NestJs redirect without response usage

Is it possible to make a redirect from a Nest controller without the usage of the Response object?

For now I know that we can only do this via direct Response object injection into the route handler.

You can write a RedirectInterceptor:

@Injectable()
export class RedirectInterceptor implements NestInterceptor {
  intercept(context: ExecutionContext, stream$: Observable<any>): Observable<any> {
    const response = context.switchToHttp().getResponse();
    response.redirect('redirect-target');
    return stream$;
  }
}

Then use it in your controller like this:

@Get('user')
@UseInterceptors(RedirectInterceptor)
getUser() {
  // will be redirected.
}

It is important not to return anything from your controller, otherwise you will get the following error: Can't set headers after they are sent.

If needed the RedirectInterceptor can be dynamic as well:

@Injectable()
export class RedirectInterceptor implements NestInterceptor {
  constructor(private readonly target: string) {}
              ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^

  intercept(context: ExecutionContext, stream$: Observable<any>): Observable<any> {
    const response = context.switchToHttp().getResponse();
    response.redirect(this.target);
                      ^^^^^^^^^^^
    return stream$;
  }
}

and then in the controller:

@UseInterceptors(new RedirectInterceptor('redirect-target'))