nconf - Tuong-Nguyen/JavaScript-Structure GitHub Wiki

Key-Value store which can load data from:

• nconf.argv(options) Loads process.argv using yargs. If options is supplied it is passed along to yargs.
• nconf.env(options) Loads process.env into the hierarchy.
• nconf.file(options) Loads the configuration data at options.file into the hierarchy.
• nconf.defaults(options) Loads the data in options.store into the hierarchy.
• nconf.overrides(options) Loads the data in options.store into the hierarchy.

nconf.overrides({
  Database: {
    host: "192.168.104.45",
    db: "voteApp",
    port: 27017
  }
});
// Database:port -> Database__port = 27017
nconf.env("__");

// --dbport=27017
nconf.argv({
  dbport: {
    alias: 'Database:port',
    describe: 'Database port'
  },
  dbhost: {
    alias: 'Database:host',
    describe: 'Database host'
  },
  dbname: {
    alias: 'Database:db',
    describe: 'Database name'
  }
});
nconf.file({file: `${__dirname}/env.json`});
nconf.defaults({
  Database: {
    host: "192.168.104.45",
    db: "voteApp",
    port: 27017
  }
});

nconf.get('database:port');

Suggested priority: Defaults > file > argv > env > overrides