Implementing Refresh Token Mechanism for Enhanced Authentication

[JavidSumra]

Issue #40

Description: In response to limitations encountered with JWT token expiration in our application's authentication system, this PR proposes the implementation of a refreshToken mechanism. This enhancement aims to bolster security, improve user experience, and optimize scalability.

Benefit:

• Enhanced Security: Introducing refresh tokens provides an additional layer of security, allowing seamless token refreshment without requiring users to reauthenticate frequently.
• Improved User Experience: Users will experience uninterrupted sessions as refresh tokens mitigate abrupt logouts caused by expired JWT tokens.
• Scalability: By reducing reauthentication requests, especially in high-traffic scenarios, implementing refresh tokens enhances the application's scalability.

Proposed Solution:

• RefreshToken Endpoint: Introduce a /refresh endpoint responsible for issuing new JWT tokens upon receiving a valid refresh token. This endpoint will handle token expiration, invalidation, and rotation securely.

Additional Considerations:

• Token Expiry: Define appropriate expiry times for refresh tokens to balance security and usability.
• Security Measures: Implement token revocation, rate limiting, and rotation to mitigate security risks effectively.
• Compatibility: Ensure compatibility with existing JWT authentication implementations and libraries for seamless integration.

Implementation Details:

• Backend Changes: Modify the authentication service and database schema to accommodate refreshToken functionality securely.
• API Endpoints: Define the /refresh endpoint for checking refresh tokens. Specify expected behavior, input/output formats, and security measures to be implemented.

Testing Plan:

• Comprehensive testing will be conducted to validate the functionality of the refreshToken mechanism, including scenarios like token expiration, invalidation, and rotation.
• Integration tests will ensure compatibility with existing JWT authentication implementations and libraries.

[JavidSumra]

Hey @sayan404 Sir Please Checkout PR.