This package makes catch async & custom error concepts in any app easier.

Basic app custom error

+ Type checks with enumerated error codes + String format type checks + Array type checks + Type guards (x is Type) + Type assertions (assert x is Type and return; otherwise, throw) + Customizable error messages (`ErrorMessageService.Map = /*Custom error

Making custom error classes

an package for new errors, custom error and handle errors

Create type-safe custom error classes with a specific reason + associated context.

Simple and understandable custom error handling.

HTTP/S fetch wrapper that adds the possibility to set a timeout after which a custom error is returned.

Produce custom error types

Create typed, structured error classes from simple definitions.

A Node.js Custom Error Library that print error stack without clutter.

Robust Authorization Header Auth Scheme for Hapi, with custom error reporting schema.

bootstrap an express application with custom error handling

Straightforward ES6 class you can extend to make proper custom errors

A library that streamlines creation of custom error classes with message registries.

Yet another try/catch for JSON#parse. This one returns your custom error token value in case of a SyntaxError (default: undefined), and passes all other errors to your custom error handler (default: re-throw).

middleware for handling exceptions inside of async express routes and passing them to your express or custom error handlers

A custom generic response and custom error handling module.

NestJS custom error

Simple way get custom error classes