middleware-plain-error-handler

Plain error reporting for Connect and Express with as little magic as possible.

Why?

Unlike the built-in error handler, this package:

• Does not reveal source code, stack traces, and line numbers.
• Reliably works the same way whether app is in "production" or "development" mode.
• Is careful enough to avoid warnings when using HTTP/2.

Error Support

Accepts either HttpError instances, generic Error instances, or any object implementing a {status, message} interface.

• status is a number >=400 and <600, and
• message is a string to show in the HTTP response body.

Usage

import {errorHandler} from 'middleware-plain-error-handler'
import createError from 'http-errors'
import express from 'express'

const app = express()

app.get('/ddos', (req, res, next) => {
  next(new Error())
})

app.get('/whoami', (req, res, next) => {
  next(createError(418))
})

// Always add the error handling middleware last!
app.use(errorHandler())

// Request /ddos
// -> 500 - Internal Server Error

// Request /whoami
// -> 418 - I'm a teapot

See also

• @http2/server An HTTP/2 server using this package.
• http-errors Utility to throw valid HTTP errors.