The asynchronous middleware does not work within controller

[yangjdb]

I'm submitting a...

[ ] Regression 
[x] Bug report
[ ] Feature request
[ ] Documentation issue or request
[ ] Support request => Please do not submit support request here, instead post your question on Stack Overflow.

Current behavior

The Asynchronous middleware does not work within controller
code e.g:

middleware file:

@Injectable()
export class ResponseMiddleware implements NestMiddleware {
    async resolve(name: string): Promise<MiddlewareFunction> {
        return async (req, res, next) => {
            try {
                console.log(`Request...`, name);     //step into breakpoint 1
                res.state ? void(0) : res.state = {};   //step into breakpoint 2
                await next();                   //step into breakpoint 3
                res.json(res.body ? res.body : {       //step into breakpoint 5
                    code: res.state.code !== undefined ? res.state.code : 0,
                    data: res.state.data !== undefined ? res.state.data : {},
                });
            } catch (e) {
                console.error('Catch Error: %o', e);
                res.status(200);
                res.json({
                    code: -1,
                    error: e && e.message ? e.message : e.toString()
                });
                // throw new HttpException('Forbidden', HttpStatus.FORBIDDEN);
            }
        }
    }

}

module file:

export class WxappModule {
    configure(consumer: MiddlewareConsumer) {
        consumer.apply(ResponseMiddleware).forRoutes(WxappController);
    }
}

controller file:

@Controller('weapp')
export class WxappController {

    @Get('')
    public async root(@Req() req, @Res() res): Promise<any> {
        res.state.data = {       //step into breakpoint 4
            msg: 'hello',
        };
    }
}

Expected behavior

To visit url "/weapp", the result of my expectation is step 1->2->3->4->5, but the actual result is 1->2->3->5->4 and even this request being hang up, no response return

Minimal reproduction of the problem with instructions

Asynchronous middleware does not work within controller.

What is the motivation / use case for changing the behavior?

I want to change the response's object by using middleware

Environment

Nest version: 5.1.0

 
For Tooling issues:
- Node version: 8.9.3  
- Platform: Win64 

Others:
webstorm breakpoint debug

[ryanswart]

Nest middleware is designed to be run before route handlers; use Interceptors to modify the response https://docs.nestjs.com/interceptors

[kamilmysliwiec]

@ryanswart +1

[yangjdb]

thx

[lock]

This thread has been automatically locked since there has not been any recent activity after it was closed. Please open a new issue for related bugs.