Return the tracerProvider

README.md

@@ -7,7 +7,7 @@ Note that both of these can't be enabled at the same time, first we check if the
 ## Install
 
 ```
-go get github.com/dentech-floss/[email protected].0
+go get github.com/dentech-floss/[email protected].1
 ```
 
 ## Usage
@@ -29,7 +29,7 @@ func main() {
 
     metadata := metadata.NewMetadata()
 
-    shutdownTracing := telemetry.SetupTracing(
+    tracerProvider, shutdownTracing := telemetry.SetupTracing(
         ctx,
         &telemetry.TracingConfig{
             ServiceName:           revision.ServiceName,
@@ -42,6 +42,10 @@ func main() {
         },
     )
     defer shutdownTracing()
+
+    // And if you want to do manual instrumentation in your service then create a tracer 
+    // and inject it where needed, otherwise you don't need the tracerProvider variable
+    // tracer := tracerProvider.Tracer(revision.ServiceName)
 }
 ```
 

pkg/telemetry/tracing.go

@@ -44,10 +44,7 @@ func (c *TracingConfig) setDefaults() {
 	}
 }
 
-func SetupTracing(
-	ctx context.Context,
-	config *TracingConfig,
-) func() {
+func SetupTracing(ctx context.Context, config *TracingConfig) (*sdktrace.TracerProvider, func()) {
 	config.setDefaults()
 
 	// Create a resource describing this application
@@ -101,7 +98,7 @@ func SetupTracing(
 		propagation.Baggage{},
 	))
 
-	return func() {
+	return tracerProvider, func() {
 		tracerProvider.ForceFlush(ctx)
 		tracerProvider.Shutdown(ctx)
 	}