github.com/GoogleCloudPlatform/golang-samples/run/grpc-server-streaming

Cloud Run gRPC Server Streaming sample application

For a general introduction to gRPC on Go, see the official gRPC quickstart.

This sample presents:

• ./server: a gRPC server application with an RPC that streams the current time in the response (written in Go)
• ./client: a small program to query the server and show the response messages (written in Go)

Deploy gRPC server to Cloud Run

Use the following button to deploy the application to Cloud Run on your GCP project:

Once deployed successfully, note the domain name (hostname) of the service.

Make a request using the client

• Ensure Go 1.13 (or higher) is installed on your machine.

• Clone this repository.

• Run the client with the hostname of the deployed service:

  cd grpc-server-streaming
  

  go run ./client -duration 5 -server <HOSTNAME>:443
  

• Observe the output, it should be receiving and printing a message every second as the server sends them.

  rpc established to timeserver, starting to stream
  received message: current_timestamp: 2020-01-15T01:12:29Z
  received message: current_timestamp: 2020-01-15T01:12:30Z
  received message: current_timestamp: 2020-01-15T01:12:31Z
  received message: current_timestamp: 2020-01-15T01:12:32Z
  received message: current_timestamp: 2020-01-15T01:12:33Z
  end of stream
  

Cleanup

Remove the grpc-server-streaming Service you deployed from Cloud Run using the Cloud Console.