How is it better to export settings from a file in Node, what are the rules?

Question

Node.js

Now:

// Настройки по умолчанию
var configDefault = {
  hello: "i dont understand",
  bye: "bye"
}
try {
  const configFile = require('./config');
  if(typeof gulpconfigFile === "object")
    var gulpconfig = Object.assign({}, configDefault, configFile)
} catch(e) {
  var config = configDefault;
}

And how to do the best?

Answer 1

There is a powerful package: https://www.npmjs.com/package/config.
On your knee, you can simply create default.js, production.js, test.js and local.js, read requirethem from each other as needed and overwrite properties using Object.assign (that is, approximately as you have), and from index .js include the one you need, based on the environment variables.

Answer 2

Yes, you have an acceptable option to some extent. Look towards this module https://github.com/flatiron/nconf