examples/node/static_codegen/greeter_client.js

/*
 *
 * Copyright 2015 gRPC authors.
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 *
 */

var parseArgs = require('minimist');
var messages = require('./helloworld_pb');
var services = require('./helloworld_grpc_pb');

var grpc = require('@grpc/grpc-js');

function main() {
  var argv = parseArgs(process.argv.slice(2), {
    string: 'target'
  });
  var target;
  if (argv.target) {
    target = argv.target;
  } else {
    target = 'localhost:50051';
  }
  var client = new services.GreeterClient(target,
                                          grpc.credentials.createInsecure());
  var request = new messages.HelloRequest();
  var user;
  if (argv._.length > 0) {
    user = argv._[0]; 
  } else {
    user = 'world';
  }
  request.setName(user);
  client.sayHello(request, function(err, response) {
    console.log('Greeting:', response.getMessage());
  });
}

main();