I\'m doing an express app with typescript. The router code is:
let user = new User();
router.get(\"/\", user.test);
the user class is
You need to use the bind function to keep the scope of this
when the method is invoked:
let user = new User();
router.get("/", user.test.bind(user));
Or you can do that in the User
constructor:
export class User {
constructor() {
this.test = this.test.bind(this);
}
test(req, res, next) {
...
}
}
Another option is to use an arrow function:
let user = new User();
router.get("/", (req, res, next) => user.test(req, res, next));
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);