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Comments (9)

serhiisol avatar serhiisol commented on May 25, 2024

well, you can define the very last middleware using plain express middleware, like so

  expressApp.use(
    (
      err: Error,
      req: express.Request,
      res: express.Response,
      next: express.NextFunction
    ) => {
      res.status(err.status || 500).json(error);
    }
  );
``

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kalu111 avatar kalu111 commented on May 25, 2024

I would like to use a decorator to achieve similar functionality :)

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serhiisol avatar serhiisol commented on May 25, 2024

So, I've implemented possible option for handling errors, due to added @decorators/di support in @decorators/express package, there's new possible option of handling errors:

import { ErrorMiddleware, ERROR_MIDDLEWARE } from '@decorators/express';

@Injectable()
class ServerErrorMiddleware implements ErrorMiddleware {
  public use(error: Error, request: Request, response: Response, next: NextFunction) {
    next();
  }
}

Container.provide([
  { provide: ERROR_MIDDLEWARE, useClass: ServerErrorMiddleware }
]);

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vasergen avatar vasergen commented on May 25, 2024

@serhiisol , what is Container in example above?

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serhiisol avatar serhiisol commented on May 25, 2024

@vasergen that's the container class from @decorators/di package

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vasergen avatar vasergen commented on May 25, 2024

@serhiisol , thanks

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serhiisol avatar serhiisol commented on May 25, 2024

No problem

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angelxmoreno avatar angelxmoreno commented on May 25, 2024

@serhiisol how do i wire this to my express app? I created:

import { ErrorMiddleware, ERROR_MIDDLEWARE } from '@decorators/express';
import { Container, Injectable } from '@decorators/di';
import { NextFunction, Request, Response } from 'express';

@Injectable()
class ServerErrorMiddleware implements ErrorMiddleware {
    public use(error: Error, request: Request, response: Response, next: NextFunction) {
        response.render('errorTemplate', { error });
    }
}

Container.provide([{ provide: ERROR_MIDDLEWARE, useClass: ServerErrorMiddleware }]);

my express server setup currently looks like this:

server.use(compression());
server.use(logger('combined'));
server.use(express.json());
server.use(express.urlencoded({ extended: true }));

applySession(server);
applyView(server);
applyAuth(server);
attachControllers(server, [PollsController, AuthController, IndexController]);

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serhiisol avatar serhiisol commented on May 25, 2024

@angelxmoreno looks good to me. What's the issue you're having?

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