGetMetrics).toHaveBeenCalledWith([], false);
+	});
+
+	it('should return undefined yAxisUnit when dataSource is TRACES', async () => {
+		const mockCurrentQuery = createMockCurrentQuery(EQueryType.QUERY_BUILDER, [
+			{
+				dataSource: DataSource.TRACES,
+				aggregateAttribute: { key: 'trace_metric' },
+			} as Query['builder']['queryData'][0],
+		]);
+		mockUseQueryBuilder.mockReturnValueOnce(({
+			currentQuery: mockCurrentQuery,
+		} as Partial<QueryBuilderContextType>) as QueryBuilderContextType);
+
+		const { result } = renderHook(() => useGetYAxisUnit());
+
+		expect(result.current.yAxisUnit).toBeUndefined();
+		expect(result.current.isLoading).toBe(false);
+		expect(result.current.isError).toBe(false);
+		expect(mockUseGetMetrics).toHaveBeenCalledWith([], false);
+	});
+
+	it('should return undefined yAxisUnit when dataSource is LOGS', async () => {
+		const mockCurrentQuery = createMockCurrentQuery(EQueryType.QUERY_BUILDER, [
+			{
+				dataSource: DataSource.LOGS,
+				aggregateAttribute: { key: 'log_metric' },
+			} as Query['builder']['queryData'][number],
+		]);
+		mockUseQueryBuilder.mockReturnValueOnce(({
+			currentQuery: mockCurrentQuery,
+		} as Partial<QueryBuilderContextType>) as QueryBuilderContextType);
+
+		const { result } = renderHook(() => useGetYAxisUnit());
+
+		expect(result.current.yAxisUnit).toBeUndefined();
+		expect(result.current.isLoading).toBe(false);
+		expect(result.current.isError).toBe(false);
+		expect(mockUseGetMetrics).toHaveBeenCalledWith([], false);
+	});
+
+	it('should extract all metric names from queryData when no selected query name is provided', () => {
+		const mockCurrentQuery = createMockCurrentQuery(EQueryType.QUERY_BUILDER, [
+			{
+				dataSource: DataSource.METRICS,
+				aggregateAttribute: { key: 'metric1' },
+				queryName: 'query1',
+			} as Query['builder']['queryData'][number],
+			{
+				dataSource: DataSource.METRICS,
+				aggregateAttribute: { key: 'metric2' },
+				queryName: 'query2',
+			} as Query['builder']['queryData'][number],
+		]);
+
+		mockUseQueryBuilder.mockReturnValueOnce(({
+			stagedQuery: mockCurrentQuery,
+		} as Partial<QueryBuilderContextType>) as QueryBuilderContextType);
+
+		renderHook(() => useGetYAxisUnit());
+
+		expect(mockUseGetMetrics).toHaveBeenCalledWith(['metric1', 'metric2'], true);
+	});
+
+	it('should extract metric name for the selected query only when one is provided', () => {
+		const mockCurrentQuery = createMockCurrentQuery(EQueryType.QUERY_BUILDER, [
+			{
+				dataSource: DataSource.METRICS,
+				aggregateAttribute: { key: 'metric1' },
+				queryName: 'query1',
+			} as Query['builder']['queryData'][number],
+			{
+				dataSource: DataSource.METRICS,
+				aggregateAttribute: { key: 'metric2' },
+				queryName: 'query2',
+			} as Query['builder']['queryData'][number],
+		]);
+		mockUseQueryBuilder.mockReturnValueOnce(({
+			stagedQuery: mockCurrentQuery,
+		} as Partial<QueryBuilderContextType>) as QueryBuilderContextType);
+
+		renderHook(() => useGetYAxisUnit('query2'));
+
+		expect(mockUseGetMetrics).toHaveBeenCalledWith(['metric2'], true);
+	});
+
+	it('should return the unit when there is a single metric with a non-empty unit', async () => {
+		mockUseGetMetrics.mockReturnValue({
+			isLoading: false,
+			isError: false,
+			metrics: [MOCK_METRIC_1],
+		});
+
+		const { result } = renderHook(() => useGetYAxisUnit());
+
+		expect(result.current.yAxisUnit).toBe(UniversalYAxisUnit.BYTES);
+		expect(result.current.isLoading).toBe(false);
+		expect(result.current.isError).toBe(false);
+	});
+
+	it('should return undefined when there is a single metric with no unit', async () => {
+		mockUseGetMetrics.mockReturnValue({
+			isLoading: false,
+			isError: false,
+			metrics: [MOCK_METRIC_3],
+		});
+
+		const { result } = renderHook(() => useGetYAxisUnit());
+
+		expect(result.current.yAxisUnit).toBeUndefined();
+		expect(result.current.isLoading).toBe(false);
+		expect(result.current.isError).toBe(false);
+	});
+
+	it('should return the unit when all metrics have the same non-empty unit', async () => {
+		mockUseGetMetrics.mockReturnValue({
+			isLoading: false,
+			isError: false,
+			metrics: [MOCK_METRIC_1, MOCK_METRIC_1],
+		});
+
+		const { result } = renderHook(() => useGetYAxisUnit());
+
+		expect(result.current.yAxisUnit).toBe(UniversalYAxisUnit.BYTES);
+		expect(result.current.isLoading).toBe(false);
+		expect(result.current.isError).toBe(false);
+	});
+
+	it('should return undefined when metrics have different units', async () => {
+		mockUseGetMetrics.mockReturnValueOnce({
+			isLoading: false,
+			isError: false,
+			metrics: [MOCK_METRIC_1, MOCK_METRIC_2],
+		});
+
+		const { result } = renderHook(() => useGetYAxisUnit());
+
+		expect(result.current.yAxisUnit).toBeUndefined();
+		expect(result.current.isLoading).toBe(false);
+		expect(result.current.isError).toBe(false);
+	});
+});

frontend/src/hooks/useGetYAxisUnit.ts

@@ -0,0 +1,108 @@
+import {
+	getMetricUnits,
+	useGetMetrics,
+} from 'container/MetricsExplorer/Explorer/utils';
+import { useEffect, useMemo, useState } from 'react';
+import { EQueryType } from 'types/common/dashboard';
+import { DataSource } from 'types/common/queryBuilder';
+
+import { useQueryBuilder } from './queryBuilder/useQueryBuilder';
+
+interface UseGetYAxisUnitResult {
+	yAxisUnit: string | undefined;
+	isLoading: boolean;
+	isError: boolean;
+}
+
+/**
+ * Hook to get the y-axis unit for a given metrics-based query.
+ * @param selectedQueryName - The name of the query to get the y-axis unit for.
+ * @param params.enabled - Active state of the hook.
+ * @returns `{ yAxisUnit, isLoading, isError }` The y-axis unit, loading state, and error state
+ */
+function useGetYAxisUnit(
+	selectedQueryName?: string,
+	params: {
+		enabled?: boolean;
+	} = {
+		enabled: true,
+	},
+): UseGetYAxisUnitResult {
+	const { stagedQuery } = useQueryBuilder();
+	const [yAxisUnit, setYAxisUnit] = useState<string | undefined>();
+
+	const metricNames: string[] | null = useMemo(() => {
+		// If the query type is not QUERY_BUILDER, return null
+		if (stagedQuery?.queryType !== EQueryType.QUERY_BUILDER) {
+			return null;
+		}
+		// If the data source is not METRICS, return null
+		const dataSource = stagedQuery?.builder?.queryData?.[0]?.dataSource;
+		if (dataSource !== DataSource.METRICS) {
+			return null;
+		}
+		const currentMetricNames: string[] = [];
+		// If a selected query name is provided, return the metric name for that query only
+		if (selectedQueryName) {
+			stagedQuery?.builder?.queryData?.forEach((query) => {
+				if (
+					query.queryName === selectedQueryName &&
+					query.aggregateAttribute?.key
+				) {
+					currentMetricNames.push(query.aggregateAttribute?.key);
+				}
+			});
+			return currentMetricNames.length ? currentMetricNames : null;
+		}
+		// Else, return all metric names
+		stagedQuery?.builder?.queryData?.forEach((query) => {
+			if (query.aggregateAttribute?.key) {
+				currentMetricNames.push(query.aggregateAttribute?.key);
+			}
+		});
+		return currentMetricNames.length ? currentMetricNames : null;
+	}, [
+		selectedQueryName,
+		stagedQuery?.builder?.queryData,
+		stagedQuery?.queryType,
+	]);
+
+	const { metrics, isLoading, isError } = useGetMetrics(
+		metricNames ?? [],
+		!!metricNames && params?.enabled,
+	);
+
+	const units = useMemo(() => getMetricUnits(metrics), [metrics]);
+
+	const areAllMetricUnitsSame = useMemo(
+		() => units.every((unit) => unit === units[0]),
+		[units],
+	);
+
+	useEffect(() => {
+		// If there are no metrics, set the y-axis unit to undefined
+		if (units.length === 0) {
+			setYAxisUnit(undefined);
+			// If there is one metric and it has a non-empty unit, set the y-axis unit to it
+		} else if (units.length === 1 && units[0] !== '') {
+			setYAxisUnit(units[0]);
+			// If all metrics have the same non-empty unit, set the y-axis unit to it
+		} else if (areAllMetricUnitsSame) {
+			if (units[0] !== '') {
+				setYAxisUnit(units[0]);
+			} else {
+				setYAxisUnit(undefined);
+			}
+			// If there is more than one metric and they have different units, set the y-axis unit to undefined
+		} else if (units.length > 1 && !areAllMetricUnitsSame) {
+			setYAxisUnit(undefined);
+			// If there is one metric and it has an empty unit, set the y-axis unit to undefined
+		} else if (units.length === 1 && units[0] === '') {
+			setYAxisUnit(undefined);
+		}
+	}, [units, areAllMetricUnitsSame]);
+
+	return { yAxisUnit, isLoading, isError };
+}
+
+export default useGetYAxisUnit;

frontend/src/lib/uPlotLib/utils/getUplotChartData.ts

@@ -1,6 +1,6 @@
 import { themeColors } from 'constants/theme';
 import getLabelName from 'lib/getLabelName';
-import { cloneDeep, isUndefined } from 'lodash-es';
+import { isUndefined } from 'lodash-es';
 import { MetricRangePayloadProps } from 'types/api/metrics/getQueryRange';
 import { QueryData } from 'types/api/widgets/getQuery';
 
@@ -8,7 +8,7 @@ import { normalizePlotValue } from './dataUtils';
 import { generateColor } from './generateColor';
 
 function getXAxisTimestamps(seriesList: QueryData[]): number[] {
-	const timestamps = new Set();
+	const timestamps = new Set<number>();
 
 	seriesList.forEach((series: { values?: [number, string][] }) => {
 		if (series?.values) {
@@ -18,54 +18,71 @@ function getXAxisTimestamps(seriesList: QueryData[]): number[] {
 		}
 	});
 
-	const timestampsArr: number[] | unknown[] = Array.from(timestamps) || [];
-	// eslint-disable-next-line @typescript-eslint/ban-ts-comment
-	// @ts-ignore
-	return timestampsArr.sort((a, b) => a - b);
+	const timestampsArr = Array.from(timestamps);
+	timestampsArr.sort((a, b) => a - b);
+
+	return timestampsArr;
 }
 
-function fillMissingXAxisTimestamps(timestampArr: number[], data: any[]): any {
+// eslint-disable-next-line sonarjs/cognitive-complexity
+function fillMissingXAxisTimestamps(
+	timestampArr: number[],
+	data: Array<{ values?: [number, string][] }>,
+): (number | null)[][] {
 	// Generate a set of all timestamps in the range
 	const allTimestampsSet = new Set(timestampArr);
-	const processedData = cloneDeep(data);
+	const result: (number | null)[][] = [];
 
-	// Fill missing timestamps with null values
-	processedData.forEach((entry: { values: (number | null)[][] }) => {
-		const existingTimestamps = new Set(
-			(entry?.values ?? []).map((value) => value[0]),
-		);
+	// Process each series entry
+	for (let i = 0; i < data.length; i++) {
+		const entry = data[i];
+		if (!entry?.values) {
+			result.push([]);
+		} else {
+			// Build Set of existing timestamps directly (avoid intermediate array)
+			const existingTimestamps = new Set<number>();
+			const valuesMap = new Map<number, number | null>();
 
-		const missingTimestamps = Array.from(allTimestampsSet).filter(
-			(timestamp) => !existingTimestamps.has(timestamp),
-		);
+			for (let j = 0; j < entry.values.length; j++) {
+				const [timestamp, value] = entry.values[j];
+				existingTimestamps.add(timestamp);
+				valuesMap.set(timestamp, normalizePlotValue(value));
+			}
 
-		missingTimestamps.forEach((timestamp) => {
-			const value = null;
+			// Find missing timestamps by iterating Set directly (avoid Array.from + filter)
+			const missingTimestamps: number[] = [];
+			const allTimestampsArray = Array.from(allTimestampsSet);
+			for (let k = 0; k < allTimestampsArray.length; k++) {
+				const timestamp = allTimestampsArray[k];
+				if (!existingTimestamps.has(timestamp)) {
+					missingTimestamps.push(timestamp);
+				}
+			}
 
-			entry?.values?.push([timestamp, value]);
-		});
+			// Add missing timestamps to map
+			for (let j = 0; j < missingTimestamps.length; j++) {
+				valuesMap.set(missingTimestamps[j], null);
+			}
 
-		entry?.values?.forEach((v) => {
-			// eslint-disable-next-line no-param-reassign
-			v[1] = normalizePlotValue(v[1]);
-		});
+			// Build sorted array of values
+			const sortedTimestamps = Array.from(valuesMap.keys()).sort((a, b) => a - b);
+			const yValues = sortedTimestamps.map((timestamp) => {
+				const value = valuesMap.get(timestamp);
+				return value !== undefined ? value : null;
+			});
+			result.push(yValues);
+		}
+	}
 
-		// eslint-disable-next-line @typescript-eslint/ban-ts-comment
-		// @ts-ignore
-		entry?.values?.sort((a, b) => a[0] - b[0]);
-	});
-
-	return processedData.map((entry: { values: [number, string][] }) =>
-		entry?.values?.map((value) => value[1]),
-	);
+	return result;
 }
 
-function getStackedSeries(val: any): any {
-	const series = cloneDeep(val) || [];
+function getStackedSeries(val: (number | null)[][]): (number | null)[][] {
+	const series = val ? val.map((row: (number | null)[]) => [...row]) : [];
 
 	for (let i = series.length - 2; i >= 0; i--) {
 		for (let j = 0; j < series[i].length; j++) {
-			series[i][j] += series[i + 1][j];
+			series[i][j] = (series[i][j] || 0) + (series[i + 1][j] || 0);
 		}
 	}
 
@@ -110,6 +127,7 @@ const processAnomalyDetectionData = (
 		queryIndex < anomalyDetectionData.length;
 		queryIndex++
 	) {
+		const queryData = anomalyDetectionData[queryIndex];
 		const {
 			series,
 			predictedSeries,
@@ -117,7 +135,7 @@ const processAnomalyDetectionData = (
 			lowerBoundSeries,
 			queryName,
 			legend,
-		} = anomalyDetectionData[queryIndex];
+		} = queryData;
 
 		for (let index = 0; index < series?.length; index++) {
 			const label = getLabelName(
@@ -129,14 +147,30 @@ const processAnomalyDetectionData = (
 			const objKey =
 				anomalyDetectionData.length > 1 ? `${queryName}-${label}` : label;
 
+			// Single iteration instead of 5 separate map operations
+			const { values: seriesValues } = series[index];
+			const { values: predictedValues } = predictedSeries[index];
+			const { values: upperBoundValues } = upperBoundSeries[index];
+			const { values: lowerBoundValues } = lowerBoundSeries[index];
+			// eslint-disable-next-line prefer-destructuring
+			const length = seriesValues.length;
+
+			const timestamps: number[] = new Array(length);
+			const values: number[] = new Array(length);
+			const predicted: number[] = new Array(length);
+			const upperBound: number[] = new Array(length);
+			const lowerBound: number[] = new Array(length);
+
+			for (let i = 0; i < length; i++) {
+				timestamps[i] = seriesValues[i].timestamp / 1000;
+				values[i] = seriesValues[i].value;
+				predicted[i] = predictedValues[i].value;
+				upperBound[i] = upperBoundValues[i].value;
+				lowerBound[i] = lowerBoundValues[i].value;
+			}
+
 			processedData[objKey] = {
-				data: [
-					series[index].values.map((v: { timestamp: number }) => v.timestamp / 1000),
-					series[index].values.map((v: { value: number }) => v.value),
-					predictedSeries[index].values.map((v: { value: number }) => v.value),
-					upperBoundSeries[index].values.map((v: { value: number }) => v.value),
-					lowerBoundSeries[index].values.map((v: { value: number }) => v.value),
-				],
+				data: [timestamps, values, predicted, upperBound, lowerBound],
 				color: generateColor(
 					objKey,
 					isDarkMode ? themeColors.chartcolors : themeColors.lightModeColor,
@@ -152,14 +186,7 @@ const processAnomalyDetectionData = (
 export const getUplotChartDataForAnomalyDetection = (
 	apiResponse: MetricRangePayloadProps,
 	isDarkMode: boolean,
-): Record<
-	string,
-	{
-		[x: string]: any;
-		data: number[][];
-		color: string;
-	}
-> => {
+): Record<string, { [x: string]: any; data: number[][]; color: string }> => {
 	const anomalyDetectionData = apiResponse?.data?.newResult?.data?.result;
 	return processAnomalyDetectionData(anomalyDetectionData, isDarkMode);
 };

frontend/src/types/api/metricsExplorer/v2/getMetricMetadata.ts

@@ -0,0 +1,15 @@
+import { Temporality } from 'api/metricsExplorer/getMetricDetails';
+import { MetricType } from 'api/metricsExplorer/getMetricsList';
+
+export interface MetricMetadata {
+	description: string;
+	type: MetricType;
+	unit: string;
+	temporality: Temporality;
+	isMonotonic: boolean;
+}
+
+export interface MetricMetadataResponse {
+	status: string;
+	data: MetricMetadata;
+}

go.mod

@@ -74,12 +74,12 @@ require (
 	go.opentelemetry.io/otel/trace v1.38.0
 	go.uber.org/multierr v1.11.0
 	go.uber.org/zap v1.27.0
-	golang.org/x/crypto v0.41.0
+	golang.org/x/crypto v0.46.0
 	golang.org/x/exp v0.0.0-20250620022241-b7579e27df2b
-	golang.org/x/net v0.43.0
+	golang.org/x/net v0.47.0
 	golang.org/x/oauth2 v0.30.0
-	golang.org/x/sync v0.17.0
-	golang.org/x/text v0.28.0
+	golang.org/x/sync v0.19.0
+	golang.org/x/text v0.32.0
 	google.golang.org/protobuf v1.36.9
 	gopkg.in/yaml.v2 v2.4.0
 	gopkg.in/yaml.v3 v3.0.1
@@ -103,6 +103,7 @@ require (
 	go.opentelemetry.io/collector/config/configretry v1.34.0 // indirect
 	go.yaml.in/yaml/v2 v2.4.2 // indirect
 	golang.org/x/arch v0.0.0-20210923205945-b76863e36670 // indirect
+	golang.org/x/tools/godoc v0.1.0-deprecated // indirect
 	modernc.org/libc v1.66.10 // indirect
 	modernc.org/mathutil v1.7.1 // indirect
 	modernc.org/memory v1.11.0 // indirect
@@ -223,6 +224,7 @@ require (
 	github.com/oklog/run v1.1.0 // indirect
 	github.com/oklog/ulid v1.3.1 // indirect
 	github.com/oklog/ulid/v2 v2.1.1 // indirect
+	github.com/open-feature/go-sdk v1.17.0
 	github.com/open-telemetry/opentelemetry-collector-contrib/internal/coreinternal v0.128.0 // indirect
 	github.com/open-telemetry/opentelemetry-collector-contrib/internal/exp/metrics v0.128.0 // indirect
 	github.com/open-telemetry/opentelemetry-collector-contrib/pkg/pdatautil v0.128.0 // indirect
@@ -336,10 +338,10 @@ require (
 	go.uber.org/atomic v1.11.0 // indirect
 	go.uber.org/mock v0.6.0 // indirect
 	go.yaml.in/yaml/v3 v3.0.4 // indirect
-	golang.org/x/mod v0.27.0 // indirect
-	golang.org/x/sys v0.36.0 // indirect
+	golang.org/x/mod v0.30.0 // indirect
+	golang.org/x/sys v0.39.0 // indirect
 	golang.org/x/time v0.11.0 // indirect
-	golang.org/x/tools v0.36.0 // indirect
+	golang.org/x/tools v0.39.0 // indirect
 	gonum.org/v1/gonum v0.16.0 // indirect
 	google.golang.org/api v0.236.0 // indirect
 	google.golang.org/genproto/googleapis/api v0.0.0-20250825161204-c5933d9347a5 // indirect

go.sum

@@ -762,6 +762,8 @@ github.com/onsi/ginkgo v1.16.5 h1:8xi0RTUf59SOSfEtZMvwTvXYMzG4gV23XVHOZiXNtnE=
 github.com/onsi/ginkgo v1.16.5/go.mod h1:+E8gABHa3K6zRBolWtd+ROzc/U5bkGt0FwiG042wbpU=
 github.com/onsi/gomega v1.35.1 h1:Cwbd75ZBPxFSuZ6T+rN/WCb/gOc6YgFBXLlZLhC7Ds4=
 github.com/onsi/gomega v1.35.1/go.mod h1:PvZbdDc8J6XJEpDK4HCuRBm8a6Fzp9/DmhC9C7yFlog=
+github.com/open-feature/go-sdk v1.17.0 h1:/OUBBw5d9D61JaNZZxb2Nnr5/EJrEpjtKCTY3rspJQk=
+github.com/open-feature/go-sdk v1.17.0/go.mod h1:lPxPSu1UnZ4E3dCxZi5gV3et2ACi8O8P+zsTGVsDZUw=
 github.com/open-telemetry/opamp-go v0.19.0 h1:8LvQKDwqi+BU3Yy159SU31e2XB0vgnk+PN45pnKilPs=
 github.com/open-telemetry/opamp-go v0.19.0/go.mod h1:9/1G6T5dnJz4cJtoYSr6AX18kHdOxnxxETJPZSHyEUg=
 github.com/open-telemetry/opentelemetry-collector-contrib/extension/storage v0.128.0 h1:T5IE0l1qcIg6dkHui4hHe+qj3VzuMwpnhrUyubyCwO0=
@@ -1282,8 +1284,8 @@ golang.org/x/crypto v0.0.0-20210421170649-83a5a9bb288b/go.mod h1:T9bdIzuCu7OtxOm
 golang.org/x/crypto v0.0.0-20211108221036-ceb1ce70b4fa/go.mod h1:GvvjBRRGRdwPK5ydBHafDWAxML/pGHZbMvKqRZ5+Abc=
 golang.org/x/crypto v0.0.0-20220411220226-7b82a4e95df4/go.mod h1:IxCIyHEi3zRg3s0A5j5BB6A9Jmi73HwBIUl50j+osU4=
 golang.org/x/crypto v0.0.0-20220622213112-05595931fe9d/go.mod h1:IxCIyHEi3zRg3s0A5j5BB6A9Jmi73HwBIUl50j+osU4=
-golang.org/x/crypto v0.41.0 h1:WKYxWedPGCTVVl5+WHSSrOBT0O8lx32+zxmHxijgXp4=
-golang.org/x/crypto v0.41.0/go.mod h1:pO5AFd7FA68rFak7rOAGVuygIISepHftHnr8dr6+sUc=
+golang.org/x/crypto v0.46.0 h1:cKRW/pmt1pKAfetfu+RCEvjvZkA9RimPbh7bhFjGVBU=
+golang.org/x/crypto v0.46.0/go.mod h1:Evb/oLKmMraqjZ2iQTwDwvCtJkczlDuTmdJXoZVzqU0=
 golang.org/x/exp v0.0.0-20190121172915-509febef88a4/go.mod h1:CJ0aWSM057203Lf6IL+f9T1iT9GByDxfZKAQTCR3kQA=
 golang.org/x/exp v0.0.0-20190306152737-a1d7652674e8/go.mod h1:CJ0aWSM057203Lf6IL+f9T1iT9GByDxfZKAQTCR3kQA=
 golang.org/x/exp v0.0.0-20190510132918-efd6b22b2522/go.mod h1:ZjyILWgesfNpC6sMxTJOJm9Kp84zZh5NQWvqDGG3Qr8=
@@ -1321,8 +1323,8 @@ golang.org/x/mod v0.3.0/go.mod h1:s0Qsj1ACt9ePp/hMypM3fl4fZqREWJwdYDEqhRiZZUA=
 golang.org/x/mod v0.4.0/go.mod h1:s0Qsj1ACt9ePp/hMypM3fl4fZqREWJwdYDEqhRiZZUA=
 golang.org/x/mod v0.4.1/go.mod h1:s0Qsj1ACt9ePp/hMypM3fl4fZqREWJwdYDEqhRiZZUA=
 golang.org/x/mod v0.4.2/go.mod h1:s0Qsj1ACt9ePp/hMypM3fl4fZqREWJwdYDEqhRiZZUA=
-golang.org/x/mod v0.27.0 h1:kb+q2PyFnEADO2IEF935ehFUXlWiNjJWtRNgBLSfbxQ=
-golang.org/x/mod v0.27.0/go.mod h1:rWI627Fq0DEoudcK+MBkNkCe0EetEaDSwJJkCcjpazc=
+golang.org/x/mod v0.30.0 h1:fDEXFVZ/fmCKProc/yAXXUijritrDzahmwwefnjoPFk=
+golang.org/x/mod v0.30.0/go.mod h1:lAsf5O2EvJeSFMiBxXDki7sCgAxEUcZHXoXMKT4GJKc=
 golang.org/x/net v0.0.0-20180724234803-3673e40ba225/go.mod h1:mL1N/T3taQHkDXs73rZJwtUhF3w3ftmwwsq0BUmARs4=
 golang.org/x/net v0.0.0-20180826012351-8a410e7b638d/go.mod h1:mL1N/T3taQHkDXs73rZJwtUhF3w3ftmwwsq0BUmARs4=
 golang.org/x/net v0.0.0-20181114220301-adae6a3d119a/go.mod h1:mL1N/T3taQHkDXs73rZJwtUhF3w3ftmwwsq0BUmARs4=
@@ -1371,8 +1373,8 @@ golang.org/x/net v0.0.0-20220325170049-de3da57026de/go.mod h1:CfG3xpIq0wQ8r1q4Su
 golang.org/x/net v0.0.0-20220412020605-290c469a71a5/go.mod h1:CfG3xpIq0wQ8r1q4Su4UZFWDARRcnwPjda9FqA0JpMk=
 golang.org/x/net v0.0.0-20220425223048-2871e0cb64e4/go.mod h1:CfG3xpIq0wQ8r1q4Su4UZFWDARRcnwPjda9FqA0JpMk=
 golang.org/x/net v0.0.0-20220520000938-2e3eb7b945c2/go.mod h1:CfG3xpIq0wQ8r1q4Su4UZFWDARRcnwPjda9FqA0JpMk=
-golang.org/x/net v0.43.0 h1:lat02VYK2j4aLzMzecihNvTlJNQUq316m2Mr9rnM6YE=
-golang.org/x/net v0.43.0/go.mod h1:vhO1fvI4dGsIjh73sWfUVjj3N7CA9WkKJNQm2svM6Jg=
+golang.org/x/net v0.47.0 h1:Mx+4dIFzqraBXUugkia1OOvlD6LemFo1ALMHjrXDOhY=
+golang.org/x/net v0.47.0/go.mod h1:/jNxtkgq5yWUGYkaZGqo27cfGZ1c5Nen03aYrrKpVRU=
 golang.org/x/oauth2 v0.0.0-20180821212333-d2e6202438be/go.mod h1:N/0e6XlmueqKjAGxoOufVs8QHGRruUQn6yWY3a++T0U=
 golang.org/x/oauth2 v0.0.0-20190226205417-e64efc72b421/go.mod h1:gOpvHmFTYa4IltrdGE7lF6nIHvwfUNPOp7c8zoXwtLw=
 golang.org/x/oauth2 v0.0.0-20190604053449-0f29369cfe45/go.mod h1:gOpvHmFTYa4IltrdGE7lF6nIHvwfUNPOp7c8zoXwtLw=
@@ -1407,8 +1409,8 @@ golang.org/x/sync v0.0.0-20201020160332-67f06af15bc9/go.mod h1:RxMgew5VJxzue5/jJ
 golang.org/x/sync v0.0.0-20201207232520-09787c993a3a/go.mod h1:RxMgew5VJxzue5/jJTE5uejpjVlOe/izrB70Jof72aM=
 golang.org/x/sync v0.0.0-20210220032951-036812b2e83c/go.mod h1:RxMgew5VJxzue5/jJTE5uejpjVlOe/izrB70Jof72aM=
 golang.org/x/sync v0.0.0-20220513210516-0976fa681c29/go.mod h1:RxMgew5VJxzue5/jJTE5uejpjVlOe/izrB70Jof72aM=
-golang.org/x/sync v0.17.0 h1:l60nONMj9l5drqw6jlhIELNv9I0A4OFgRsG9k2oT9Ug=
-golang.org/x/sync v0.17.0/go.mod h1:9KTHXmSnoGruLpwFjVSX0lNNA75CykiMECbovNTZqGI=
+golang.org/x/sync v0.19.0 h1:vV+1eWNmZ5geRlYjzm2adRgW2/mcpevXNg50YZtPCE4=
+golang.org/x/sync v0.19.0/go.mod h1:9KTHXmSnoGruLpwFjVSX0lNNA75CykiMECbovNTZqGI=
 golang.org/x/sys v0.0.0-20180823144017-11551d06cbcc/go.mod h1:STP8DvDyc/dI5b8T5hshtkjS+E42TnysNCUPdjciGhY=
 golang.org/x/sys v0.0.0-20180830151530-49385e6e1522/go.mod h1:STP8DvDyc/dI5b8T5hshtkjS+E42TnysNCUPdjciGhY=
 golang.org/x/sys v0.0.0-20180905080454-ebe1bf3edb33/go.mod h1:STP8DvDyc/dI5b8T5hshtkjS+E42TnysNCUPdjciGhY=
@@ -1495,12 +1497,12 @@ golang.org/x/sys v0.0.0-20220502124256-b6088ccd6cba/go.mod h1:oPkhp1MJrh7nUepCBc
 golang.org/x/sys v0.0.0-20220520151302-bc2c85ada10a/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
 golang.org/x/sys v0.1.0/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
 golang.org/x/sys v0.6.0/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
-golang.org/x/sys v0.36.0 h1:KVRy2GtZBrk1cBYA7MKu5bEZFxQk4NIDV6RLVcC8o0k=
-golang.org/x/sys v0.36.0/go.mod h1:OgkHotnGiDImocRcuBABYBEXf8A9a87e/uXjp9XT3ks=
+golang.org/x/sys v0.39.0 h1:CvCKL8MeisomCi6qNZ+wbb0DN9E5AATixKsvNtMoMFk=
+golang.org/x/sys v0.39.0/go.mod h1:OgkHotnGiDImocRcuBABYBEXf8A9a87e/uXjp9XT3ks=
 golang.org/x/term v0.0.0-20201126162022-7de9c90e9dd1/go.mod h1:bj7SfCRtBDWHUb9snDiAeCFNEtKQo2Wmx5Cou7ajbmo=
 golang.org/x/term v0.0.0-20210927222741-03fcf44c2211/go.mod h1:jbD1KX2456YbFQfuXm/mYQcufACuNUgVhRMnK/tPxf8=
-golang.org/x/term v0.34.0 h1:O/2T7POpk0ZZ7MAzMeWFSg6S5IpWd/RXDlM9hgM3DR4=
-golang.org/x/term v0.34.0/go.mod h1:5jC53AEywhIVebHgPVeg0mj8OD3VO9OzclacVrqpaAw=
+golang.org/x/term v0.38.0 h1:PQ5pkm/rLO6HnxFR7N2lJHOZX6Kez5Y1gDSJla6jo7Q=
+golang.org/x/term v0.38.0/go.mod h1:bSEAKrOT1W+VSu9TSCMtoGEOUcKxOKgl3LE5QEF/xVg=
 golang.org/x/text v0.0.0-20170915032832-14c0d48ead0c/go.mod h1:NqM8EUOU14njkJ3fqMW+pc6Ldnwhi/IjpwHt7yyuwOQ=
 golang.org/x/text v0.3.0/go.mod h1:NqM8EUOU14njkJ3fqMW+pc6Ldnwhi/IjpwHt7yyuwOQ=
 golang.org/x/text v0.3.1-0.20180807135948-17ff2d5776d2/go.mod h1:NqM8EUOU14njkJ3fqMW+pc6Ldnwhi/IjpwHt7yyuwOQ=
@@ -1511,8 +1513,8 @@ golang.org/x/text v0.3.4/go.mod h1:5Zoc/QRtKVWzQhOtBMvqHzDpF6irO9z98xDceosuGiQ=
 golang.org/x/text v0.3.5/go.mod h1:5Zoc/QRtKVWzQhOtBMvqHzDpF6irO9z98xDceosuGiQ=
 golang.org/x/text v0.3.6/go.mod h1:5Zoc/QRtKVWzQhOtBMvqHzDpF6irO9z98xDceosuGiQ=
 golang.org/x/text v0.3.7/go.mod h1:u+2+/6zg+i71rQMx5EYifcz6MCKuco9NR6JIITiCfzQ=
-golang.org/x/text v0.28.0 h1:rhazDwis8INMIwQ4tpjLDzUhx6RlXqZNPEM0huQojng=
-golang.org/x/text v0.28.0/go.mod h1:U8nCwOR8jO/marOQ0QbDiOngZVEBB7MAiitBuMjXiNU=
+golang.org/x/text v0.32.0 h1:ZD01bjUt1FQ9WJ0ClOL5vxgxOI/sVCNgX1YtKwcY0mU=
+golang.org/x/text v0.32.0/go.mod h1:o/rUWzghvpD5TXrTIBuJU77MTaN0ljMWE47kxGJQ7jY=
 golang.org/x/time v0.0.0-20181108054448-85acf8d2951c/go.mod h1:tRJNPiyCQ0inRvYxbN9jk5I+vvW/OXSQhTDSoE431IQ=
 golang.org/x/time v0.0.0-20190308202827-9d24e82272b4/go.mod h1:tRJNPiyCQ0inRvYxbN9jk5I+vvW/OXSQhTDSoE431IQ=
 golang.org/x/time v0.0.0-20191024005414-555d28b269f0/go.mod h1:tRJNPiyCQ0inRvYxbN9jk5I+vvW/OXSQhTDSoE431IQ=
@@ -1575,8 +1577,10 @@ golang.org/x/tools v0.1.2/go.mod h1:o0xws9oXOQQZyjljx8fwUC0k7L1pTE6eaCbjGeHmOkk=
 golang.org/x/tools v0.1.3/go.mod h1:o0xws9oXOQQZyjljx8fwUC0k7L1pTE6eaCbjGeHmOkk=
 golang.org/x/tools v0.1.4/go.mod h1:o0xws9oXOQQZyjljx8fwUC0k7L1pTE6eaCbjGeHmOkk=
 golang.org/x/tools v0.1.5/go.mod h1:o0xws9oXOQQZyjljx8fwUC0k7L1pTE6eaCbjGeHmOkk=
-golang.org/x/tools v0.36.0 h1:kWS0uv/zsvHEle1LbV5LE8QujrxB3wfQyxHfhOk0Qkg=
-golang.org/x/tools v0.36.0/go.mod h1:WBDiHKJK8YgLHlcQPYQzNCkUxUypCaa5ZegCVutKm+s=
+golang.org/x/tools v0.39.0 h1:ik4ho21kwuQln40uelmciQPp9SipgNDdrafrYA4TmQQ=
+golang.org/x/tools v0.39.0/go.mod h1:JnefbkDPyD8UU2kI5fuf8ZX4/yUeh9W877ZeBONxUqQ=
+golang.org/x/tools/godoc v0.1.0-deprecated h1:o+aZ1BOj6Hsx/GBdJO/s815sqftjSnrZZwyYTHODvtk=
+golang.org/x/tools/godoc v0.1.0-deprecated/go.mod h1:qM63CriJ961IHWmnWa9CjZnBndniPt4a3CK0PVB9bIg=
 golang.org/x/xerrors v0.0.0-20190717185122-a985d3407aa7/go.mod h1:I/5z698sn9Ka8TeJc9MKroUUfqBBauWjQqLJ2OPfmY0=
 golang.org/x/xerrors v0.0.0-20191011141410-1b5146add898/go.mod h1:I/5z698sn9Ka8TeJc9MKroUUfqBBauWjQqLJ2OPfmY0=
 golang.org/x/xerrors v0.0.0-20191204190536-9bdfabe68543/go.mod h1:I/5z698sn9Ka8TeJc9MKroUUfqBBauWjQqLJ2OPfmY0=

pkg/apis/fields/parse.go

@@ -80,6 +80,17 @@ func parseFieldKeyRequest(r *http.Request) (*telemetrytypes.FieldKeySelector, er
 
 	name := r.URL.Query().Get("searchText")
 
+	if name != "" && fieldContext == telemetrytypes.FieldContextUnspecified {
+		parsedFieldKey := telemetrytypes.GetFieldKeyFromKeyText(name)
+		if parsedFieldKey.FieldContext != telemetrytypes.FieldContextUnspecified {
+			// Only apply inferred context if it is valid for the current signal
+			if isContextValidForSignal(parsedFieldKey.FieldContext, signal) {
+				name = parsedFieldKey.Name
+				fieldContext = parsedFieldKey.FieldContext
+			}
+		}
+	}
+
 	req = telemetrytypes.FieldKeySelector{
 		StartUnixMilli:    startUnixMilli,
 		EndUnixMilli:      endUnixMilli,
@@ -102,6 +113,16 @@ func parseFieldValueRequest(r *http.Request) (*telemetrytypes.FieldValueSelector
 	}
 
 	name := r.URL.Query().Get("name")
+	if name != "" && keySelector.FieldContext == telemetrytypes.FieldContextUnspecified {
+		parsedFieldKey := telemetrytypes.GetFieldKeyFromKeyText(name)
+		if parsedFieldKey.FieldContext != telemetrytypes.FieldContextUnspecified {
+			// Only apply inferred context if it is valid for the current signal
+			if isContextValidForSignal(parsedFieldKey.FieldContext, keySelector.Signal) {
+				name = parsedFieldKey.Name
+				keySelector.FieldContext = parsedFieldKey.FieldContext
+			}
+		}
+	}
 	keySelector.Name = name
 	existingQuery := r.URL.Query().Get("existingQuery")
 	value := r.URL.Query().Get("searchText")
@@ -121,3 +142,21 @@ func parseFieldValueRequest(r *http.Request) (*telemetrytypes.FieldValueSelector
 
 	return &req, nil
 }
+
+func isContextValidForSignal(ctx telemetrytypes.FieldContext, signal telemetrytypes.Signal) bool {
+	if ctx == telemetrytypes.FieldContextResource ||
+		ctx == telemetrytypes.FieldContextAttribute ||
+		ctx == telemetrytypes.FieldContextScope {
+		return true
+	}
+
+	switch signal.StringValue() {
+	case telemetrytypes.SignalLogs.StringValue():
+		return ctx == telemetrytypes.FieldContextLog || ctx == telemetrytypes.FieldContextBody
+	case telemetrytypes.SignalTraces.StringValue():
+		return ctx == telemetrytypes.FieldContextSpan || ctx == telemetrytypes.FieldContextEvent || ctx == telemetrytypes.FieldContextTrace
+	case telemetrytypes.SignalMetrics.StringValue():
+		return ctx == telemetrytypes.FieldContextMetric
+	}
+	return true
+}

pkg/apiserver/signozapiserver/flagger.go

@@ -0,0 +1,31 @@
+package signozapiserver
+
+import (
+	"net/http"
+
+	"github.com/SigNoz/signoz/pkg/http/handler"
+	"github.com/SigNoz/signoz/pkg/types"
+	"github.com/SigNoz/signoz/pkg/types/featuretypes"
+	"github.com/gorilla/mux"
+)
+
+func (provider *provider) addFlaggerRoutes(router *mux.Router) error {
+	if err := router.Handle("/api/v2/features", handler.New(provider.authZ.ViewAccess(provider.flaggerHandler.GetFeatures), handler.OpenAPIDef{
+		ID:                  "GetFeatures",
+		Tags:                []string{"features"},
+		Summary:             "Get features",
+		Description:         "This endpoint returns the supported features and their details",
+		Request:             nil,
+		RequestContentType:  "",
+		Response:            make([]*featuretypes.GettableFeature, 0),
+		ResponseContentType: "application/json",
+		SuccessStatusCode:   http.StatusOK,
+		ErrorStatusCodes:    []int{},
+		Deprecated:          false,
+		SecuritySchemes:     newSecuritySchemes(types.RoleViewer),
+	})).Methods(http.MethodGet).GetError(); err != nil {
+		return err
+	}
+
+	return nil
+}

pkg/apiserver/signozapiserver/provider.go

@@ -6,6 +6,7 @@ import (
 	"github.com/SigNoz/signoz/pkg/apiserver"
 	"github.com/SigNoz/signoz/pkg/authz"
 	"github.com/SigNoz/signoz/pkg/factory"
+	"github.com/SigNoz/signoz/pkg/flagger"
 	"github.com/SigNoz/signoz/pkg/global"
 	"github.com/SigNoz/signoz/pkg/http/handler"
 	"github.com/SigNoz/signoz/pkg/http/middleware"
@@ -32,6 +33,7 @@ type provider struct {
 	preferenceHandler preference.Handler
 	globalHandler     global.Handler
 	promoteHandler    promote.Handler
+	flaggerHandler    flagger.Handler
 }
 
 func NewFactory(
@@ -44,9 +46,10 @@ func NewFactory(
 	preferenceHandler preference.Handler,
 	globalHandler global.Handler,
 	promoteHandler promote.Handler,
+	flaggerHandler flagger.Handler,
 ) factory.ProviderFactory[apiserver.APIServer, apiserver.Config] {
 	return factory.NewProviderFactory(factory.MustNewName("signoz"), func(ctx context.Context, providerSettings factory.ProviderSettings, config apiserver.Config) (apiserver.APIServer, error) {
-		return newProvider(ctx, providerSettings, config, orgGetter, authz, orgHandler, userHandler, sessionHandler, authDomainHandler, preferenceHandler, globalHandler, promoteHandler)
+		return newProvider(ctx, providerSettings, config, orgGetter, authz, orgHandler, userHandler, sessionHandler, authDomainHandler, preferenceHandler, globalHandler, promoteHandler, flaggerHandler)
 	})
 }
 
@@ -63,6 +66,7 @@ func newProvider(
 	preferenceHandler preference.Handler,
 	globalHandler global.Handler,
 	promoteHandler promote.Handler,
+	flaggerHandler flagger.Handler,
 ) (apiserver.APIServer, error) {
 	settings := factory.NewScopedProviderSettings(providerSettings, "github.com/SigNoz/signoz/pkg/apiserver/signozapiserver")
 	router := mux.NewRouter().UseEncodedPath()
@@ -78,6 +82,7 @@ func newProvider(
 		preferenceHandler: preferenceHandler,
 		globalHandler:     globalHandler,
 		promoteHandler:    promoteHandler,
+		flaggerHandler:    flaggerHandler,
 	}
 
 	provider.authZ = middleware.NewAuthZ(settings.Logger(), orgGetter, authz)
@@ -122,6 +127,10 @@ func (provider *provider) AddToRouter(router *mux.Router) error {
 		return err
 	}
 
+	if err := provider.addFlaggerRoutes(router); err != nil {
+		return err
+	}
+
 	return nil
 }
 

pkg/flagger/config.go

@@ -0,0 +1,32 @@
+package flagger
+
+import "github.com/SigNoz/signoz/pkg/factory"
+
+type Config struct {
+	Config ConfigProvider `mapstructure:"config"`
+}
+
+type ConfigProvider struct {
+	Boolean map[string]bool    `mapstructure:"boolean"`
+	String  map[string]string  `mapstructure:"string"`
+	Float   map[string]float64 `mapstructure:"float"`
+	Integer map[string]int64   `mapstructure:"integer"`
+	Object  map[string]any     `mapstructure:"object"`
+}
+
+func NewConfigFactory() factory.ConfigFactory {
+	return factory.NewConfigFactory(
+		factory.MustNewName("flagger"), newConfig,
+	)
+}
+
+// newConfig creates a new config with the default values.
+func newConfig() factory.Config {
+	return &Config{
+		Config: ConfigProvider{},
+	}
+}
+
+func (c Config) Validate() error {
+	return nil
+}

pkg/flagger/configflagger/configflagger.go

@@ -0,0 +1,320 @@
+package configflagger
+
+import (
+	"context"
+
+	"github.com/SigNoz/signoz/pkg/factory"
+	"github.com/SigNoz/signoz/pkg/flagger"
+	"github.com/SigNoz/signoz/pkg/types/featuretypes"
+	"github.com/open-feature/go-sdk/openfeature"
+)
+
+type provider struct {
+	config   flagger.Config
+	settings factory.ScopedProviderSettings
+	// This is the default registry that will be containing all the supported features along with there all possible variants
+	registry featuretypes.Registry
+	// These are the feature variants that are configured in the config file and will be used as overrides
+	featureVariants map[featuretypes.Name]*featuretypes.FeatureVariant
+}
+
+func NewFactory(registry featuretypes.Registry) factory.ProviderFactory[flagger.FlaggerProvider, flagger.Config] {
+	return factory.NewProviderFactory(factory.MustNewName("config"), func(ctx context.Context, ps factory.ProviderSettings, c flagger.Config) (flagger.FlaggerProvider, error) {
+		return New(ctx, ps, c, registry)
+	})
+}
+
+func New(ctx context.Context, ps factory.ProviderSettings, c flagger.Config, registry featuretypes.Registry) (flagger.FlaggerProvider, error) {
+	settings := factory.NewScopedProviderSettings(ps, "github.com/SigNoz/signoz/pkg/flagger/configflagger")
+
+	featureVariants := make(map[featuretypes.Name]*featuretypes.FeatureVariant)
+
+	for name, value := range c.Config.Boolean {
+		feature, _, err := registry.GetByString(name)
+		if err != nil {
+			return nil, err
+		}
+
+		variant, err := featuretypes.VariantByValue(feature, value)
+		if err != nil {
+			return nil, err
+		}
+
+		featureVariants[feature.Name] = variant
+	}
+
+	for name, value := range c.Config.String {
+		feature, _, err := registry.GetByString(name)
+		if err != nil {
+			return nil, err
+		}
+
+		variant, err := featuretypes.VariantByValue(feature, value)
+		if err != nil {
+			return nil, err
+		}
+
+		featureVariants[feature.Name] = variant
+	}
+
+	for name, value := range c.Config.Float {
+		feature, _, err := registry.GetByString(name)
+		if err != nil {
+			return nil, err
+		}
+
+		variant, err := featuretypes.VariantByValue(feature, value)
+		if err != nil {
+			return nil, err
+		}
+
+		featureVariants[feature.Name] = variant
+	}
+
+	for name, value := range c.Config.Integer {
+		feature, _, err := registry.GetByString(name)
+		if err != nil {
+			return nil, err
+		}
+
+		variant, err := featuretypes.VariantByValue(feature, value)
+		if err != nil {
+			return nil, err
+		}
+
+		featureVariants[feature.Name] = variant
+	}
+
+	for name, value := range c.Config.Object {
+		feature, _, err := registry.GetByString(name)
+		if err != nil {
+			return nil, err
+		}
+
+		variant, err := featuretypes.VariantByValue(feature, value)
+		if err != nil {
+			return nil, err
+		}
+
+		featureVariants[feature.Name] = variant
+	}
+
+	return &provider{
+		config:          c,
+		settings:        settings,
+		registry:        registry,
+		featureVariants: featureVariants,
+	}, nil
+}
+
+func (provider *provider) Metadata() openfeature.Metadata {
+	return openfeature.Metadata{
+		Name: "config",
+	}
+}
+
+func (p *provider) BooleanEvaluation(ctx context.Context, flag string, defaultValue bool, evalCtx openfeature.FlattenedContext) openfeature.BoolResolutionDetail {
+	// check if the feature is present in the default registry
+	feature, detail, err := p.registry.GetByString(flag)
+	if err != nil {
+		return openfeature.BoolResolutionDetail{
+			Value:                    defaultValue,
+			ProviderResolutionDetail: detail,
+		}
+	}
+
+	// get the default value from the feature from default registry
+	value, detail, err := featuretypes.VariantValue[bool](feature, feature.DefaultVariant)
+	if err != nil {
+		return openfeature.BoolResolutionDetail{
+			Value:                    defaultValue,
+			ProviderResolutionDetail: detail,
+		}
+	}
+
+	// check if the feature is present in the featureVariants map
+	variant, ok := p.featureVariants[feature.Name]
+	if ok {
+		// return early as we have found the value in the featureVariants map
+		return openfeature.BoolResolutionDetail{
+			Value:                    variant.Value.(bool),
+			ProviderResolutionDetail: detail,
+		}
+	}
+
+	// return the value from the default registry we found earlier
+	return openfeature.BoolResolutionDetail{
+		Value:                    value,
+		ProviderResolutionDetail: detail,
+	}
+}
+
+func (p *provider) FloatEvaluation(ctx context.Context, flag string, defaultValue float64, evalCtx openfeature.FlattenedContext) openfeature.FloatResolutionDetail {
+	// check if the feature is present in the default registry
+	feature, detail, err := p.registry.GetByString(flag)
+	if err != nil {
+		return openfeature.FloatResolutionDetail{
+			Value:                    defaultValue,
+			ProviderResolutionDetail: detail,
+		}
+	}
+
+	// get the default value from the feature from default registry
+	value, detail, err := featuretypes.VariantValue[float64](feature, feature.DefaultVariant)
+	if err != nil {
+		return openfeature.FloatResolutionDetail{
+			Value:                    defaultValue,
+			ProviderResolutionDetail: detail,
+		}
+	}
+
+	// check if the feature is present in the featureVariants map
+	variant, ok := p.featureVariants[feature.Name]
+	if ok {
+		// return early as we have found the value in the featureVariants map
+		return openfeature.FloatResolutionDetail{
+			Value:                    variant.Value.(float64),
+			ProviderResolutionDetail: detail,
+		}
+	}
+
+	// return the value from the default registry we found earlier
+	return openfeature.FloatResolutionDetail{
+		Value:                    value,
+		ProviderResolutionDetail: detail,
+	}
+}
+
+func (p *provider) StringEvaluation(ctx context.Context, flag string, defaultValue string, evalCtx openfeature.FlattenedContext) openfeature.StringResolutionDetail {
+	// check if the feature is present in the default registry
+	feature, detail, err := p.registry.GetByString(flag)
+	if err != nil {
+		return openfeature.StringResolutionDetail{
+			Value:                    defaultValue,
+			ProviderResolutionDetail: detail,
+		}
+	}
+
+	// get the default value from the feature from default registry
+	value, detail, err := featuretypes.VariantValue[string](feature, feature.DefaultVariant)
+	if err != nil {
+		return openfeature.StringResolutionDetail{
+			Value:                    defaultValue,
+			ProviderResolutionDetail: detail,
+		}
+	}
+
+	// check if the feature is present in the featureVariants map
+	variant, ok := p.featureVariants[feature.Name]
+	if ok {
+		// return early as we have found the value in the featureVariants map
+		return openfeature.StringResolutionDetail{
+			Value:                    variant.Value.(string),
+			ProviderResolutionDetail: detail,
+		}
+	}
+
+	// return the value from the default registry we found earlier
+	return openfeature.StringResolutionDetail{
+		Value:                    value,
+		ProviderResolutionDetail: detail,
+	}
+}
+
+func (p *provider) IntEvaluation(ctx context.Context, flag string, defaultValue int64, evalCtx openfeature.FlattenedContext) openfeature.IntResolutionDetail {
+	// check if the feature is present in the default registry
+	feature, detail, err := p.registry.GetByString(flag)
+	if err != nil {
+		return openfeature.IntResolutionDetail{
+			Value:                    defaultValue,
+			ProviderResolutionDetail: detail,
+		}
+	}
+
+	// get the default value from the feature from default registry
+	value, detail, err := featuretypes.VariantValue[int64](feature, feature.DefaultVariant)
+	if err != nil {
+		return openfeature.IntResolutionDetail{
+			Value:                    defaultValue,
+			ProviderResolutionDetail: detail,
+		}
+	}
+
+	// check if the feature is present in the featureVariants map
+	variant, ok := p.featureVariants[feature.Name]
+	if ok {
+		// return early as we have found the value in the featureVariants map
+		return openfeature.IntResolutionDetail{
+			Value:                    variant.Value.(int64),
+			ProviderResolutionDetail: detail,
+		}
+	}
+
+	// return the value from the default registry we found earlier
+	return openfeature.IntResolutionDetail{
+		Value:                    value,
+		ProviderResolutionDetail: detail,
+	}
+}
+
+func (p *provider) ObjectEvaluation(ctx context.Context, flag string, defaultValue any, evalCtx openfeature.FlattenedContext) openfeature.InterfaceResolutionDetail {
+	// check if the feature is present in the default registry
+	feature, detail, err := p.registry.GetByString(flag)
+	if err != nil {
+		return openfeature.InterfaceResolutionDetail{
+			Value:                    defaultValue,
+			ProviderResolutionDetail: detail,
+		}
+	}
+
+	// get the default value from the feature from default registry
+	value, detail, err := featuretypes.VariantValue[any](feature, feature.DefaultVariant)
+	if err != nil {
+		return openfeature.InterfaceResolutionDetail{
+			Value:                    defaultValue,
+			ProviderResolutionDetail: detail,
+		}
+	}
+
+	// check if the feature is present in the featureVariants map
+	variant, ok := p.featureVariants[feature.Name]
+	if ok {
+		// return early as we have found the value in the featureVariants map
+		return openfeature.InterfaceResolutionDetail{
+			Value:                    variant.Value,
+			ProviderResolutionDetail: detail,
+		}
+	}
+
+	// return the value from the default registry we found earlier
+	return openfeature.InterfaceResolutionDetail{
+		Value:                    value,
+		ProviderResolutionDetail: detail,
+	}
+}
+
+func (provider *provider) Hooks() []openfeature.Hook {
+	return []openfeature.Hook{}
+}
+
+func (p *provider) List(ctx context.Context) ([]*featuretypes.GettableFeature, error) {
+	result := make([]*featuretypes.GettableFeature, 0, len(p.featureVariants))
+
+	for featureName, variant := range p.featureVariants {
+		feature, _, err := p.registry.Get(featureName)
+		if err != nil {
+			return nil, err
+		}
+		result = append(result, &featuretypes.GettableFeature{
+			Name:           feature.Name.String(),
+			Kind:           feature.Kind.StringValue(),
+			Stage:          feature.Stage.StringValue(),
+			Description:    feature.Description,
+			DefaultVariant: feature.DefaultVariant.String(),
+			Variants:       nil,
+			ResolvedValue:  variant.Value,
+		})
+	}
+
+	return result, nil
+}

pkg/flagger/flagger.go

@@ -0,0 +1,282 @@
+package flagger
+
+import (
+	"context"
+
+	"github.com/SigNoz/signoz/pkg/factory"
+	"github.com/SigNoz/signoz/pkg/types/featuretypes"
+	"github.com/open-feature/go-sdk/openfeature"
+)
+
+// Any feature flag provider has to implement this interface.
+type FlaggerProvider interface {
+	openfeature.FeatureProvider
+
+	// List returns all the feature flags
+	List(ctx context.Context) ([]*featuretypes.GettableFeature, error)
+}
+
+// This is the consumer facing interface for the Flagger service.
+type Flagger interface {
+	Boolean(ctx context.Context, flag string, evalCtx featuretypes.FlaggerEvaluationContext) (bool, error)
+	String(ctx context.Context, flag string, evalCtx featuretypes.FlaggerEvaluationContext) (string, error)
+	Float(ctx context.Context, flag string, evalCtx featuretypes.FlaggerEvaluationContext) (float64, error)
+	Int(ctx context.Context, flag string, evalCtx featuretypes.FlaggerEvaluationContext) (int64, error)
+	Object(ctx context.Context, flag string, evalCtx featuretypes.FlaggerEvaluationContext) (any, error)
+	List(ctx context.Context, evalCtx featuretypes.FlaggerEvaluationContext) ([]*featuretypes.GettableFeature, error)
+}
+
+// This is the concrete implementation of the Flagger interface.
+type flagger struct {
+	registry  featuretypes.Registry
+	settings  factory.ScopedProviderSettings
+	providers map[string]FlaggerProvider
+	clients   map[string]*openfeature.Client
+}
+
+func New(ctx context.Context, ps factory.ProviderSettings, config Config, registry featuretypes.Registry, factories ...factory.ProviderFactory[FlaggerProvider, Config]) (Flagger, error) {
+	settings := factory.NewScopedProviderSettings(ps, "github.com/SigNoz/signoz/pkg/flagger")
+
+	providers := make(map[string]FlaggerProvider)
+	clients := make(map[string]*openfeature.Client)
+
+	for _, factory := range factories {
+		provider, err := factory.New(ctx, ps, config)
+		if err != nil {
+			return nil, err
+		}
+
+		providers[provider.Metadata().Name] = provider
+
+		openfeatureClient := openfeature.NewClient(provider.Metadata().Name)
+
+		if err := openfeature.SetNamedProviderAndWait(provider.Metadata().Name, provider); err != nil {
+			return nil, err
+		}
+
+		clients[provider.Metadata().Name] = openfeatureClient
+	}
+
+	return &flagger{
+		registry:  registry,
+		settings:  settings,
+		providers: providers,
+		clients:   clients,
+	}, nil
+}
+
+func (f *flagger) Boolean(ctx context.Context, flag string, evalCtx featuretypes.FlaggerEvaluationContext) (bool, error) {
+	// check if the feature is present in the default registry
+	feature, _, err := f.registry.GetByString(flag)
+	if err != nil {
+		f.settings.Logger().ErrorContext(ctx, "failed to get feature from default registry", "error", err, "flag", flag)
+		return false, err
+	}
+
+	// get the default value from the feature from default registry
+	defaultValue, _, err := featuretypes.VariantValue[bool](feature, feature.DefaultVariant)
+	if err != nil {
+		// something which should never happen
+		f.settings.Logger().ErrorContext(ctx, "failed to get default value from feature", "error", err, "flag", flag)
+		return false, err
+	}
+
+	// * this logic can be optimised based on priority of the clients and short circuiting
+	// now ask all the available clients for the value
+	for _, client := range f.clients {
+		value, err := client.BooleanValue(ctx, flag, defaultValue, evalCtx.Ctx())
+		if err != nil {
+			f.settings.Logger().ErrorContext(ctx, "failed to get value from client", "error", err, "flag", flag, "client", client.Metadata().Name)
+			continue
+		}
+
+		if value != defaultValue {
+			return value, nil
+		}
+	}
+
+	return defaultValue, nil
+}
+
+func (f *flagger) String(ctx context.Context, flag string, evalCtx featuretypes.FlaggerEvaluationContext) (string, error) {
+	// check if the feature is present in the default registry
+	feature, _, err := f.registry.GetByString(flag)
+	if err != nil {
+		f.settings.Logger().ErrorContext(ctx, "failed to get feature from default registry", "error", err, "flag", flag)
+		return "", err
+	}
+
+	// get the default value from the feature from default registry
+	defaultValue, _, err := featuretypes.VariantValue[string](feature, feature.DefaultVariant)
+	if err != nil {
+		// something which should never happen
+		f.settings.Logger().ErrorContext(ctx, "failed to get default value from feature", "error", err, "flag", flag)
+		return "", err
+	}
+
+	// * this logic can be optimised based on priority of the clients and short circuiting
+	// now ask all the available clients for the value
+	for _, client := range f.clients {
+		value, err := client.StringValue(ctx, flag, defaultValue, evalCtx.Ctx())
+		if err != nil {
+			f.settings.Logger().WarnContext(ctx, "failed to get value from client", "error", err, "flag", flag, "client", client.Metadata().Name)
+			continue
+		}
+
+		if value != defaultValue {
+			return value, nil
+		}
+	}
+
+	return defaultValue, nil
+}
+
+func (f *flagger) Float(ctx context.Context, flag string, evalCtx featuretypes.FlaggerEvaluationContext) (float64, error) {
+	// check if the feature is present in the default registry
+	feature, _, err := f.registry.GetByString(flag)
+	if err != nil {
+		f.settings.Logger().ErrorContext(ctx, "failed to get feature from default registry", "error", err, "flag", flag)
+		return 0, err
+	}
+
+	// get the default value from the feature from default registry
+	defaultValue, _, err := featuretypes.VariantValue[float64](feature, feature.DefaultVariant)
+	if err != nil {
+		// something which should never happen
+		f.settings.Logger().ErrorContext(ctx, "failed to get default value from feature", "error", err, "flag", flag)
+		return 0, err
+	}
+
+	// * this logic can be optimised based on priority of the clients and short circuiting
+	// now ask all the available clients for the value
+	for _, client := range f.clients {
+		value, err := client.FloatValue(ctx, flag, defaultValue, evalCtx.Ctx())
+		if err != nil {
+			f.settings.Logger().WarnContext(ctx, "failed to get value from client", "error", err, "flag", flag, "client", client.Metadata().Name)
+			continue
+		}
+
+		if value != defaultValue {
+			return value, nil
+		}
+	}
+
+	return defaultValue, nil
+}
+
+func (f *flagger) Int(ctx context.Context, flag string, evalCtx featuretypes.FlaggerEvaluationContext) (int64, error) {
+	// check if the feature is present in the default registry
+	feature, _, err := f.registry.GetByString(flag)
+	if err != nil {
+		f.settings.Logger().ErrorContext(ctx, "failed to get feature from default registry", "error", err, "flag", flag)
+		return 0, err
+	}
+
+	// get the default value from the feature from default registry
+	defaultValue, _, err := featuretypes.VariantValue[int64](feature, feature.DefaultVariant)
+	if err != nil {
+		// something which should never happen
+		f.settings.Logger().ErrorContext(ctx, "failed to get default value from feature", "error", err, "flag", flag)
+		return 0, err
+	}
+
+	// * this logic can be optimised based on priority of the clients and short circuiting
+	// now ask all the available clients for the value
+	for _, client := range f.clients {
+		value, err := client.IntValue(ctx, flag, defaultValue, evalCtx.Ctx())
+		if err != nil {
+			f.settings.Logger().WarnContext(ctx, "failed to get value from client", "error", err, "flag", flag, "client", client.Metadata().Name)
+			continue
+		}
+
+		if value != defaultValue {
+			return value, nil
+		}
+	}
+
+	return defaultValue, nil
+}
+
+func (f *flagger) Object(ctx context.Context, flag string, evalCtx featuretypes.FlaggerEvaluationContext) (any, error) {
+	// check if the feature is present in the default registry
+	feature, _, err := f.registry.GetByString(flag)
+	if err != nil {
+		f.settings.Logger().ErrorContext(ctx, "failed to get feature from default registry", "error", err, "flag", flag)
+		return nil, err
+	}
+
+	// get the default value from the feature from default registry
+	defaultValue, _, err := featuretypes.VariantValue[any](feature, feature.DefaultVariant)
+	if err != nil {
+		// something which should never happen
+		f.settings.Logger().ErrorContext(ctx, "failed to get default value from feature", "error", err, "flag", flag)
+		return nil, err
+	}
+
+	// * this logic can be optimised based on priority of the clients and short circuiting
+	// now ask all the available clients for the value
+	for _, client := range f.clients {
+		value, err := client.ObjectValue(ctx, flag, defaultValue, evalCtx.Ctx())
+		if err != nil {
+			f.settings.Logger().WarnContext(ctx, "failed to get value from client", "error", err, "flag", flag, "client", client.Metadata().Name)
+			continue
+		}
+
+		// ! for object we do not compare with the default value for now, we will figure this out better in future coming releases
+		// if value != defaultValue {
+		// 	return value, nil
+		// }
+		return value, nil
+	}
+
+	return defaultValue, nil
+}
+
+func (f *flagger) List(ctx context.Context, evalCtx featuretypes.FlaggerEvaluationContext) ([]*featuretypes.GettableFeature, error) {
+	// get all the feature from the default registry
+	allFeatures := f.registry.List()
+
+	// make a map of name of feature -> the dict we want to create from all features
+	featureMap := make(map[string]*featuretypes.GettableFeature, len(allFeatures))
+
+	for _, feature := range allFeatures {
+		variants := make(map[string]any, len(feature.Variants))
+		for name, value := range feature.Variants {
+			variants[name.String()] = value.Value
+		}
+
+		featureMap[feature.Name.String()] = &featuretypes.GettableFeature{
+			Name:           feature.Name.String(),
+			Kind:           feature.Kind.StringValue(),
+			Stage:          feature.Stage.StringValue(),
+			Description:    feature.Description,
+			DefaultVariant: feature.DefaultVariant.String(),
+			Variants:       variants,
+			ResolvedValue:  feature.Variants[feature.DefaultVariant].Value,
+		}
+	}
+
+	// now call each provider and fix the value in feature map
+	for _, provider := range f.providers {
+		pFeatures, err := provider.List(ctx)
+		if err != nil {
+			f.settings.Logger().WarnContext(ctx, "failed to get features from provider", "error", err, "provider", provider.Metadata().Name)
+			continue
+		}
+
+		// merge
+		for _, pFeature := range pFeatures {
+			if existing, ok := featureMap[pFeature.Name]; ok {
+				existing.ResolvedValue = pFeature.ResolvedValue
+			}
+		}
+	}
+
+	result := make([]*featuretypes.GettableFeature, 0, len(allFeatures))
+
+	for _, f := range featureMap {
+		result = append(result, f)
+	}
+
+	return result, nil
+}

pkg/flagger/handler.go

@@ -0,0 +1,53 @@
+package flagger
+
+import (
+	"context"
+	"net/http"
+	"time"
+
+	"github.com/SigNoz/signoz/pkg/http/render"
+	"github.com/SigNoz/signoz/pkg/types/authtypes"
+	"github.com/SigNoz/signoz/pkg/types/featuretypes"
+	"github.com/SigNoz/signoz/pkg/valuer"
+)
+
+type Handler interface {
+	GetFeatures(http.ResponseWriter, *http.Request)
+}
+
+type handler struct {
+	flagger Flagger
+}
+
+func NewHandler(flagger Flagger) Handler {
+	return &handler{
+		flagger: flagger,
+	}
+}
+
+func (handler *handler) GetFeatures(rw http.ResponseWriter, r *http.Request) {
+	ctx, cancel := context.WithTimeout(r.Context(), 10*time.Second)
+	defer cancel()
+
+	claims, err := authtypes.ClaimsFromContext(ctx)
+	if err != nil {
+		render.Error(rw, err)
+		return
+	}
+
+	orgID, err := valuer.NewUUID(claims.OrgID)
+	if err != nil {
+		render.Error(rw, err)
+		return
+	}
+
+	evalCtx := featuretypes.NewFlaggerEvaluationContext(orgID)
+
+	features, err := handler.flagger.List(ctx, evalCtx)
+	if err != nil {
+		render.Error(rw, err)
+		return
+	}
+
+	render.Success(rw, http.StatusOK, features)
+}

pkg/flagger/registry.go

@@ -0,0 +1,12 @@
+package flagger
+
+import "github.com/SigNoz/signoz/pkg/types/featuretypes"
+
+func MustNewRegistry() featuretypes.Registry {
+	registry, err := featuretypes.NewRegistry()
+	if err != nil {
+		panic(err)
+	}
+
+	return registry
+}

pkg/query-service/agentConf/db.go

@@ -146,11 +146,21 @@ func (r *Repo) insertConfig(
 		c.Version = 1
 	}
 
+	// Track whether we've successfully finished the insert operation
+	success := false
+
 	defer func() {
-		if err != nil {
+		if !success {
 			// remove all the damage (invalid rows from db)
-			r.store.BunDB().NewDelete().Model(new(opamptypes.AgentConfigVersion)).Where("id = ?", c.ID).Where("org_id = ?", orgId).Exec(ctx)
-			r.store.BunDB().NewDelete().Model(new(opamptypes.AgentConfigElement)).Where("version_id = ?", c.ID).Exec(ctx)
+			// Delete elements first, then version (to respect potential foreign key constraints)
+			_, delErr := r.store.BunDB().NewDelete().Model(new(opamptypes.AgentConfigElement)).Where("version_id = ?", c.ID).Exec(ctx)
+			if delErr != nil {
+				zap.L().Error("failed to delete config elements during cleanup", zap.Error(delErr), zap.String("version_id", c.ID.String()))
+			}
+			_, delErr = r.store.BunDB().NewDelete().Model(new(opamptypes.AgentConfigVersion)).Where("id = ?", c.ID).Where("org_id = ?", orgId).Exec(ctx)
+			if delErr != nil {
+				zap.L().Error("failed to delete config version during cleanup", zap.Error(delErr), zap.String("version_id", c.ID.String()))
+			}
 		}
 	}()
 
@@ -181,6 +191,7 @@ func (r *Repo) insertConfig(
 		}
 	}
 
+	success = true
 	return nil
 }
 

pkg/query-service/app/inframetrics/hosts.go

@@ -520,7 +520,7 @@ func (h *HostsRepo) GetHostList(ctx context.Context, orgID valuer.UUID, req mode
 			if _, ok := hostAttrs[record.HostName]; ok {
 				record.Meta = hostAttrs[record.HostName]
 			}
-			if osType, ok := record.Meta["os_type"]; ok {
+			if osType, ok := record.Meta[GetDotMetrics("os_type")]; ok {
 				record.OS = osType
 			}
 			record.Active = activeHosts[record.HostName]

pkg/signoz/config.go

@@ -17,6 +17,7 @@ import (
 	"github.com/SigNoz/signoz/pkg/emailing"
 	"github.com/SigNoz/signoz/pkg/errors"
 	"github.com/SigNoz/signoz/pkg/factory"
+	"github.com/SigNoz/signoz/pkg/flagger"
 	"github.com/SigNoz/signoz/pkg/gateway"
 	"github.com/SigNoz/signoz/pkg/global"
 	"github.com/SigNoz/signoz/pkg/instrumentation"
@@ -105,6 +106,9 @@ type Config struct {
 
 	// MetricsExplorer config
 	MetricsExplorer metricsexplorer.Config `mapstructure:"metricsexplorer"`
+
+	// Flagger config
+	Flagger flagger.Config `mapstructure:"flagger"`
 }
 
 // DeprecatedFlags are the flags that are deprecated and scheduled for removal.
@@ -166,6 +170,7 @@ func NewConfig(ctx context.Context, logger *slog.Logger, resolverConfig config.R
 		gateway.NewConfigFactory(),
 		tokenizer.NewConfigFactory(),
 		metricsexplorer.NewConfigFactory(),
+		flagger.NewConfigFactory(),
 	}
 
 	conf, err := config.New(ctx, resolverConfig, configFactories)

pkg/signoz/handler.go

@@ -2,6 +2,7 @@ package signoz
 
 import (
 	"github.com/SigNoz/signoz/pkg/factory"
+	"github.com/SigNoz/signoz/pkg/flagger"
 	"github.com/SigNoz/signoz/pkg/global"
 	"github.com/SigNoz/signoz/pkg/global/signozglobal"
 	"github.com/SigNoz/signoz/pkg/licensing"
@@ -37,9 +38,10 @@ type Handlers struct {
 	Services        services.Handler
 	MetricsExplorer metricsexplorer.Handler
 	Global          global.Handler
+	FlaggerHandler  flagger.Handler
 }
 
-func NewHandlers(modules Modules, providerSettings factory.ProviderSettings, querier querier.Querier, licensing licensing.Licensing, global global.Global) Handlers {
+func NewHandlers(modules Modules, providerSettings factory.ProviderSettings, querier querier.Querier, licensing licensing.Licensing, global global.Global, flaggerService flagger.Flagger) Handlers {
 	return Handlers{
 		SavedView:       implsavedview.NewHandler(modules.SavedView),
 		Apdex:           implapdex.NewHandler(modules.Apdex),
@@ -51,5 +53,6 @@ func NewHandlers(modules Modules, providerSettings factory.ProviderSettings, que
 		MetricsExplorer: implmetricsexplorer.NewHandler(modules.MetricsExplorer),
 		SpanPercentile:  implspanpercentile.NewHandler(modules.SpanPercentile),
 		Global:          signozglobal.NewHandler(global),
+		FlaggerHandler:  flagger.NewHandler(flaggerService),
 	}
 }

pkg/signoz/handler_test.go

@@ -40,7 +40,7 @@ func TestNewHandlers(t *testing.T) {
 	require.NoError(t, err)
 	modules := NewModules(sqlstore, tokenizer, emailing, providerSettings, orgGetter, alertmanager, nil, nil, nil, nil, nil, nil, nil, queryParser, Config{})
 
-	handlers := NewHandlers(modules, providerSettings, nil, nil, nil)
+	handlers := NewHandlers(modules, providerSettings, nil, nil, nil, nil)
 
 	reflectVal := reflect.ValueOf(handlers)
 	for i := 0; i < reflectVal.NumField(); i++ {

pkg/signoz/openapi.go

@@ -8,6 +8,7 @@ import (
 	"github.com/SigNoz/signoz/pkg/apiserver"
 	"github.com/SigNoz/signoz/pkg/apiserver/signozapiserver"
 	"github.com/SigNoz/signoz/pkg/authz"
+	"github.com/SigNoz/signoz/pkg/flagger"
 	"github.com/SigNoz/signoz/pkg/global"
 	"github.com/SigNoz/signoz/pkg/http/handler"
 	"github.com/SigNoz/signoz/pkg/instrumentation"
@@ -40,6 +41,7 @@ func NewOpenAPI(ctx context.Context, instrumentation instrumentation.Instrumenta
 		struct{ preference.Handler }{},
 		struct{ global.Handler }{},
 		struct{ promote.Handler }{},
+		struct{ flagger.Handler }{},
 	).New(ctx, instrumentation.ToProviderSettings(), apiserver.Config{})
 	if err != nil {
 		return nil, err

pkg/signoz/provider.go

@@ -18,6 +18,8 @@ import (
 	"github.com/SigNoz/signoz/pkg/emailing/noopemailing"
 	"github.com/SigNoz/signoz/pkg/emailing/smtpemailing"
 	"github.com/SigNoz/signoz/pkg/factory"
+	"github.com/SigNoz/signoz/pkg/flagger"
+	"github.com/SigNoz/signoz/pkg/flagger/configflagger"
 	"github.com/SigNoz/signoz/pkg/global"
 	"github.com/SigNoz/signoz/pkg/global/signozglobal"
 	"github.com/SigNoz/signoz/pkg/modules/authdomain/implauthdomain"
@@ -54,6 +56,7 @@ import (
 	"github.com/SigNoz/signoz/pkg/tokenizer/opaquetokenizer"
 	"github.com/SigNoz/signoz/pkg/tokenizer/tokenizerstore/sqltokenizerstore"
 	"github.com/SigNoz/signoz/pkg/types/alertmanagertypes"
+	"github.com/SigNoz/signoz/pkg/types/featuretypes"
 	"github.com/SigNoz/signoz/pkg/version"
 	"github.com/SigNoz/signoz/pkg/web"
 	"github.com/SigNoz/signoz/pkg/web/noopweb"
@@ -236,6 +239,7 @@ func NewAPIServerProviderFactories(orgGetter organization.Getter, authz authz.Au
 			implpreference.NewHandler(modules.Preference),
 			signozglobal.NewHandler(global),
 			implpromote.NewHandler(modules.Promote),
+			handlers.FlaggerHandler,
 		),
 	)
 }
@@ -253,3 +257,9 @@ func NewGlobalProviderFactories() factory.NamedMap[factory.ProviderFactory[globa
 		signozglobal.NewFactory(),
 	)
 }
+
+func NewFlaggerProviderFactories(registry featuretypes.Registry) factory.NamedMap[factory.ProviderFactory[flagger.FlaggerProvider, flagger.Config]] {
+	return factory.MustNewNamedMap(
+		configflagger.NewFactory(registry),
+	)
+}

pkg/signoz/signoz.go

@@ -14,6 +14,7 @@ import (
 	"github.com/SigNoz/signoz/pkg/cache"
 	"github.com/SigNoz/signoz/pkg/emailing"
 	"github.com/SigNoz/signoz/pkg/factory"
+	"github.com/SigNoz/signoz/pkg/flagger"
 	"github.com/SigNoz/signoz/pkg/instrumentation"
 	"github.com/SigNoz/signoz/pkg/licensing"
 	"github.com/SigNoz/signoz/pkg/modules/organization"
@@ -66,6 +67,7 @@ type SigNoz struct {
 	Modules                Modules
 	Handlers               Handlers
 	QueryParser            queryparser.QueryParser
+	Flagger                flagger.Flagger
 }
 
 func New(
@@ -356,11 +358,25 @@ func New(
 		return nil, err
 	}
 
+	// Initialize flagger from the available flagger provider factories
+	flaggerRegistry := flagger.MustNewRegistry()
+	flaggerProviderFactories := NewFlaggerProviderFactories(flaggerRegistry)
+	flagger, err := flagger.New(
+		ctx,
+		providerSettings,
+		config.Flagger,
+		flaggerRegistry,
+		flaggerProviderFactories.GetInOrder()...,
+	)
+	if err != nil {
+		return nil, err
+	}
+
 	// Initialize all modules
 	modules := NewModules(sqlstore, tokenizer, emailing, providerSettings, orgGetter, alertmanager, analytics, querier, telemetrystore, telemetryMetadataStore, authNs, authz, cache, queryParser, config)
 
 	// Initialize all handlers for the modules
-	handlers := NewHandlers(modules, providerSettings, querier, licensing, global)
+	handlers := NewHandlers(modules, providerSettings, querier, licensing, global, flagger)
 
 	// Initialize the API server
 	apiserver, err := factory.NewProviderFromNamedMap(
@@ -434,5 +450,6 @@ func New(
 		Modules:                modules,
 		Handlers:               handlers,
 		QueryParser:            queryParser,
+		Flagger:                flagger,
 	}, nil
 }

pkg/types/featuretypes/context.go

@@ -0,0 +1,23 @@
+package featuretypes
+
+import (
+	"github.com/SigNoz/signoz/pkg/valuer"
+	"github.com/open-feature/go-sdk/openfeature"
+)
+
+// A concrete wrapper around the openfeature.EvaluationContext
+type FlaggerEvaluationContext struct {
+	ctx openfeature.EvaluationContext
+}
+
+// Creates a new FlaggerEvaluationContext with given details
+func NewFlaggerEvaluationContext(orgID valuer.UUID) FlaggerEvaluationContext {
+	ctx := openfeature.NewTargetlessEvaluationContext(map[string]any{
+		"orgId": orgID.String(),
+	})
+	return FlaggerEvaluationContext{ctx: ctx}
+}
+
+func (ctx FlaggerEvaluationContext) Ctx() openfeature.EvaluationContext {
+	return ctx.ctx
+}

pkg/types/featuretypes/feature.go

@@ -0,0 +1,113 @@
+package featuretypes
+
+import (
+	"github.com/SigNoz/signoz/pkg/errors"
+	"github.com/open-feature/go-sdk/openfeature"
+)
+
+var (
+	ErrCodeFeatureVariantNotFound        = errors.MustNewCode("feature_variant_not_found")
+	ErrCodeFeatureValueNotFound          = errors.MustNewCode("feature_value_not_found")
+	ErrCodeFeatureVariantKindMismatch    = errors.MustNewCode("feature_variant_kind_mismatch")
+	ErrCodeFeatureDefaultVariantNotFound = errors.MustNewCode("feature_default_variant_not_found")
+	ErrCodeFeatureNotFound               = errors.MustNewCode("feature_not_found")
+)
+
+// A concrete type for a feature flag
+type Feature struct {
+	// Name of the feature
+	Name Name `json:"name"`
+	// Kind of the feature
+	Kind Kind `json:"kind"`
+	// Stage of the feature
+	Stage Stage `json:"stage"`
+	// Description of the feature
+	Description string `json:"description"`
+	// DefaultVariant of the feature
+	DefaultVariant Name `json:"defaultVariant"`
+	// Variants of the feature
+	Variants map[Name]FeatureVariant `json:"variants"`
+}
+
+// A concrete type for a feature flag variant
+type FeatureVariant struct {
+	// Name of the variant
+	Variant Name `json:"variant"`
+	// Value of the variant
+	Value any `json:"value"`
+}
+
+type GettableFeature struct {
+	Name           string         `json:"name"`
+	Kind           string         `json:"kind"`
+	Stage          string         `json:"stage"`
+	Description    string         `json:"description"`
+	DefaultVariant string         `json:"defaultVariant"`
+	Variants       map[string]any `json:"variants"`
+	ResolvedValue  any            `json:"resolvedValue"`
+}
+
+// This is the helper function to get the value of a variant of a feature
+func VariantValue[T any](feature *Feature, variant Name) (t T, detail openfeature.ProviderResolutionDetail, err error) {
+	value, ok := feature.Variants[variant]
+	if !ok {
+		err = errors.Newf(errors.TypeInvalidInput, ErrCodeFeatureVariantNotFound, "variant %s not found for feature %s in variants %v", variant.String(), feature.Name.String(), feature.Variants)
+		detail = openfeature.ProviderResolutionDetail{
+			ResolutionError: openfeature.NewGeneralResolutionError(err.Error()),
+			Reason:          openfeature.ErrorReason,
+			Variant:         feature.DefaultVariant.String(),
+		}
+		return
+	}
+
+	t, ok = value.Value.(T)
+	if !ok {
+		err = errors.Newf(errors.TypeInvalidInput, ErrCodeFeatureVariantKindMismatch, "variant %s for feature %s has type %T, expected %T", variant.String(), feature.Name.String(), value.Value, t)
+		detail = openfeature.ProviderResolutionDetail{
+			ResolutionError: openfeature.NewTypeMismatchResolutionError(err.Error()),
+			Reason:          openfeature.ErrorReason,
+			Variant:         variant.String(),
+		}
+		return
+	}
+
+	detail = openfeature.ProviderResolutionDetail{
+		Reason:  openfeature.StaticReason,
+		Variant: variant.String(),
+	}
+
+	return
+}
+
+// This is the helper function to get the variant by value for the given feature
+func VariantByValue[T comparable](feature *Feature, value T) (featureVariant *FeatureVariant, err error) {
+
+	// technically this method should not be called for object kind
+	// but just for fallback
+	if feature.Kind == KindObject {
+		// return the default variant - just for fallback
+		// ? think more on this
+		return &FeatureVariant{Variant: feature.DefaultVariant, Value: value}, nil
+	}
+
+	for _, variant := range feature.Variants {
+		if variant.Value == value {
+			return &variant, nil
+		}
+	}
+
+	return nil, errors.Newf(errors.TypeInvalidInput, ErrCodeFeatureVariantNotFound, "no variant found for value %v for feature %s in variants %v", value, feature.Name.String(), feature.Variants)
+}
+
+func NewBooleanVariants() map[Name]FeatureVariant {
+	return map[Name]FeatureVariant{
+		MustNewName("disabled"): {
+			Variant: MustNewName("disabled"),
+			Value:   false,
+		},
+		MustNewName("enabled"): {
+			Variant: MustNewName("enabled"),
+			Value:   true,
+		},
+	}
+}

pkg/types/featuretypes/kind.go

@@ -0,0 +1,14 @@
+package featuretypes
+
+import "github.com/SigNoz/signoz/pkg/valuer"
+
+// A concrete type for a feature flag kind
+type Kind struct{ valuer.String }
+
+var (
+	KindBoolean = Kind{valuer.NewString("boolean")}
+	KindString  = Kind{valuer.NewString("string")}
+	KindFloat   = Kind{valuer.NewString("float")}
+	KindInt     = Kind{valuer.NewString("int")}
+	KindObject  = Kind{valuer.NewString("object")}
+)

pkg/types/featuretypes/name.go

@@ -0,0 +1,37 @@
+package featuretypes
+
+import (
+	"regexp"
+
+	"github.com/SigNoz/signoz/pkg/errors"
+)
+
+var nameRegex = regexp.MustCompile(`^[a-z][a-z0-9_]+$`)
+
+// Name is a concrete type for a feature name.
+// We make this abstract to avoid direct use of strings and enforce
+// a consistent way to create and validate feature names.
+type Name struct {
+	s string
+}
+
+func NewName(s string) (Name, error) {
+	if !nameRegex.MatchString(s) {
+		return Name{}, errors.Newf(errors.TypeInvalidInput, errors.CodeInvalidInput, "invalid feature name: %s", s)
+	}
+
+	return Name{s: s}, nil
+}
+
+func MustNewName(s string) Name {
+	name, err := NewName(s)
+	if err != nil {
+		panic(err)
+	}
+
+	return name
+}
+
+func (n Name) String() string {
+	return n.s
+}

pkg/types/featuretypes/registry.go

@@ -0,0 +1,129 @@
+package featuretypes
+
+import (
+	"github.com/SigNoz/signoz/pkg/errors"
+	"github.com/open-feature/go-sdk/openfeature"
+)
+
+// Consumer facing interface for the feature registry
+type Registry interface {
+	// Returns the feature and the resolution detail for the given name
+	Get(name Name) (*Feature, openfeature.ProviderResolutionDetail, error)
+
+	// Returns the feature and the resolution detail for the given string name
+	GetByString(name string) (*Feature, openfeature.ProviderResolutionDetail, error)
+
+	// Returns all the features in the registry
+	List() []*Feature
+}
+
+// Concrete implementation of the Registry interface
+type registry struct {
+	features map[Name]*Feature
+}
+
+// Validates and builds a new registry from a list of features
+func NewRegistry(features ...*Feature) (Registry, error) {
+	registry := &registry{features: make(map[Name]*Feature)}
+
+	for _, feature := range features {
+		// Check if the name is unique
+		if _, ok := registry.features[feature.Name]; ok {
+			return nil, errors.Newf(errors.TypeInvalidInput, errors.CodeInvalidInput, "feature name %s already exists", feature.Name.String())
+		}
+
+		// Default variant should always be present
+		if _, ok := feature.Variants[feature.DefaultVariant]; !ok {
+			return nil, errors.Newf(errors.TypeInvalidInput, errors.CodeInvalidInput, "default variant %s not found for feature %s in variants %v", feature.DefaultVariant.String(), feature.Name.String(), feature.Variants)
+		}
+
+		switch feature.Kind {
+
+		case KindBoolean:
+			err := validateFeature[bool](feature)
+			if err != nil {
+				return nil, err
+			}
+
+		case KindString:
+			err := validateFeature[string](feature)
+			if err != nil {
+				return nil, err
+			}
+
+		case KindFloat:
+			err := validateFeature[float64](feature)
+			if err != nil {
+				return nil, err
+			}
+
+		case KindInt:
+			err := validateFeature[int64](feature)
+			if err != nil {
+				return nil, err
+			}
+
+		case KindObject:
+			err := validateFeature[any](feature)
+			if err != nil {
+				return nil, err
+			}
+
+		}
+
+		registry.features[feature.Name] = feature
+	}
+
+	return registry, nil
+}
+
+func validateFeature[T any](feature *Feature) error {
+	_, _, err := VariantValue[T](feature, feature.DefaultVariant)
+	if err != nil {
+		return err
+	}
+
+	for variant := range feature.Variants {
+		_, _, err := VariantValue[T](feature, variant)
+		if err != nil {
+			return err
+		}
+	}
+
+	return nil
+}
+
+func (r *registry) Get(name Name) (f *Feature, detail openfeature.ProviderResolutionDetail, err error) {
+	feature, ok := r.features[name]
+	if !ok {
+		err = errors.Newf(errors.TypeNotFound, ErrCodeFeatureNotFound, "feature %s not found", name.String())
+		detail = openfeature.ProviderResolutionDetail{
+			ResolutionError: openfeature.NewGeneralResolutionError(err.Error()),
+			Reason:          openfeature.ErrorReason,
+		}
+		return
+	}
+
+	return feature, openfeature.ProviderResolutionDetail{}, nil
+}
+
+func (r *registry) GetByString(name string) (f *Feature, detail openfeature.ProviderResolutionDetail, err error) {
+	featureName, err := NewName(name)
+	if err != nil {
+		detail = openfeature.ProviderResolutionDetail{
+			ResolutionError: openfeature.NewFlagNotFoundResolutionError(err.Error()),
+			Reason:          openfeature.ErrorReason,
+		}
+		return
+	}
+
+	return r.Get(featureName)
+}
+
+func (r *registry) List() []*Feature {
+	features := make([]*Feature, 0, len(r.features))
+	for _, f := range r.features {
+		features = append(features, f)
+	}
+	return features
+}

pkg/types/featuretypes/stage.go

@@ -0,0 +1,20 @@
+package featuretypes
+
+import "github.com/SigNoz/signoz/pkg/valuer"
+
+// A concrete type for a feature flag stage
+type Stage struct{ valuer.String }
+
+var (
+	// Used when the feature is experimental
+	StageExperimental = Stage{valuer.NewString("experimental")}
+
+	// Used when the feature works and in preview stage but is not ready for production
+	StagePreview = Stage{valuer.NewString("preview")}
+
+	// Used when the feature is stable and ready for production
+	StageStable = Stage{valuer.NewString("stable")}
+
+	// Used when the feature is deprecated and will be removed in the future
+	StageDeprecated = Stage{valuer.NewString("deprecated")}
+)

pkg/types/querybuildertypes/querybuildertypesv5/formula.go

@@ -153,10 +153,28 @@ func NewFormulaEvaluator(expressionStr string, canDefaultZero map[string]bool) (
 		return nil, errors.NewInvalidInputf(errors.CodeInvalidInput, "failed to parse expression")
 	}
 
+	// Normalize canDefaultZero keys to match variable casing from expression
+	normalizedCanDefaultZero := make(map[string]bool)
+	vars := expression.Vars()
+	for _, variable := range vars {
+		// If exact match exists, use it
+		if val, ok := canDefaultZero[variable]; ok {
+			normalizedCanDefaultZero[variable] = val
+			continue
+		}
+		// Otherwise try case-insensitive lookup
+		for k, v := range canDefaultZero {
+			if strings.EqualFold(k, variable) {
+				normalizedCanDefaultZero[variable] = v
+				break
+			}
+		}
+	}
+
 	evaluator := &FormulaEvaluator{
 		expression:     expression,
-		variables:      expression.Vars(),
-		canDefaultZero: canDefaultZero,
+		variables:      vars,
+		canDefaultZero: normalizedCanDefaultZero,
 		aggRefs:        make(map[string]aggregationRef),
 	}
 
@@ -281,6 +299,16 @@ func (fe *FormulaEvaluator) buildSeriesLookup(timeSeriesData map[string]*TimeSer
 		// We are only interested in the time series data for the queries that are
 		// involved in the formula expression.
 		data, exists := timeSeriesData[aggRef.QueryName]
+		if !exists {
+			// try case-insensitive lookup
+			for k, v := range timeSeriesData {
+				if strings.EqualFold(k, aggRef.QueryName) {
+					data = v
+					exists = true
+					break
+				}
+			}
+		}
 		if !exists {
 			continue
 		}

pkg/types/querybuildertypes/querybuildertypesv5/formula_test.go

@@ -864,6 +864,158 @@ func TestComplexExpression(t *testing.T) {
 	}
 }
 
+func TestCaseInsensitiveQueryNames(t *testing.T) {
+	tests := []struct {
+		name           string
+		expression     string
+		tsData         map[string]*TimeSeriesData
+		expectedValues []float64
+	}{
+		{
+			name:       "lowercase query names",
+			expression: "a / b",
+			tsData: map[string]*TimeSeriesData{
+				"A": createFormulaTestTimeSeriesData("A", []*TimeSeries{
+					{
+						Labels: createLabels(map[string]string{}),
+						Values: createValues(map[int64]float64{1: 10}),
+					},
+				}),
+				"B": createFormulaTestTimeSeriesData("B", []*TimeSeries{
+					{
+						Labels: createLabels(map[string]string{}),
+						Values: createValues(map[int64]float64{1: 2}),
+					},
+				}),
+			},
+			expectedValues: []float64{5.0},
+		},
+		{
+			name:       "mixed case query names",
+			expression: "A / b",
+			tsData: map[string]*TimeSeriesData{
+				"A": createFormulaTestTimeSeriesData("A", []*TimeSeries{
+					{
+						Labels: createLabels(map[string]string{}),
+						Values: createValues(map[int64]float64{1: 10}),
+					},
+				}),
+				"B": createFormulaTestTimeSeriesData("B", []*TimeSeries{
+					{
+						Labels: createLabels(map[string]string{}),
+						Values: createValues(map[int64]float64{1: 2}),
+					},
+				}),
+			},
+			expectedValues: []float64{5.0},
+		},
+		{
+			name:       "uppercase query names with lowercase data keys",
+			expression: "A / B",
+			tsData: map[string]*TimeSeriesData{
+				"a": createFormulaTestTimeSeriesData("a", []*TimeSeries{
+					{
+						Labels: createLabels(map[string]string{}),
+						Values: createValues(map[int64]float64{1: 10}),
+					},
+				}),
+				"b": createFormulaTestTimeSeriesData("b", []*TimeSeries{
+					{
+						Labels: createLabels(map[string]string{}),
+						Values: createValues(map[int64]float64{1: 2}),
+					},
+				}),
+			},
+			expectedValues: []float64{5.0},
+		},
+		{
+			name:       "all lowercase",
+			expression: "a/b",
+			tsData: map[string]*TimeSeriesData{
+				"a": createFormulaTestTimeSeriesData("a", []*TimeSeries{
+					{
+						Labels: createLabels(map[string]string{}),
+						Values: createValues(map[int64]float64{1: 100}),
+					},
+				}),
+				"b": createFormulaTestTimeSeriesData("b", []*TimeSeries{
+					{
+						Labels: createLabels(map[string]string{}),
+						Values: createValues(map[int64]float64{1: 10}),
+					},
+				}),
+			},
+			expectedValues: []float64{10.0},
+		},
+		{
+			name:       "complex expression with mixed case",
+			expression: "a + B * c",
+			tsData: map[string]*TimeSeriesData{
+				"A": createFormulaTestTimeSeriesData("A", []*TimeSeries{
+					{
+						Labels: createLabels(map[string]string{}),
+						Values: createValues(map[int64]float64{1: 5}),
+					},
+				}),
+				"b": createFormulaTestTimeSeriesData("b", []*TimeSeries{
+					{
+						Labels: createLabels(map[string]string{}),
+						Values: createValues(map[int64]float64{1: 3}),
+					},
+				}),
+				"C": createFormulaTestTimeSeriesData("C", []*TimeSeries{
+					{
+						Labels: createLabels(map[string]string{}),
+						Values: createValues(map[int64]float64{1: 2}),
+					},
+				}),
+			},
+			expectedValues: []float64{11.0}, // 5 + 3 * 2 = 11
+		},
+		{
+			name:       "lowercase variables with default zero missing point",
+			expression: "a + b",
+			tsData: map[string]*TimeSeriesData{
+				"A": createFormulaTestTimeSeriesData("A", []*TimeSeries{
+					{
+						Labels: createLabels(map[string]string{}),
+						Values: createValues(map[int64]float64{
+							1: 10,
+							2: 20,
+						}),
+					},
+				}),
+				"B": createFormulaTestTimeSeriesData("B", []*TimeSeries{
+					{
+						Labels: createLabels(map[string]string{}),
+						Values: createValues(map[int64]float64{
+							1: 5,
+						}),
+					},
+				}),
+			},
+			expectedValues: []float64{15.0, 20.0}, // t1: 10+5, t2: 20+0
+		},
+	}
+
+	for _, tt := range tests {
+		t.Run(tt.name, func(t *testing.T) {
+			evaluator, err := NewFormulaEvaluator(tt.expression, map[string]bool{"a": true, "A": true, "b": true, "B": true, "c": true, "C": true})
+			require.NoError(t, err)
+
+			result, err := evaluator.EvaluateFormula(tt.tsData)
+			require.NoError(t, err)
+			require.NotNil(t, result)
+
+			assert.Equal(t, 1, len(result), "should have exactly one result series")
+			assert.Equal(t, len(tt.expectedValues), len(result[0].Values), "should match expected number of values")
+			for i, v := range tt.expectedValues {
+				assert.InDelta(t, v, result[0].Values[i].Value, 0.0001, "value at index %d should match", i)
+			}
+		})
+	}
+}
+
 func TestAbsValueExpression(t *testing.T) {
 	tsData := map[string]*TimeSeriesData{
 		"A": createFormulaTestTimeSeriesData("A", []*TimeSeries{

tests/integration/fixtures/traces.py

@@ -81,7 +81,7 @@ class TracesResourceOrAttributeKeys(ABC):
         self.is_column = is_column
 
     def np_arr(self) -> np.array:
-        return np.array([self.name, self.tag_type, self.datatype, self.is_column])
+        return np.array([self.name, self.tag_type, self.datatype, self.is_column], dtype=object)
 
 
 class TracesTagAttributes(ABC):
@@ -636,8 +636,10 @@ def insert_traces(
             )
 
         attribute_keys: List[TracesResourceOrAttributeKeys] = []
+        resource_keys: List[TracesResourceOrAttributeKeys] = []
         for trace in traces:
             attribute_keys.extend(trace.attribute_keys)
+            resource_keys.extend(trace.resource_keys)
 
         if len(attribute_keys) > 0:
             clickhouse.conn.insert(
@@ -646,6 +648,13 @@ def insert_traces(
                 data=[attribute_key.np_arr() for attribute_key in attribute_keys],
             )
 
+        if len(resource_keys) > 0:
+            clickhouse.conn.insert(
+                database="signoz_traces",
+                table="distributed_span_attributes_keys",
+                data=[resource_key.np_arr() for resource_key in resource_keys],
+            )
+
         # Insert main traces
         clickhouse.conn.insert(
             database="signoz_traces",

tests/integration/src/logspipelines/__init__.py

@@ -0,0 +1,2 @@
+# Log pipelines integration tests
+

tests/integration/src/logspipelines/a_logs_pipelines.py

@@ -0,0 +1,547 @@
+"""
+Summary:
+This test file contains integration tests for log parsing pipelines in SigNoz's query service.
+It verifies the correct behavior of log pipeline CRUD operations, versioning, preview functionality,
+and pipeline processing.
+"""
+
+from http import HTTPStatus
+from typing import Callable
+
+import pytest
+import requests
+
+from fixtures import types
+from fixtures.auth import USER_ADMIN_EMAIL, USER_ADMIN_PASSWORD
+
+def test_create_logs_pipeline_success(
+    signoz: types.SigNoz,
+    create_user_admin: types.Operation,  # pylint: disable=unused-argument
+    get_token: Callable[[str, str], str],
+) -> None:
+    """
+    Setup:
+    Create a new log parsing pipeline with a simple regex parser.
+
+    Tests:
+    1. Create a pipeline with valid configuration
+    2. Verify the pipeline is created successfully
+    3. Verify the response contains version information
+    4. Verify the pipeline is returned in the response
+    """
+    token = get_token(email=USER_ADMIN_EMAIL, password=USER_ADMIN_PASSWORD)
+
+    pipeline_payload = {
+        "pipelines": [
+            {
+                "id": "",
+                "orderId": 1,
+                "name": "Test Pipeline",
+                "alias": "test-pipeline",
+                "description": "Test pipeline for integration testing",
+                "enabled": True,
+                "filter": {
+                    "operator": "AND",
+                    "items": []
+                },
+                "config": [
+                    {
+                        "type": "regex_parser",
+                        "id": "regex-parser-1",
+                        "parse_from": "body",
+                        "parse_to": "attributes",
+                        "regex": r"^(?P<timestamp>\d{4}-\d{2}-\d{2} \d{2}:\d{2}:\d{2}) (?P<level>\w+) (?P<message>.*)$",
+                        "on_error": "send"
+                    }
+                ]
+            }
+        ]
+    }
+
+    response = requests.post(
+        signoz.self.host_configs["8080"].get("/api/v1/logs/pipelines"),
+        timeout=10,
+        headers={
+            "authorization": f"Bearer {token}",
+            "content-type": "application/json",
+        },
+        json=pipeline_payload,
+    )
+
+    assert response.status_code == HTTPStatus.OK
+    response_data = response.json()
+    assert "pipelines" in response_data
+    assert len(response_data["pipelines"]) == 1
+
+    pipeline = response_data["pipelines"][0]
+    assert pipeline["name"] == "Test Pipeline"
+    assert pipeline["alias"] == "test-pipeline"
+    assert pipeline["enabled"] is True
+    assert pipeline["orderId"] == 1
+    assert len(pipeline["config"]) == 1
+    assert pipeline["config"][0]["type"] == "regex_parser"
+
+    # Verify version information
+    assert "version" in response_data
+    assert response_data["version"] == 1
+
+
+def test_list_logs_pipelines_success(
+    signoz: types.SigNoz,
+    create_user_admin: types.Operation,  # pylint: disable=unused-argument
+    get_token: Callable[[str, str], str],
+) -> None:
+    """
+    Setup:
+    Create a pipeline first, then list all pipelines.
+
+    Tests:
+    1. Create a pipeline
+    2. List all pipelines and verify the created pipeline is present
+    3. Verify the response structure
+    """
+    token = get_token(email=USER_ADMIN_EMAIL, password=USER_ADMIN_PASSWORD)
+
+    # Create a pipeline first
+    create_payload = {
+        "pipelines": [
+            {
+                "id": "",
+                "orderId": 1,
+                "name": "List Test Pipeline",
+                "alias": "list-test-pipeline",
+                "description": "Pipeline for list testing",
+                "enabled": True,
+                "filter": {
+                    "operator": "AND",
+                    "items": []
+                },
+                "config": [
+                    {
+                        "type": "json_parser",
+                        "id": "json-parser-1",
+                        "parse_from": "body",
+                        "parse_to": "attributes",
+                        "on_error": "send"
+                    }
+                ]
+            }
+        ]
+    }
+
+    create_response = requests.post(
+        signoz.self.host_configs["8080"].get("/api/v1/logs/pipelines"),
+        timeout=10,
+        headers={
+            "authorization": f"Bearer {token}",
+            "content-type": "application/json",
+        },
+        json=create_payload,
+    )
+
+    assert create_response.status_code == HTTPStatus.OK
+
+    # List pipelines
+    list_response = requests.get(
+        signoz.self.host_configs["8080"].get("/api/v1/logs/pipelines/-1"),
+        timeout=10,
+        headers={
+            "authorization": f"Bearer {token}",
+        },
+    )
+
+    assert list_response.status_code == HTTPStatus.OK
+    list_data = list_response.json()
+    assert "pipelines" in list_data
+    assert len(list_data["pipelines"]) >= 1
+
+    # Verify the created pipeline is in the list
+    pipeline_names = [p["name"] for p in list_data["pipelines"]]
+    assert "List Test Pipeline" in pipeline_names
+
+
+def test_list_logs_pipelines_by_version(
+    signoz: types.SigNoz,
+    create_user_admin: types.Operation,  # pylint: disable=unused-argument
+    get_token: Callable[[str, str], str],
+) -> None:
+    """
+    Setup:
+    Create multiple pipeline versions and list by specific version.
+
+    Tests:
+    1. Create initial pipeline (version 1)
+    2. Create updated pipeline (version 2)
+    3. List pipelines by version 1 and verify it returns the original
+    4. List pipelines by version 2 and verify it returns the updated version
+    """
+    token = get_token(email=USER_ADMIN_EMAIL, password=USER_ADMIN_PASSWORD)
+
+    # Create version 1
+    v1_payload = {
+        "pipelines": [
+            {
+                "id": "",
+                "orderId": 1,
+                "name": "Version Test Pipeline V1",
+                "alias": "version-test-v1",
+                "description": "Version 1",
+                "enabled": True,
+                "filter": {
+                    "operator": "AND",
+                    "items": []
+                },
+                "config": [
+                    {
+                        "type": "json_parser",
+                        "id": "json-parser-v1",
+                        "parse_from": "body",
+                        "parse_to": "attributes",
+                        "on_error": "send"
+                    }
+                ]
+            }
+        ]
+    }
+
+    v1_response = requests.post(
+        signoz.self.host_configs["8080"].get("/api/v1/logs/pipelines"),
+        timeout=10,
+        headers={
+            "authorization": f"Bearer {token}",
+            "content-type": "application/json",
+        },
+        json=v1_payload,
+    )
+
+    assert v1_response.status_code == HTTPStatus.OK
+    v1_data = v1_response.json()
+    assert v1_data["version"] == 1
+
+    # Create version 2
+    v2_payload = {
+        "pipelines": [
+            {
+                "id": "",
+                "orderId": 1,
+                "name": "Version Test Pipeline V2",
+                "alias": "version-test-v2",
+                "description": "Version 2",
+                "enabled": True,
+                "filter": {
+                    "operator": "AND",
+                    "items": []
+                },
+                "config": [
+                    {
+                        "type": "json_parser",
+                        "id": "json-parser-v2",
+                        "parse_from": "body",
+                        "parse_to": "attributes",
+                        "on_error": "send"
+                    }
+                ]
+            }
+        ]
+    }
+
+    v2_response = requests.post(
+        signoz.self.host_configs["8080"].get("/api/v1/logs/pipelines"),
+        timeout=10,
+        headers={
+            "authorization": f"Bearer {token}",
+            "content-type": "application/json",
+        },
+        json=v2_payload,
+    )
+
+    assert v2_response.status_code == HTTPStatus.OK
+    v2_data = v2_response.json()
+    assert v2_data["version"] == 2
+
+    # List by version 1
+    v1_list_response = requests.get(
+        signoz.self.host_configs["8080"].get("/api/v1/logs/pipelines/1"),
+        timeout=10,
+        headers={
+            "authorization": f"Bearer {token}",
+        },
+    )
+
+    assert v1_list_response.status_code == HTTPStatus.OK
+    v1_list_data = v1_list_response.json()
+    assert v1_list_data["version"] == 1
+    assert len(v1_list_data["pipelines"]) == 1
+    assert v1_list_data["pipelines"][0]["name"] == "Version Test Pipeline V1"
+
+    # List by version 2
+    v2_list_response = requests.get(
+        signoz.self.host_configs["8080"].get("/api/v1/logs/pipelines/2"),
+        timeout=10,
+        headers={
+            "authorization": f"Bearer {token}",
+        },
+    )
+
+    assert v2_list_response.status_code == HTTPStatus.OK
+    v2_list_data = v2_list_response.json()
+    assert v2_list_data["version"] == 2
+    assert len(v2_list_data["pipelines"]) == 1
+    assert v2_list_data["pipelines"][0]["name"] == "Version Test Pipeline V2"
+
+
+def test_preview_logs_pipelines_success(
+    signoz: types.SigNoz,
+    create_user_admin: types.Operation,  # pylint: disable=unused-argument
+    get_token: Callable[[str, str], str],
+) -> None:
+    """
+    Setup:
+    Create a preview request with a pipeline and sample logs.
+
+    Tests:
+    1. Send preview request with valid pipeline configuration
+    2. Verify the preview processes logs correctly
+    3. Verify the response contains processed logs
+    """
+    token = get_token(email=USER_ADMIN_EMAIL, password=USER_ADMIN_PASSWORD)
+
+    preview_payload = {
+        "pipelines": [
+            {
+                "id": "preview-pipeline-1",
+                "orderId": 1,
+                "name": "Preview Test Pipeline",
+                "alias": "preview-test",
+                "description": "Pipeline for preview testing",
+                "enabled": True,
+                "filter": {
+                    "operator": "AND",
+                    "items": []
+                },
+                "config": [
+                    {
+                        "type": "json_parser",
+                        "id": "json-parser-preview",
+                        "parse_from": "body",
+                        "parse_to": "attributes",
+                        "on_error": "send"
+                    }
+                ]
+            }
+        ],
+        "logs": [
+            {
+                "body": '{"level": "info", "message": "Test log message", "timestamp": "2024-01-01T00:00:00Z"}',
+                "timestamp": 1704067200000,
+                "attributes_string": {},
+                "attributes_number": {},
+                "attributes_bool": {},
+                "resources_string": {
+                    "service.name": "test-service"
+                },
+                "resources_number": {},
+                "resources_bool": {}
+            }
+        ]
+    }
+
+    response = requests.post(
+        signoz.self.host_configs["8080"].get("/api/v1/logs/pipelines/preview"),
+        timeout=10,
+        headers={
+            "authorization": f"Bearer {token}",
+            "content-type": "application/json",
+        },
+        json=preview_payload,
+    )
+
+    assert response.status_code == HTTPStatus.OK
+    response_data = response.json()
+    assert "logs" in response_data
+    assert len(response_data["logs"]) == 1
+
+    # Verify the log was processed
+    processed_log = response_data["logs"][0]
+    assert "attributes_string" in processed_log or "attributes" in processed_log
+
+
+def test_create_multiple_pipelines_success(
+    signoz: types.SigNoz,
+    create_user_admin: types.Operation,  # pylint: disable=unused-argument
+    get_token: Callable[[str, str], str],
+) -> None:
+    """
+    Setup:
+    Create multiple pipelines in a single request.
+
+    Tests:
+    1. Create multiple pipelines with different configurations
+    2. Verify all pipelines are created
+    3. Verify pipelines are ordered correctly
+    """
+    token = get_token(email=USER_ADMIN_EMAIL, password=USER_ADMIN_PASSWORD)
+
+    multi_pipeline_payload = {
+        "pipelines": [
+            {
+                "id": "",
+                "orderId": 1,
+                "name": "First Pipeline",
+                "alias": "first-pipeline",
+                "description": "First pipeline",
+                "enabled": True,
+                "filter": {
+                    "operator": "AND",
+                    "items": []
+                },
+                "config": [
+                    {
+                        "type": "json_parser",
+                        "id": "json-parser-1",
+                        "parse_from": "body",
+                        "parse_to": "attributes",
+                        "on_error": "send"
+                    }
+                ]
+            },
+            {
+                "id": "",
+                "orderId": 2,
+                "name": "Second Pipeline",
+                "alias": "second-pipeline",
+                "description": "Second pipeline",
+                "enabled": True,
+                "filter": {
+                    "operator": "AND",
+                    "items": []
+                },
+                "config": [
+                    {
+                        "type": "regex_parser",
+                        "id": "regex-parser-2",
+                        "parse_from": "body",
+                        "parse_to": "attributes",
+                        "regex": r"^(?P<level>\w+): (?P<message>.*)$",
+                        "on_error": "send"
+                    }
+                ]
+            }
+        ]
+    }
+
+    response = requests.post(
+        signoz.self.host_configs["8080"].get("/api/v1/logs/pipelines"),
+        timeout=10,
+        headers={
+            "authorization": f"Bearer {token}",
+            "content-type": "application/json",
+        },
+        json=multi_pipeline_payload,
+    )
+
+    assert response.status_code == HTTPStatus.OK
+    response_data = response.json()
+    assert "pipelines" in response_data
+    assert len(response_data["pipelines"]) == 2
+
+    # Verify order
+    assert response_data["pipelines"][0]["orderId"] == 1
+    assert response_data["pipelines"][0]["name"] == "First Pipeline"
+    assert response_data["pipelines"][1]["orderId"] == 2
+    assert response_data["pipelines"][1]["name"] == "Second Pipeline"
+
+
+def test_delete_all_pipelines_success(
+    signoz: types.SigNoz,
+    create_user_admin: types.Operation,  # pylint: disable=unused-argument
+    get_token: Callable[[str, str], str],
+) -> None:
+    """
+    Setup:
+    Create a pipeline first, then delete all pipelines by sending empty array.
+
+    Tests:
+    1. Create a pipeline
+    2. Delete all pipelines by sending empty pipelines array
+    3. Verify pipelines are deleted
+    4. Verify new version is created
+    """
+    token = get_token(email=USER_ADMIN_EMAIL, password=USER_ADMIN_PASSWORD)
+
+    # Create a pipeline first
+    create_payload = {
+        "pipelines": [
+            {
+                "id": "",
+                "orderId": 1,
+                "name": "Pipeline to Delete",
+                "alias": "delete-test",
+                "description": "Pipeline to be deleted",
+                "enabled": True,
+                "filter": {
+                    "operator": "AND",
+                    "items": []
+                },
+                "config": [
+                    {
+                        "type": "json_parser",
+                        "id": "json-parser-delete",
+                        "parse_from": "body",
+                        "parse_to": "attributes",
+                        "on_error": "send"
+                    }
+                ]
+            }
+        ]
+    }
+
+    create_response = requests.post(
+        signoz.self.host_configs["8080"].get("/api/v1/logs/pipelines"),
+        timeout=10,
+        headers={
+            "authorization": f"Bearer {token}",
+            "content-type": "application/json",
+        },
+        json=create_payload,
+    )
+
+    assert create_response.status_code == HTTPStatus.OK
+    initial_version = create_response.json()["version"]
+
+    # Delete all pipelines by sending empty array
+    delete_payload = {
+        "pipelines": []
+    }
+
+    delete_response = requests.post(
+        signoz.self.host_configs["8080"].get("/api/v1/logs/pipelines"),
+        timeout=10,
+        headers={
+            "authorization": f"Bearer {token}",
+            "content-type": "application/json",
+        },
+        json=delete_payload,
+    )
+
+    assert delete_response.status_code == HTTPStatus.OK
+    delete_data = delete_response.json()
+    assert "pipelines" in delete_data
+    assert len(delete_data["pipelines"]) == 0
+    assert delete_data["version"] == initial_version + 1
+
+    # Verify pipelines are deleted by listing
+    list_response = requests.get(
+        signoz.self.host_configs["8080"].get("/api/v1/logs/pipelines/-1"),
+        timeout=10,
+        headers={
+            "authorization": f"Bearer {token}",
+        },
+    )
+
+    assert list_response.status_code == HTTPStatus.OK
+    list_data = list_response.json()
+    # Note: Integration pipelines might still be present, so we check user-created ones
+    user_pipelines = [p for p in list_data["pipelines"] if p.get("name") == "Pipeline to Delete"]
+    assert len(user_pipelines) == 0
+

tests/integration/src/querier/a_logs.py

@@ -67,6 +67,7 @@ def test_logs_list(
                     "code.file": "/opt/integration.go",
                     "code.function": "com.example.Integration.process",
                     "code.line": 120,
+                    "metric.domain_id": "d-001",
                     "telemetry.sdk.language": "go",
                 },
                 body="This is a log message, coming from a go application",
@@ -141,6 +142,7 @@ def test_logs_list(
         "code.function": "com.example.Integration.process",
         "log.iostream": "stdout",
         "logtag": "F",
+        "metric.domain_id": "d-001",
         "telemetry.sdk.language": "go",
     }
     assert rows[0]["data"]["attributes_number"] == {"code.line": 120}
@@ -308,6 +310,86 @@ def test_logs_list(
     assert len(values) == 1
     assert 120 in values
 
+    # Query keys from the fields API with context specified in the key
+    response = requests.get(
+        signoz.self.host_configs["8080"].get("/api/v1/fields/keys"),
+        timeout=2,
+        headers={
+            "authorization": f"Bearer {token}",
+        },
+        params={
+            "signal": "logs",
+            "searchText": "resource.servic",
+        },
+    )
+
+    assert response.status_code == HTTPStatus.OK
+    assert response.json()["status"] == "success"
+
+    keys = response.json()["data"]["keys"]
+    assert "service.name" in keys
+    assert any(k["fieldContext"] == "resource" for k in keys["service.name"])
+
+    # Do not treat `metric.` as a context prefix for logs
+    response = requests.get(
+        signoz.self.host_configs["8080"].get("/api/v1/fields/keys"),
+        timeout=2,
+        headers={
+            "authorization": f"Bearer {token}",
+        },
+        params={
+            "signal": "logs",
+            "searchText": "metric.do",
+        },
+    )
+
+    assert response.status_code == HTTPStatus.OK
+    assert response.json()["status"] == "success"
+
+    keys = response.json()["data"]["keys"]
+    assert "metric.domain_id" in keys
+
+    # Query values of service.name resource attribute using context-prefixed key
+    response = requests.get(
+        signoz.self.host_configs["8080"].get("/api/v1/fields/values"),
+        timeout=2,
+        headers={
+            "authorization": f"Bearer {token}",
+        },
+        params={
+            "signal": "logs",
+            "name": "resource.service.name",
+            "searchText": "",
+        },
+    )
+
+    assert response.status_code == HTTPStatus.OK
+    assert response.json()["status"] == "success"
+
+    values = response.json()["data"]["values"]["stringValues"]
+    assert "go" in values
+    assert "java" in values
+
+    # Query values of metric.domain_id (string attribute) and ensure context collision doesn't break it
+    response = requests.get(
+        signoz.self.host_configs["8080"].get("/api/v1/fields/values"),
+        timeout=2,
+        headers={
+            "authorization": f"Bearer {token}",
+        },
+        params={
+            "signal": "logs",
+            "name": "metric.domain_id",
+            "searchText": "",
+        },
+    )
+
+    assert response.status_code == HTTPStatus.OK
+    assert response.json()["status"] == "success"
+
+    values = response.json()["data"]["values"]["stringValues"]
+    assert "d-001" in values
+
 
 def test_logs_time_series_count(
     signoz: types.SigNoz,

tests/integration/src/querier/b_traces.py

@@ -373,3 +373,43 @@ def test_traces_list(
     assert len(values) == 2
 
     assert set(values) == set(["POST", "PATCH"])
+
+    # Query keys from the fields API with context specified in the key
+    response = requests.get(
+        signoz.self.host_configs["8080"].get("/api/v1/fields/keys"),
+        timeout=2,
+        headers={
+            "authorization": f"Bearer {token}",
+        },
+        params={
+            "signal": "traces",
+            "searchText": "resource.servic",
+        },
+    )
+
+    assert response.status_code == HTTPStatus.OK
+    assert response.json()["status"] == "success"
+
+    keys = response.json()["data"]["keys"]
+    assert "service.name" in keys
+    assert any(k["fieldContext"] == "resource" for k in keys["service.name"])
+
+    # Query values of service.name resource attribute using context-prefixed key
+    response = requests.get(
+        signoz.self.host_configs["8080"].get("/api/v1/fields/values"),
+        timeout=2,
+        headers={
+            "authorization": f"Bearer {token}",
+        },
+        params={
+            "signal": "traces",
+            "name": "resource.service.name",
+            "searchText": "",
+        },
+    )
+
+    assert response.status_code == HTTPStatus.OK
+    assert response.json()["status"] == "success"
+
+    values = response.json()["data"]["values"]["stringValues"]
+    assert set(values) == set(["topic-service", "http-service"])