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Rajiv Bose

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Auth platform engineer at a Kolkata digital identity company, building OAuth 2.0 servers for government e-services. Designed the token revocation system that invalidates sessions across 20 M devices in under 5 seconds.

authsecuritybackendapi

Articles by Rajiv Bose(1)

OAuth 2.0 Token Refresh Flows: Handling Expiration Gracefully in Offline-First Apps

This article explores best practices for implementing OAuth 2.0 token refresh flows within offline-first applications, addressing the challenges posed by token expiration and providing strategies for seamless user experiences. We delve into the intricacies of refresh token rotation, JWT versus opaque token management, and design considerations for robust token lifecycle management.

OAuth 2.0token refreshoffline-firstrefresh token rotationJWT introspection

22 July 2026

Rajiv Bose — ANN Tech — ANN Tech