This sample demonstrates how to use Google Cloud Endpoints using a Java backend that supports multiple versions.

For more information, see the Google Cloud Endpoints documentation on Running multiple API versions.

Please refer to the Google Cloud Endpoints documentation for App Engine Flexible Environment to learn about creating an API Key and calling your API.

By using Endpoints, you get access to several metrics that are displayed graphically in the Cloud Console.

To view the Endpoints graphs:

1. Go to the Endpoints section in Cloud Console of the project you deployed your API to.
2. Click on your API to view more detailed information about the metrics collected.