I am trying to custom my own Response interface to extends some methods instead of using default Response type of Express.js but I am getting an TypeScript error:

The last overload gave the following error. Argument of type ‘(req:
Request, res: CustomResponse, next: NextFunction) => void’ is not
assignable to parameter of type ‘PathParams’.ts(2769)

I have researched many different ways to solve this issue such as: declare namespace but it didn’t really work for me so I decided to choose another way which is custom my interface that extending from Response interface of Express.js. Below is my code:

import { Response } from 'express';

interface CustomResponse extends Response {
   myMethod: () => void;
}

...

app.use((req: Request, res: CustomResponse, next: NextFunction) => {  // <=== error causing from CustomResponse
   res.myMethod();
});