doc: add usage to README.md of gcp detector (#2002)

Co-authored-by: Valentin Marchaud <contact@vmarchaud.fr>
open-telemetry · Mar 24, 2021 · 3b13b5b · 3b13b5b
1 parent 69f2d3c
commit 3b13b5b
Showing 1 changed file with 9 additions and 1 deletion.
diff --git a/packages/opentelemetry-resource-detector-gcp/README.md b/packages/opentelemetry-resource-detector-gcp/README.md
@@ -19,7 +19,15 @@ npm install --save @opentelemetry/resource-detector-gcp
 
 ## Usage
 
-> TODO
+```typescript
+import { detectResources } from '@opentelemetry/resources';
+import { gcpDetector } from '@opentelemetry/resource-detector-gcp'
+const resource = await detectResources({
+   detectors: [gcpDetector],
+})
+
+const tracerProvider = new NodeTracerProvider({ resource });
+```
 
 ## Useful links