examples/node/greeter_client.js

/*
 *
 * Copyright 2015, Google Inc.
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 * modification, are permitted provided that the following conditions are
 * met:
 *
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 * notice, this list of conditions and the following disclaimer.
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 * copyright notice, this list of conditions and the following disclaimer
 * in the documentation and/or other materials provided with the
 * distribution.
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 * contributors may be used to endorse or promote products derived from
 * this software without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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var grpc = require('grpc');

var hello_messages = require('./helloworld_pb');
var hello_service = require('./helloworld_grpc_pb');

function main() {
  var client = new hello_service.GreeterClient('localhost:50051',
                                               grpc.credentials.createInsecure());
  var user;
  if (process.argv.length >= 3) {
    user = process.argv[2];
  } else {
    user = 'world';
  }

  var request = new hello_messages.HelloRequest();
  request.setName(user);

  client.sayHello(request, function(err, response) {
    if (err) {
      debugger;
      throw err;
    }
    console.log('Greeting:', response.getMessage());
  });
}

main();