feat: Integrate Tailcall with OpenTelemetry

cmd/saga/start/service/service.go

@@ -38,6 +38,9 @@ func (s *Service) CreateOnboardingWorkflow(
 	ctx context.Context,
 	req *connect.Request[temporalPB.CreateOnboardingWorkflowRequest],
 ) (*connect.Response[temporalPB.CreateOnboardingWorkflowResponse], error) {
+
+	log.Info("received request", "headers", req.Header())
+
 	temporalClient := s.client
 
 	// Validate the request

tailcall/server.graphql

@@ -9,7 +9,16 @@ schema
   )
 
   # Specify a base url for all HTTP requests.
-  @upstream(timeout: 5) {
+  @upstream(timeout: 5)
+
+  @telemetry(
+    export: {
+      otlp: {
+        url: "http://localhost:4317"
+      }
+    }
+  ) {
+
   query: Query
   mutation: Mutation
 }

taskfiles/run.yml

@@ -21,7 +21,7 @@ tasks:
     cmds:
       - pkgx killport 8000
       - |
-        pkgx tailcall start \
+        pkgx tailcall@latest start \
           ./tailcall/server.graphql \
           ./tailcall/org.graphql \
           ./tailcall/profile.graphql \