express#Response TypeScript Examples

export default function ensureAuthenticated(
  req: Request,
  res: Response,
  next: NextFunction,
): void {
  const authHeader = req.headers.authorization;

  if (!authHeader) {
    throw new AppError('JWT token is missing', 401);
  }

  const [, token] = authHeader.split(' ');

  try {
    const decoded = verify(token, authConfig.jwt.secret);

    const { sub } = decoded as ITokenPayload;

    req.user = {
      id: sub,
    };

    return next();
  } catch {
    throw new AppError('Invalid JWT token', 401);
  }
}

function resolver(req: Request, res: Response, next: NextFunction): void {
  const proxy = createProxyMiddleware({
    target: SPASHIP_ROUTER_HOST,
    secure: useSecureSSL,
    changeOrigin: true,
    toProxy: true,
    ignorePath: false,
    headers: {
      'X-OP-Authenticated': req.oidc.isAuthenticated() ? 'true' : 'false',
      ...(req.oidc.isAuthenticated() && {
        'X-OP-Auth-Token': req.oidc.accessToken?.access_token,
      }),
    },
    logProvider: logger.info,
  });

  proxy(req, res, next);
}

requestLogger = (
  req: Request,
  _: Response,
  next: NextFunction,
) => {
  if (ENV.ENABLE_LOGGING) {
    const { body } = req;
    const { operationName, variables } = body;

    // Don't log introspection query (clutter):
    if (Boolean(operationName) && operationName !== "IntrospectionQuery") {
      console.log(chalk.blue("Request Received:"));
      console.log(
        `- Query: ${operationName}\n- Variables: ${JSON.stringify(
          variables,
        )}\n`,
      );
    }
  }

  return next();
}

/**
 * Sets a custom openapi-cop validation header ('openapi-cop-validation-result')
 * to the validation results as JSON.
 */
export function setSourceRequestHeader(
  res: Response,
  oasRequest: OasRequest,
): void {
  res.setHeader('openapi-cop-source-request', JSON.stringify(oasRequest));
}

@httpGet('/:orderId', TYPES.FetchOrderMiddleware)
  public async show(
    {order, user}: Request & {order: Order; user: User},
    re: Response,
  ) {
    if (order.user.id !== user.id) {
      return response.sendStatus(403);
    }
    return ordersSerializer.serialize(order);
  }

Perform = async (): Promise<DoRequestResult> => {
        logger.debug("DoRequest with request options:");
        logger.debug(this.parameters.requestOptions)
        const p = new Promise<DoRequestResult>(async (resolve,reject) => {
            try {
                let requestOptions = TransformMtlsOptions(this.parameters.requestOptions)
                let response = await axios.request(requestOptions);
                resolve({error:undefined, response: response,body:response.data})
            } catch (e) {
                resolve({error:e, response: e?.response,body:e?.response?.data})
            }
        });

        return await p;

    }

@HttpCode(200)
  @Get("/:postId/comments/:id/replies")
  @OpenAPI({
    summary: "Post 댓글 답글 조회",
    responses: {
      "400": {
        description: "Bad request",
      },
    },
    statusCode: "200",
  })
  public async getReply(
    @Param("postId") postId: string,
    @Param("id") commentId: string,
    @Res() res: Response,
  ) {
    const comments = await this.postCommentService.getCommentReplies(
      postId,
      commentId,
    );

    if (comments) {
      return comments;
    } else {
      return res.status(400).send({ message: "잘못된 요청입니다." });
    }
  }

wrapMiddleware = middlewareFn => {
	// it's an error middleware
	if (middlewareFn.length === 4) {
		return (err: Error, req: DaVinciRequest, res: Response, next: NextFunction) => {
			if (req.requestHandled) return next();

			return middlewareFn(err, req, res, next);
		};
	}
	return (req: DaVinciRequest, res: Response, next: NextFunction) => {
		if (req.requestHandled) return next();

		return middlewareFn(req, res, next);
	};
}

server.on('upgrade', (req: Request, socket: Socket, head: Buffer) => {
  sessionParser(req, {} as Response, () => {
    const parsedURL = parseURL(req.url);
    const path = parsedURL.path;
    const reqOrigin = req.headers['origin'];

    if (reqOrigin !== origin) {
      abortHandshake(socket, 403);
      return;
    }

    if (path === '/admin/ws') {
      adminUpgrade(req, socket, head);
      return;
    }
    if (path === '/ws') {
      userUpgrade(req, socket, head);
      return;
    }
    if (path === '/big-screen/ws') {
      bigScreenUpgrade(req, socket, head);
      return;
    }

    abortHandshake(socket, 404);
  });
});

// Global Error handler
app.use(
  (
    err: ErrorRequestHandler,
    req: Request,
    res: Response,
    next: NextFunction
  ) => {
    // Set up default error
    const defaultError = {
      log: 'Error caught in global error handler',
      status: 500,
      msg: {
        err: err,
      },
    };

    // Update default error message with provided error if there is one
    const output = Object.assign(defaultError, err);
    res.send(output);
  }
);

tutorialRouter.post('/:tutorialId/start', [
  PrivateMiddleware,
  async function startTutorial(req: Request, res: Response) {
    const { tutorialId } = req.params;
    const { user } = req.body;

    if (user.tutorials.includes(tutorialId)) {
      new ServerError(422, `Ai început deja tutorialul cu ID=${tutorialId}`).send(res);
      return;
    }

    try {
      const tutorial = await Tutorial.findOne({ tutorialId });
      if (tutorial === null) {
        new ServerError(404, `Nu există nici un tutorial cu ID=${tutorialId}`).send(res);
        return;
      }

      await UserModel.update(user._id, { tutorials: [...user.tutorials, tutorialId] });
    } catch (err) {
      new ServerError(
        err.code || 500,
        err.message || `Error tying to start tutorial with ID=${tutorialId}`,
      ).send(res);
    }

    res.status(200).send();
  }
])

//

  public static endpoint() {
    return async function (_req: Request, res: Response) {
      res
        .status(200)
        .header({ 'Content-Type': 'text/plain' })
        .send(await Metrics.register.metrics())
    }
  }

cancelDelayed = async (req: Request, res: Response) => {

    const {id} = req.query as any;
    const {name: userName} = req.user as Express.User;

    if(req.manager?.resources === undefined) {
        req.manager?.logger.error('Subreddit does not have delayed items!', {user: userName});
        return res.status(400).send();
    }

    const delayedItem = req.manager.resources.delayedItems.find(x => x.id === id);
    if(delayedItem === undefined) {
        req.manager?.logger.error(`No delayed items exists with the id ${id}`, {user: userName});
        return res.status(400).send();
    }

    req.manager.resources.delayedItems = req.manager.resources.delayedItems.filter(x => x.id !== id);
    req.manager?.logger.info(`Remove Delayed Item '${delayedItem.id}'`, {user: userName});
    return res.send('OK');
}

// Errors
app.use(function (err: any, req: Request, res: Response, next: NextFunction) {
    if (err) {
        let msg = 'Invalid request: ' + err;
        msg = msg.replace("\n", "").replace("\r", "")
        log.error(msg)
        res.send({"error": msg})
    } else {
        next()
    }
})

/**
 * Returns an internal server error response with 500 status code.
 * @param response The http-response to be modified.
 * @param error The error or error-message to be sent within the response' body.
 */
export function InternalServerError(response: Response, error: string | Error): Response {
  const body: AppHttpResponse = {
    errors: [
      {
        code: AppErrorCode.InternalServerError,
        title: 'Internal server error',
        detail: typeof error === 'string' ? error : error.message
      }
    ]
  };
  return response.status(500).send(body);
}

app.use((err: Error, request: Request, response: Response, _: NextFunction) => {
  if (err instanceof AppError) {
    return response.status(err.statusCode).json({
      status: 'error',
      message: err.message,
    });
  }

  console.log(err);

  return response.status(500).json({
    status: 'error',
    message: 'Internal server error',
  });
});

app.use((err: Error, req: Request, res: Response, _: NextFunction) => {
  if (err instanceof AppError) {
    return res.status(err.statusCode).json({
      status: 'error',
      message: err.message,
    });
  }

  // eslint-disable-next-line
  console.error(err);

  return res.status(500).json({
    status: 'error',
    message: 'Internal server error',
  });
});

STRICTLY_NON_COMPLIANT_SERVERS: {
  [dir: string]: NonCompliantServerConfigMap;
} = {
  v3: {
    '2-path.yaml': [
      {
        request: {
          method: 'POST',
          url: '/echo',
          data: JSON.stringify({ input: 'ECHO!' }),
        },
        runServer: responderTo(
          'post',
          '/echo',
          (_req: Request, res: Response) => {
            res
              .status(200)
              .json({ output: 'The cake is a lie', forrest: 'Gump' });
          },
        ),
        expectedError: { keyword: 'additionalProperties' },
      },
    ],
  },
}

export default function resolver(
  req: Request,
  res: Response,
  next: NextFunction
): void {
  const { uid, role, rhatUUID } = res.locals.user;

  /* Adding additional roles */
  role.push('user:' + uid, 'user:' + rhatUUID, 'op-users');

  const token = createHmac('sha1', COUCHDB_SECRET as string)
    .update(uid) // lgtm[js/weak-cryptographic-algorithm]
    .digest('hex');

  const proxy = createProxyMiddleware({
    target: COUCHDB_HOST,
    secure: useSecureSSL,
    changeOrigin: true,
    headers: {
      'X-Auth-CouchDB-UserName': uid,
      'X-Auth-CouchDB-Roles': role.join(','),
      'X-Auth-CouchDB-Token': token,
    },
    pathRewrite: {
      ['^/api/couchdb']: '',
    },
  });
  proxy(req, res, next);
}

/**
 * Sets a custom openapi-cop validation header ('openapi-cop-validation-result')
 * to the validation results as JSON.
 */
export declare function setValidationHeader(res: Response, validationResults: ValidationResults): void;

@httpPut('/change-user-password/:id', AuthorizeMiddleware(Permissions.USERS_CHANGE_USER_PASSWORD))
    public async changeUserPassword(@request() req: Request, @response() res: Response): Promise<void>
    {
        const _request = new ChangeUserPasswordRequest(req.body, req.params.id);

        const user: IUserDomain = await this.controller.changeUserPassword(_request);

        void await this.responder.send(user, req, res, StatusCode.HTTP_CREATED, new DefaultMessageTransformer(ResponseMessageEnum.UPDATED));
    }

async index(request: Request, response: Response) {
    const items = await knex('items').select('*');

    const serializedItems = items.map(item => {
      return {
        id: item.id,
        title: item.title,
        image_url: `http://192.168.0.156:3333/uploads/${item.image}`,
      };
    });

    return response.json(serializedItems);
  }

private getLatestMetricData(router: Router): void {
        router.get('/metric-data-latest/', async (req: Request, res: Response) => {
            this.nniManager.getLatestMetricData().then((metricsData: MetricDataRecord[]) => {
                res.send(metricsData);
            }).catch((err: Error) => {
                this.handleError(err, res);
            });
        });
    }

export function askExpressMiddleware(
  environment: AskEnvironment,
  config: AskExpressMiddlewareConfig = {
    callNext: true,
    passError: false,
  }
) {
  return async function (
    request: Request,
    response: Response,
    next: NextFunction
  ) {
    try {
      const parsedCode = getParsedCode(request.body);
      const queryResponse = await runUntyped(environment, parsedCode);
      response.json(queryResponse);

      if (config.callNext) {
        return next();
      }
    } catch (err) {
      config.passError && next(err);
      return;
    }
    return;
  };
}

function errorMiddleware(
  error: HttpException,
  request: Request,
  response: Response,
  next: NextFunction
): void {
  const status: number = error.status || 500;
  const message: string = error.message || 'Something went wrong';
  response.status(status).send({
    status,
    message
  });
  next({ err: message });
}

public render(data: any, view: any, response: Response, resolve: any, reject: any)
    {
        response.render('log', { data }, (err: any, compiled: any) =>
        {
            if (err)
            {
                // eslint-disable-next-line @typescript-eslint/no-unsafe-call
                reject('500 when rendering the template');
            }
            // eslint-disable-next-line @typescript-eslint/no-unsafe-call
            resolve(compiled);
        });
    }