App.use is not a function error in Express js

Question

I am trying to create a seperate file that will hold all the modules that I'm using in the project. But it is giving me app.use is not a function error.

I'v been spending alot of time on this. So, I just wanted to know if this is even possible.

Code that I have tried so far.

index.js

const requireModules = require("./require");

for (let keys in requireModules) {
   app.use(keys);
}

Require.js

const cors = require("cors");
const morgan = require("morgan");
const helmet = require("helmet");

module.exports = {
   cors: cors(),
   morgan: morgan("common"),
   helmet: helmet(),
};

Iyanu Adelekan · Accepted Answer · 2020-06-14 23:24:56Z

2

You must create an app instance before invoking app.use():

const requireModules = require("./require");
const express = require('express');
const app = express(); // app instance.

Object.values(requireModules).forEach(lib => app.use(lib));

answered Jun 14, 2020 at 23:24

Iyanu Adelekan

4063 silver badges7 bronze badges

Sign up to request clarification or add additional context in comments.

1 Comment

Thanveer Shah Over a year ago

Yes those were already set. I was using Object.keys instead of Object.values. Thanks man <3

Collectives™ on Stack Overflow

App.use is not a function error in Express js

1 Answer 1

1 Comment

Your Answer

Hot Network Questions

Collectives™ on Stack Overflow

1 Answer 1

1 Comment

Your Answer

Sign up or log in

Post as a guest

Related