-
-
Save wenindoubt/f940ece29a43fa5c28da67054fefc2b0 to your computer and use it in GitHub Desktop.
This file contains hidden or bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
| import middy from '@middy/core'; | |
| import { APIGatewayProxyEvent, APIGatewayProxyResult } from 'aws-lambda'; | |
| import { formatJSONResponse } from './apiGateway'; | |
| import { AppError } from './appError'; | |
| import MiddlewareFunction = middy.MiddlewareFunction; | |
| export const apiGatewayResponseMiddleware = (options: { enableErrorLogger?: boolean } = {}) => { | |
| const after: MiddlewareFunction<APIGatewayProxyEvent, any> = async (request) => { | |
| if (!request.event?.httpMethod || request.response === undefined || request.response === null) { | |
| return; | |
| } | |
| const existingKeys = Object.keys(request.response); | |
| const isHttpResponse = existingKeys.includes('statusCode') | |
| && existingKeys.includes('headers') | |
| && existingKeys.includes('body'); | |
| if (isHttpResponse) { | |
| return; | |
| } | |
| request.response = formatJSONResponse(request.response); | |
| } | |
| const onError: MiddlewareFunction<APIGatewayProxyEvent, APIGatewayProxyResult> = async (request) => { | |
| const { error } = request; | |
| let statusCode = 500; | |
| if (error instanceof AppError) { | |
| statusCode = error.statusCode; | |
| } | |
| if (options.enableErrorLogger) { | |
| console.error(error); | |
| } | |
| request.response = formatJSONResponse({ message: error.message }, statusCode); | |
| } | |
| return { | |
| after, | |
| onError, | |
| }; | |
| } |
Sign up for free
to join this conversation on GitHub.
Already have an account?
Sign in to comment