Graphite: Backend tags autocomplete endpoint (#110772)

* Add lint rules * Backend decoupling - Add standalone files - Add graphite query type - Add logger to Service - Create logger in the ProvideService method - Use a pointer for the HTTP client provider - Update logger usage everywhere - Update tracer type - Replace simplejson with json - Add dummy CallResource and CheckHealth methods - Update tests * Update ConfigEditor imports * Update types imports * Update datasource - Switch to using semver package - Update imports * Update store imports * Update helper imports and notification creation * Update context import * Update version numbers and logic * Copy array_move from core * Test updates * Add required files and update plugin.json * Update core references and packages * Remove commented code * Update wire * Lint * Fix import * Copy null type * More lint * Update snapshot * Refactor backend - Split query logic into separate file - Move utils to separate file * Add health-check logic - Support backend healthcheck if the FF is enabled * Remove query import support as unneeded * Add test * Add util function for decoding responses * Add events types * Add resource handler * Add events handler and generic resource req handler * Tests * Update frontend - Add types - Update events function to support backend requests * Lint and typing * Lint * Add metrics find endpoint - Add types - Add generic response parser - Add endpoint - Tests * Update FE functoin to use backend endpoint * Lint * Simplify request * Update test * Metrics expand type * Extract shared logic and add metric expand endpoint * Update tests * Call metric expand from backend * Rename type for clarity * Add get resource req handler * Refactor doGraphiteRequest, parseResponse Update tests * Migrate functions endpoint to backend * Support tags autocomplete in backend - Add tests - Add types - Remove unneeded comments * Add tests * Review * Review * Fix packages * Format * Fix merge issues * Review * Fix undefined values * Extract request creation - Add method for create requests generically with tests - Replace usage in query method - Update usages in resource handlers - Update tests - Update types
2025-09-12 23:53:09 +01:00
parent 3081ac166a
commit 211c0ca5c3
4 changed files with 157 additions and 4 deletions
@@ -25,6 +25,7 @@ func (s *Service) newResourceMux() *http.ServeMux {
 	mux.HandleFunc("/metrics/find", handleResourceReq(s.handleMetricsFind, s))
 	mux.HandleFunc("/metrics/expand", handleResourceReq(s.handleMetricsExpand, s))
 	mux.HandleFunc("/functions", handleResourceReq(s.handleFunctions, s))
+	mux.HandleFunc("/tags/autoComplete/tags", handleResourceReq(s.handleTagsAutocomplete, s))
 	return mux
 }

@@ -203,6 +204,35 @@ func (s *Service) handleMetricsExpand(ctx context.Context, dsInfo *datasourceInf
 	return metricsExpandResponse, statusCode, nil
 }

+func (s *Service) handleTagsAutocomplete(ctx context.Context, dsInfo *datasourceInfo, tagsAutocompleteRequestJson *GraphiteTagsRequest) ([]byte, int, error) {
+	queryParams := map[string]string{
+		"from":      tagsAutocompleteRequestJson.From,
+		"until":     tagsAutocompleteRequestJson.Until,
+		"limit":     fmt.Sprintf("%d", tagsAutocompleteRequestJson.Limit),
+		"tagPrefix": tagsAutocompleteRequestJson.TagPrefix,
+	}
+	req, err := s.createRequest(ctx, dsInfo, URLParams{
+		SubPath:     "tags/autoComplete/tags",
+		Method:      http.MethodGet,
+		QueryParams: queryParams,
+	})
+	if err != nil {
+		return nil, http.StatusInternalServerError, fmt.Errorf("failed to create metrics expand request %v", err)
+	}
+
+	tags, _, statusCode, err := doGraphiteRequest[[]string](ctx, dsInfo, s.logger, req, false)
+	if err != nil {
+		return nil, statusCode, fmt.Errorf("tags autocomplete request failed: %v", err)
+	}
+
+	tagsResponse, err := json.Marshal(tags)
+	if err != nil {
+		return nil, http.StatusInternalServerError, fmt.Errorf("failed to marshal tags autocomplete response: %s", err)
+	}
+
+	return tagsResponse, statusCode, nil
+}
+
 func (s *Service) handleFunctions(ctx context.Context, dsInfo *datasourceInfo, _ *any) ([]byte, int, error) {
 	req, err := s.createRequest(ctx, dsInfo, URLParams{
 		SubPath: "functions",