Use DefinitelyTyped
- Install express types
npm install --save-dev @types/express
- use e.Response as usually
@param {e.Response} res
More types
- in file
/node_modules/@types/express/index.d.ts
- for Response it is e.Response because:
...
declare namespace e {
...
export interface Response extends core.Response { }
...
WebStorm
install types via Settings > Languages & Frameworks > Javascript > Libraries > @types/express