apollo/config/configuration.js

const Ajv = require("ajv");
const fs = require("fs");
const logger = require("../services/logging");
const yaml = require("js-yaml");

const configurationBase = {
  plex: {
    url: null,
    token: null,
    filters: [] // { library, ip, deviceId, platform, product }
  },
  scrobble: {
    minimum: {
      percent: null,
      duration: null
    },
  },
  spotify: {
    client_id: null,
    client_secret: null,
    redirect_uri: null
  },
  web: {
    host: null,
    port: null
  }
};

const configurationFile = yaml.load(fs.readFileSync('config/config.yml'), yaml.JSON_SCHEMA);
const configuration = { ...configurationBase, ...configurationFile }

const ajv = new Ajv({ allErrors: true });
const schema = require("./config.schema");
const { exit } = require("process");
const validation = ajv.compile(schema);
const valid = validation(configurationFile);

if (!valid) {
  logger.error("Configuration is invalid. " + validation.errors.map(e => e.message).join(". ") + ".");
  (async () => { await new Promise(resolve => setTimeout(resolve, 1000)); exit(1); })();
}

module.exports = configuration;