implement express controller class with typescript

Question

I\'m doing an express app with typescript. The router code is:

let user = new User();
router.get(\"/\", user.test);

the user class is

Answer 1

You can use export default and instantiate the controller so it can be used without instantiation in whichever file you've imported the controller.

register.controller.ts

import { Router, Request, Response, NextFunction } from 'express';

class Register {

    constructor() {    
      this.register = this.register.bind(this);
    }

    register(req: Request, res: Response, next: NextFunction) {
      // ... removed for brevity
    }
}

export default new Register();

server.ts or auth.routes.ts

import registerCtrl from '../controllers/auth/register.controller.js';

// ... removed for brevity

router.post('/register', registerCtrl.register);