express#Response TypeScript Examples

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();
}

/**
 * Copies the headers from a source response into a target response,
 * overwriting existing values.
 */
export function copyHeaders(
  sourceResponse: any,
  targetResponse: Response,
): void {
  for (const key in sourceResponse.headers) {
    if (!Object.prototype.hasOwnProperty.call(sourceResponse.headers, key)) {
      continue;
    }
    targetResponse.setHeader(key, sourceResponse.headers[key]);
  }
}

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);
}

@UseGuards(FtAuthGuard)
  @Get('login/callback')
  async callback(@Req() req: any, @Res({ passthrough: true }) res: Response) {
    if (req.user) {
      const token = await this.userService.login(req.user);
      res.cookie('w_auth', token);
      res.status(302).redirect('/submit');
    }
  }

private handleError(err: Error, res: Response, isFatal: boolean = false, errorCode: number = 500): void {
        if (err instanceof NNIError && err.name === NNIErrorNames.NOT_FOUND) {
            res.status(404);
        } else {
            res.status(errorCode);
        }
        res.send({
            error: err.message
        });

        // If it's a fatal error, exit process
        if (isFatal) {
            this.log.fatal(err);
            process.exit(1);
        } else {
            this.log.error(err);
        }
    }

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 });
}

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);
  }

@httpGet('/')
    public async log(@request() req: Request, @response() res: Response, @next() nex: NextFunction)
    {
        return new Promise<string>((resolve, reject) =>
        {
            const use_case = new GetLogViewUseCase();
            const data = use_case.handle();

            this.responder.render(data, 'log', res, resolve, reject);
        });
    }

/**
 * Copies the headers from a source response into a target response,
 * overwriting existing values.
 */
export declare function copyHeaders(sourceResponse: any, targetResponse: Response): void;

public async craete(req: Request, res: Response): Promise<Response> {
    const user_id = req.user.id;
    const { provider_id, date } = req.body;

    const createAppointment = container.resolve(CreateAppointmentService);

    const appointment = await createAppointment.execute({
      provider_id,
      date,
      user_id,
    });

    return res.json(appointment);
  }

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.error(err);

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