Easy-auth

This npm package provides functionalities for user registration, OTP verification, user login, token verification, and user logout using Express.js and Mongoose for MongoDB integration.

Installation

You can install this package via npm:

npm install Easy-auth

Import

import this package to make your node auth easy

const { Register, verifyOtp, Login, tokenVerification, Logout } = require('easy-auth');

Usage

Setting Up Express Server First, import necessary modules and set up your Express server:

const express = require('express');
const mongoose = require('mongoose');
const cookieParser = require('cookie-parser');
const { Register, verifyOtp, Login, tokenVerification, Logout } = require('easy-auth');

const app = express();

app.use(cookieParser());
app.use(express.json());

// Connect to MongoDB
const dbtoken = 'mongodb://localhost:27017/testdb';
mongoose.connect(dbtoken).then(() => {
  console.log('MongoDB connected');
}).catch((err) => {
  console.error('MongoDB connection error:', err);
});

// Start the server
const PORT = process.env.PORT || 3000;
app.listen(PORT, () => {
  console.log(`Server is running on port ${PORT}`);
});

Registering a New User

Use the /register endpoint with a POST request to register a new user:

app.post('/register', (req, res) => {
  Register(req, res)
    .then((user) => {
      res.json({ message: 'User registered successfully', user });
    })
    .catch((err) => {
      console.error('Registration error:', err);
      res.status(500).json({ error: 'Registration failed' });
    });
});

Verifying OTP

Verify OTP (one-time password) for user authentication with a POST request to /verify-otp:

app.post('/verify-otp', (req, res) => {
  verifyOtp(req, res);
  res.json({ message: 'OTP verified' });
});

User Login

Authenticate a user by sending a POST request to /login:

app.post('/login', (req, res) => {
  Login(req, res)
    .then((user) => {
      res.json({ message: 'Login successful', user });
    })
    .catch((err) => {
      console.error('Login error:', err);
      res.status(401).json({ error: 'Login failed' });
    });
});

Protected Routes with Token Verification

Access protected routes by sending a GET request to /protected-route. This route requires token verification using the tokenVerification middleware:

app.get('/protected-route', tokenVerification, (req, res) => {
  // Access user data from decoded token in req.user
  res.json({ message: 'Protected route accessed successfully', user: req.user });
});

User Logout

Log out a user by sending a GET request to /logout:

app.get('/logout', Logout, (req, res) => {
  res.json({ message: 'User logged out successfully' });
});