config.js

// Copyright 2017, Google, Inc.
// 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';

// Hierarchical node.js configuration with command-line arguments, environment
// variables, and files.
const nconf = (module.exports = require('nconf'));
const path = require('path');

nconf
  // 1. Command-line arguments
  // .argv() // Uncomment to allow override by argument
  // 2. Environment variables
  // .env(['NODE_ENV']) // Uncomment to allow override by environment variable
  // 3. Config file
  // .file({file: path.join(__dirname, 'config.json')}) // Uncomment to allow override by data file
  // 4. Defaults
  .defaults({
    CLOUD_BUCKET: 'xenphonia-bucket',
    SVG_TO_OTF_SERVICE_URL: 'https://svg2otf-ujzvhu72lq-uc.a.run.app',
    PORT: 8080,
  });

// Check for required settings
checkConfig('CLOUD_BUCKET');
checkConfig('SVG_TO_OTF_SERVICE_URL');
checkConfig('PORT');

function checkConfig(setting) {
  if (!nconf.get(setting)) {
    throw new Error(
      `You must set ${setting} as an environment variable or in config.json!`
    );
  }
}