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Event Handler

The function to call for various events on the gRPC stream. It is set up using the stream.on() method.

NameTypeDescription
dataobject or ErrorIt’s either object with the data from server (a message) or an error object, in case of error event
metadataMetadataThe object that represents the gRPC stream’s message metadata.

Example

JavaScript 
import { Client, Stream } from 'k6/net/grpc';
import { sleep } from 'k6';

const client = new Client();
client.load([], '../../grpc_server/route_guide.proto');

export default () => {
  if (__ITER == 0) {
    client.connect('127.0.0.1:10000', { plaintext: true });
  }

  const stream = new Stream(client, 'main.RouteGuide/RecordRoute');

  // sets up a handler for the data (server sends data) event
  stream.on('data', (stats, metadata) => {
    console.log('It took', stats.elapsedTime, 'seconds');
    console.log('This message has been received:', metadata.ts);
  });

  stream.on('end', function () {
    // The server has finished sending
    client.close();
  });

  sleep(1);
};