View on GitHub

middy

πŸ›΅ The stylish Node.js middleware engine for AWS Lambda

Middy http-error-handler middleware

Middy logo

HTTP error handler middleware for the middy framework, the stylish Node.js middleware engine for AWS Lambda

npm version Known Vulnerabilities Standard Code Style Chat on Gitter

Automatically handles uncaught errors that contain the properties statusCode (number) and message (string) and creates a proper HTTP response for them (using the message and the status code provided by the error object). Additionally, support for the property expose is included with a default value of statusCode < 500. We recommend generating these HTTP errors with the npm module http-errors.

This middleware should be set as the last error handler unless you also want to register the http-reponse-serializer. If so, this middleware should come second-last and the http-response-serializer should come last.

Install

To install this middleware you can use NPM:

npm install --save @middy/http-error-handler

Options

Sample usage

import middy from '@middy/core'
import httpErrorHandler from '@middy/http-error-handler'

const handler = middy((event, context) => {
  throw new createError.UnprocessableEntity()
})

handler
  .use(httpErrorHandler())

// when Lambda runs the handler...
handler({}, {}, (_, response) => {
  t.deepEqual(response,{
    statusCode: 422,
    body: 'Unprocessable Entity'
  })
})

Middy documentation and examples

For more documentation and examples, refers to the main Middy monorepo on GitHub or Middy official website.

Contributing

Everyone is very welcome to contribute to this repository. Feel free to raise issues or to submit Pull Requests.

License

Licensed under MIT License. Copyright (c) 2017-2021 Luciano Mammino, will Farrell, and the Middy team.

FOSSA Status