@purinton/errors

Minimal Node.js process-level error handler utility for uncaught exceptions, unhandled rejections, and warnings. Works in both CommonJS and ESM environments.

Table of Contents

• Features
• Installation
• Usage
  • ESM Example
  • CommonJS Example
• API
• TypeScript
• Support
• License
• Links

Features

• Handles uncaught exceptions, unhandled rejections, and warnings
• Pluggable logger (defaults to @purinton/log)
• Easy to add/remove handlers for testability
• Works in both CommonJS and ESM modules

Installation

npm install @purinton/errors

Usage

ESM Example

import { registerHandlers } from '@purinton/errors';
registerHandlers();

// Or with options:
// registerHandlers({ processObj: process, log: customLogger });

// Simulate an uncaught exception
setTimeout(() => { throw new Error('Demo uncaught exception'); }, 1000);

CommonJS Example

const { registerHandlers } = require('@purinton/errors');
registerHandlers();

// Or with options:
// registerHandlers({ processObj: process, log: customLogger });

// Simulate an uncaught exception
setTimeout(() => { throw new Error('Demo uncaught exception'); }, 1000);

API

registerHandlers(options)

Registers process-level exception handlers. Returns an object with a removeHandlers function to detach all handlers (useful for testing).

• options (optional): An object with the following properties:
  • processObj (optional): The process object to attach handlers to (default: process)
  • log (optional): Logger for output (default: @purinton/log)
• Returns: { removeHandlers: () => void }

TypeScript

Type definitions are included:

export declare function registerHandlers(
  options?: {
    processObj?: NodeJS.Process,
    log?: typeof import('@purinton/log')
  }
): { removeHandlers: () => void };

Support

For help, questions, or to chat with the author and community, visit:

Purinton Dev on Discord

License

MIT © 2025 Russell Purinton

Links

• GitHub
• npm
• Discord