tune-up-library

A middleware for error handling in Express applications.

Installation

Install the package using npm:

npm install tune-up-library

Features

• Custom error classes for common HTTP errors
• Express middleware for centralized error handling
• TypeScript support

Usage

Importing

import { 
  errorHandler, 
  BadRequestError, 
  NotFoundError, 
  UnauthorizedError 
} from 'tune-up-library';

Error Handler Middleware

Add the error handler middleware to your Express application:

import express from 'express';
import { errorHandler } from 'tune-up-library';

const app = express();

// Your routes and other middleware

app.use(errorHandler);

Using Custom Error Classes

You can use the custom error classes in your route handlers or other middleware:

import { BadRequestError, NotFoundError, UnauthorizedError } from 'tune-up-library';

app.get('/example', (req, res, next) => {
  try {
    // Your logic here
    if (someCondition) {
      throw new BadRequestError('Invalid input');
    }
    if (anotherCondition) {
      throw new NotFoundError('Resource not found');
    }
    if (yetAnotherCondition) {
      throw new UnauthorizedError('Unauthorized access');
    }
    // ...
  } catch (error) {
    next(error);
  }
});

API Reference

errorHandler(err, req, res, next)

Express middleware that handles errors and sends appropriate responses.

BadRequestError

Custom error class for 400 Bad Request errors.

NotFoundError

Custom error class for 404 Not Found errors.

UnauthorizedError

Custom error class for 401 Unauthorized errors.

License

ISC

Author

ali

Version

1.1.25

Dependencies

• express: ^4.19.2

Contributing

Contributions are welcome! Please feel free to submit a Pull Request.

Issues

If you find a bug or have a suggestion, please file an issue on the GitHub repository.