How to change the default error output in restify 7.x?

[qburst-ranjith]

I changed the default error output in restify 4.x using the below code

`var restify = require('restify');
var util = require('util');

function ValidationError(message, errors) {
restify.RestError.call(this, {
restCode: 'ValidationError',
statusCode: 400,
message: message,
constructorOpt: ValidationError
});
this.name = 'ValidationError';
this.body.errors = errors; //<---
}

util.inherits(ValidationError, restify.RestError);`

And I got the desired result. Now am in a process of migrating my project to restify 7.x. So I couldn't use the restify.RestError, I have tried 'restify-errors-options' package's subclassing property but it doesn't work for me. I have tried the below code
restifyErrors.makeConstructor('ValidationError', { restCode: 'ValidationError', statusCode: 400, message: message }); var myErr = new errors.ValidationError( );

And I ended up with the below error

var myErr = new errors.ValidationError(); ^

TypeError: errors.ValidationError is not a constructor

So can anyone suggest a solution for this problem?

[dvdkon]

It seems that the docs are wrong, makeConstructor actually returns the new constructor instead of storing it in the module, so the proper way to use it would be

let ValidationError = restifyErrors.makeConstructor('ValidationError', {
    restCode: 'ValidationError',
    statusCode: 400,
    message: message
});
var myErr = new errors.ValidationError();

[SensitiveMix]

Restify-errors 7.x makeConstructor doesn't work, I use it normally in 5.x. You can install Restify 7.2.1.

[SensitiveMix]

@ltvolks @micahr @sean3z @ranjithrajendran

[sephiroth32]

in older versions the plugin add the constructor, in this version you need add manually

errs.testerror = errs.makeConstructor('testerror', {
    statusCode: 200,
    message: 'my default message'
});

[DonutEspresso]

Hi all - what version of restify-errors are you using? This should work on latest 7.0.0 release:

const errs = require('restify-errors');
const MyErr = errs.makeConstructor('MyError');
throw new MyErr('boom');

/Users/aliu/Sandbox/test/errors.js:3
throw new MyErr('boom');
^
MyError: boom
    at Object.<anonymous> (/Users/aliu/Sandbox/test/errors.js:3:7)
    at Module._compile (internal/modules/cjs/loader.js:701:30)
    at Object.Module._extensions..js (internal/modules/cjs/loader.js:712:10)
    at Module.load (internal/modules/cjs/loader.js:600:32)
    at tryModuleLoad (internal/modules/cjs/loader.js:539:12)
    at Function.Module._load (internal/modules/cjs/loader.js:531:3)
    at Function.Module.runMain (internal/modules/cjs/loader.js:754:12)
    at startup (internal/bootstrap/node.js:283:19)
    at bootstrapNodeJSCore (internal/bootstrap/node.js:622:3)

Regarding the storing of classes on the exports of the module, that feature was removed in 6.x. Some additional context can be found here:
https://github.com/restify/errors#custom-constructors