agnostic-http-error-handler

Node.js framework agnostic HTTP error handler.

Usage

Express.js

const { express: errMiddleware } = require('agnostic-http-error-handler')()

const service = require('express')()
service.get('/throw', (req, res) => {
  throw new Error('Upps!')
})

service.use(errMiddleware)

service.listen(3000)

Restana

const { restana: errorHandler } = require('agnostic-http-error-handler')()
const service = require('restana')({
  errorHandler
})

service.get('/throw', (req, res) => {
  throw new Error('Upps!')
})

service.start()

Native

const { native: errorHandler } = require('agnostic-http-error-handler')()
...
server.on('request', (req, res) => {
  try {
    // request handler logic...
  } catch (err) {
    errorHandler(err, req, res)
  }
})

Pre-Error-Handler callback

In case you would like to extend the error processing logic of your application, you can use the preErrorHandler configuration callback:

const logger = require('...')
const { native: errorHandler } = require('agnostic-http-error-handler')((err, responsePayload, req, res) => {
  logger.error(`Unexpected error while processing "${req.method} ${req.url}" request`, err)
})

...
server.on('request', (req, res) => {
  try {
    // request handler logic...
  } catch (err) {
    errorHandler(err, req, res)
  }
})

NOTE: In case the preErrorHandler invocation response can be coerce as a TRUE value, sending the responsePayload to the client is aborted.

Sponsors

• Kindly sponsored by ShareNow, a company that promotes innovation!