Jaeger: Migrate API calls to gRPC endpoint (#113297)

* Jaeger: Migrate Services and Operations to the gRPC Jaeger endpoint (#112384)

* add grpc feature toggle

* move types into types.go

* creates grpc client functions for services and operations

* Call grpc services function when feature flag is enabled for health check

* remove unnecessary double encoding

* check for successful status code before decoding response and return nil in case of successful response

* remove duplicate code

* use variable

* fix error type in testsz

* Jaeger: Migrate search and Trace Search calls to use gRPC endpoint (#112610)

* move all types into types package except for JagerClient

* move all helper functions into utils package

* change return type of search function to be frames and add grpc search functionality

* fix tests

* fix types and the way we check error response from grpc

* change trace name and duration unit conversion

* fix types and add tests

* support queryAttributes

* quick limit implementation in post processing

* add todo for attributes / tags

* make trace functionality ready to support grpc flow

* add functions to process search response for a specific trace and create the Trace frame

* tests for helper funtions

* remove grpc querying for now!

* change logic to be able to process and support multiple resource spans

* remove logic for gRPC from grpc_client.go

* add equivalent fields for logs and references

* add tests for grpcTraceResponse function

* fix types after merge with main

* fix status code checks and return nil for error on successful responses

* enable reading through config flag for trace search

* create sigle key value type since they are similar for OTLP and non OTLP based formats

* reference right type

* convert events and links into references and logs

* add status code, status message and kind to data frame

* fix tests to accomodate new format

* remove unused function and add more tests

* remove edit flag for jsonc golden test files

* add clarifying comment

* fix tests and linting

* fix golden files for testing

* fix typo

Co-authored-by: Copilot <175728472+Copilot@users.noreply.github.com>

* fix typo

Co-authored-by: Copilot <175728472+Copilot@users.noreply.github.com>

* fix typo

Co-authored-by: Copilot <175728472+Copilot@users.noreply.github.com>

* add clarifying comment

Co-authored-by: Copilot <175728472+Copilot@users.noreply.github.com>

* remove unnecessary logging statement

* fix downstream errors

---------

Co-authored-by: Copilot <175728472+Copilot@users.noreply.github.com>

* use downstreamerrorf where applicable and add missing downstream eror sources.

* tests

---------

Co-authored-by: ismail simsek <ismailsimsek09@gmail.com>
Co-authored-by: Copilot <175728472+Copilot@users.noreply.github.com>

pkg/services/featuremgmt/registry.go

@@ -2115,6 +2115,12 @@ var (
 			Owner:        grafanaFrontendPlatformSquad,
 			Expression:   "true",
 		},
+		{
+			Name:        "jaegerEnableGrpcEndpoint",
+			Description: "Enable querying trace data through Jaeger's gRPC endpoint (HTTP)",
+			Stage:       FeatureStageExperimental,
+			Owner:       grafanaOSSBigTent,
+		},
 		{
 			Name:         "pluginStoreServiceLoading",
 			Description:  "Load plugins on store service startup instead of wire provider, and call RegisterFixedRoles after all plugins are loaded",

pkg/services/featuremgmt/toggles_gen.csv

@@ -272,6 +272,7 @@ cdnPluginsUrls,experimental,@grafana/plugins-platform-backend,false,false,false
 pluginInstallAPISync,experimental,@grafana/plugins-platform-backend,false,false,false
 newGauge,experimental,@grafana/dataviz-squad,false,false,true
 preventPanelChromeOverflow,preview,@grafana/grafana-frontend-platform,false,false,true
+jaegerEnableGrpcEndpoint,experimental,@grafana/oss-big-tent,false,false,false
 pluginStoreServiceLoading,experimental,@grafana/plugins-platform-backend,false,false,false
 onlyStoreActionSets,GA,@grafana/identity-access-team,false,false,false
 panelTimeSettings,experimental,@grafana/dashboards-squad,false,false,false

pkg/services/featuremgmt/toggles_gen.go

@@ -1098,6 +1098,10 @@ const (
 	// Restrict PanelChrome contents with overflow: hidden;
 	FlagPreventPanelChromeOverflow = "preventPanelChromeOverflow"
 
+	// FlagJaegerEnableGrpcEndpoint
+	// Enable querying trace data through Jaeger's gRPC endpoint (HTTP)
+	FlagJaegerEnableGrpcEndpoint = "jaegerEnableGrpcEndpoint"
+
 	// FlagPluginStoreServiceLoading
 	// Load plugins on store service startup instead of wire provider, and call RegisterFixedRoles after all plugins are loaded
 	FlagPluginStoreServiceLoading = "pluginStoreServiceLoading"

pkg/services/featuremgmt/toggles_gen.json

@@ -2062,6 +2062,18 @@
         "hideFromDocs": true
       }
     },
+    {
+      "metadata": {
+        "name": "jaegerEnableGrpcEndpoint",
+        "resourceVersion": "1760451551713",
+        "creationTimestamp": "2025-10-14T14:19:11Z"
+      },
+      "spec": {
+        "description": "Enable querying trace data through Jaeger's gRPC endpoint (HTTP)",
+        "stage": "experimental",
+        "codeowner": "@grafana/oss-big-tent"
+      }
+    },
     {
       "metadata": {
         "name": "jitterAlertRulesWithinGroups",