text: // Copyright 2021 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.
  
  const {redisClient} = require('./redis');
  const pkg = require('./package');
  const server = require('./app');
  
  const PORT = parseInt(process.env.PORT) || 8080;
  
  // Start server
  server.listen(PORT, () =>
    console.log(`${pkg.name}: listening on port ${PORT}`)
  );
  
  // Clean up resources on shutdown
  process.on('SIGTERM', () => {
    console.log(`${pkg.name}: received SIGTERM`);
    redisClient.quit();
    process.exit(0);
  });
  
  module.exports = server;
  