tutorial/nodejs/NodeClientPromise.js

/*
 * Licensed to the Apache Software Foundation (ASF) under one
 * or more contributor license agreements. See the NOTICE file
 * distributed with this work for additional information
 * regarding copyright ownership. The ASF licenses this file
 * to you 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 thrift = require('thrift');
var Calculator = require('./gen-nodejs/Calculator');
var ttypes = require('./gen-nodejs/tutorial_types');
const assert = require('assert');

var transport = thrift.TBufferedTransport;
var protocol = thrift.TBinaryProtocol;

var connection = thrift.createConnection("localhost", 9090, {
  transport : transport,
  protocol : protocol
});

connection.on('error', function(err) {
  assert(false, err);
});

// Create a Calculator client with the connection
var client = thrift.createClient(Calculator, connection);


client.ping()
  .then(function() {
    console.log('ping()');
  });

client.add(1,1)
  .then(function(response) {
	  console.log("1+1=" + response);
  });

work = new ttypes.Work();
work.op = ttypes.Operation.DIVIDE;
work.num1 = 1;
work.num2 = 0;

client.calculate(1, work)
  .then(function(message) {
	console.log('Whoa? You know how to divide by zero?');
  })
  .catch(function(err) {
    console.log("InvalidOperation " + err);
  });


work.op = ttypes.Operation.SUBTRACT;
work.num1 = 15;
work.num2 = 10;

client.calculate(1, work)
  .then(function(value) {
	  console.log('15-10=' + value);
	  return client.getStruct(1);
  })
  .then(function(message) {
      console.log('Check log: ' + message.value);
  })
  .finally(function() {
	  //close the connection once we're done
      connection.end();
  });