Exception Handler Library

A robust, production-ready exception handler for Node.js/TypeScript microservices.

Features

• Supports all common exception types (auth, validation, not found, etc.)
• Service and reason tagging for error context
• Consistent, plain-English error responses
• Ready for npm publishing and use in all services

Usage

import {
  AppException,
  handleException,
  ExceptionType,
} from "exception-handler-lib";

// Throw an exception
throw new AppException({
  type: "ValidationError",
  message: "Invalid input",
  service: "user-service",
  reason: "Missing required field",
});

// In your Express error handler
app.use((err, req, res, next) => {
  handleException(res, err);
});