Restify — Error Handling with Restify-Errors

Restify — Error Handling with Restify-Errors

Restify — Error Handling with Restify-Errors. The restify-errors module exposes a suite of error constrictors for many common HTTP requests and REST related errors. We can also pass in Restify errors as an argument of res. We’ll look at how to format error messages with Restify.

Restify is a simple Node back end framework.

In this article, we’ll look at how to format error messages with Restify.

Formatting Errors

We can format errors with the error handler.

For example, we can write:

var restify = require('restify');
var errors = require('restify-errors');

var server = restify.createServer();
server.get('/hello/:foo', function(req, res, next) {
  var err = new errors.InternalServerError('not found');
  return next(err);
server.on('InternalServer', function (req, res, err, cb) {
  err.toString = function() {
    return 'an internal server error occurred!';
  err.toJSON = function() {
    return {
      message: 'an internal server error occurred!',
      code: 'error'
  return cb();
server.on('restifyError', function (req, res, err, cb) {
  return cb();

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