server.js

// Copyright 2019 Google LLC
//
// 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.

'use strict';

// [START cloud_tasks_appengine_quickstart]
const bodyParser = require('body-parser');
const express = require('express');

const app = express();
app.enable('trust proxy');

// By default, the Content-Type header of the Task request is set to "application/octet-stream"
// see https://cloud.google.com/tasks/docs/reference/rest/v2beta3/projects.locations.queues.tasks#AppEngineHttpRequest
app.use(bodyParser.raw({type: 'application/octet-stream'}));

app.get('/', (req, res) => {
  // Basic index to verify app is serving
  res.send('Hello, World!').end();
});

app.post('/log_payload', (req, res) => {
  // Log the request payload
  console.log('Received task with payload: %s', req.body);
  res.send(`Printed task payload: ${req.body}`).end();
});

app.get('*', (req, res) => {
  res.send('OK').end();
});

const PORT = process.env.PORT || 8080;
app.listen(process.env.PORT || 8080, () => {
  console.log(`App listening on port ${PORT}`);
  console.log('Press Ctrl+C to quit.');
});
// [END cloud_tasks_appengine_quickstart]