Re-requiring module that parent requires

Question

I'm in the process of learning NodeJS (using Express), and came across something that struck me as odd.

In app.js i'm requiring a module (passport in this case), and then requiring a second module (passport-strats.js) which I developed. Inside of passports-strats I have to re-require passport even though it's already required in app.js.

This isn't the only example, I have some modules required in three files that are all tightly related. Is this standard or am I missing some crucial piece of structuring NodeJS applications?

Answer 1

For you require the passport module once you should require it in passport-strats.js and export it from this module. In app.js you can use both modules just importing passport-strats.js. ie:

//passport-strats.js

var {passport} = require("./path");
//other code

module.exports = { passport, someVariableFromCurrentModel };


//In app.js

var {passport, someVariableFromCurrentModel} = require("./passport-strats");