Simplify JWT Authentication in Express.js with tokenease
Tags: webdev, npm, jtw, authjs
Published: 2024-03-17 15:09:51

# Express JWT Library tokenease
===================

This library provides easy-to-use functions for handling JWT (JSON Web Token) authentication in Express.js applications. It simplifies token authentication, generation, refreshing, and revocation, making it more convenient for developers to implement JWT-based authentication in their projects.

Installation
------------

To use this library, you need to install it via npm:

   ` npm install tokenease`

Usage
-----

Below are the functions provided by this library:

## authenticateToken(secretKey)

Middleware function to authenticate JWT tokens.

*   **secretKey:** The secret key used to verify JWT tokens.

         const { authenticateToken } = require('tokenease');
    
    app.use(authenticateToken('your_secret_key'));

### generateToken(payload, secretKey, expiresIn = '1h')

Function to generate a JWT token.

*   **payload:** Data to be included in the token.
*   **secretKey:** The secret key used to sign the token.
*   **expiresIn:** Expiry duration for the token (default is 1 hour).

         const { generateToken } = require('tokenease');
    
         const token = generateToken({ userId: '123456' }, 'your_secret_key');

### refreshAccessToken(refreshToken, secretKey, extractUser)

Function to generate a new access token using a refresh token.

*   **refreshToken:** The refresh token used to generate a new access token.
*   **secretKey:** The secret key used to verify tokens.
*   **extractUser:** Function to extract user data from the refresh token.

         const { refreshAccessToken } = require('tokenease');
    
        refreshAccessToken(refreshToken, 'your_secret_key', (decoded) => decoded.user);

### blacklistToken(tokenIdentifier, schemaClass)

Function to revoke or blacklist a token.

*   **tokenIdentifier:** Identifier of the token to be blacklisted.
*   **schemaClass:** Schema class for interacting with the database.

         const { blacklistToken } = require('tokenease');
    
         blacklistToken(tokenIdentifier, YourSchemaClass)
         .then((success) => {
        console.log('Token blacklisted:', success);
        })
        .catch((error) => {
        console.error('Error blacklisting token:', error);
        });

### revokeUserTokens(userId, schemaClass)

Function to revoke all tokens associated with a user.

*   **userId:** ID of the user whose tokens need to be revoked.
*   **schemaClass:** Schema class for interacting with the database.

         const { revokeUserTokens } = require('tokenease');
    
        revokeUserTokens(userId, YourSchemaClass)
        .then((success) => {
         console.log('Tokens revoked:', success);
        })
        .catch((error) => {
        console.error('Error revoking tokens:', error);
        });

### revokeTokenByIdentifier(tokenIdentifier, schemaClass)

Function to revoke a specific token by its identifier.

*   **tokenIdentifier:** Identifier of the token to be revoked.
*   **schemaClass:** Schema class for interacting with the database.

         const { revokeTokenByIdentifier } = require('tokenease');
         revokeTokenByIdentifier(tokenIdentifier, YourSchemaClass).then((success) => {
         console.log('Token revoked:', success);
        })
        .catch((error) => {
        console.error('Error revoking token:', error);
        });

### handleTokenExpiry(accessToken, refreshToken, secretKey, extractUser)

Function to handle token expiry by refreshing access tokens using refresh tokens.

*   **accessToken:** The access token to be verified.
*   **refreshToken:** The refresh token used to refresh the access token.
*   **secretKey:** The secret key used to verify tokens.
*   **extractUser:** Function to extract user data from the refresh token.

         const { handleTokenExpiry } = require('tokenease');
    
        handleTokenExpiry(accessToken, refreshToken, 'your_secret_key', (decoded) => decoded.user)
        .then((newAccessToken) => {
        console.log('New access token:', newAccessToken);
        }).catch((error) => {
        console.error('Error handling token expiry:', error);
        });

This library is licensed under the MIT License.``
note:- you can contribute in the library here is github repo link
https://github.com/AlizaibWEBdev/tokenease/