How do I implement token refresh stampede fix in React?

Copy the getAccessToken function. Wire it to your Axios interceptor or fetch wrapper. Call on 401s, retry originals after.

What causes auth token refresh race conditions?

Concurrent API calls when token expires. All hit refresh endpoint simultaneously. Server rotates refresh token mid-stampede — some fail.

Do I need libraries for JWT expiry parsing?

Nope. atob + JSON.parse the payload. Subtract buffer. Fallbacks handle edge cases.

🛠️ Developer Tools

Token Refresh Stampedes Are Wrecking Apps Everywhere — 40 Lines to Stop the Madness

Everyone thought basic auth interceptors had it covered. Wrong. This sneaky 'token refresh stampede' is nuking apps — but a clever promise-sharing fix changes everything.

Open Source Beat Apr 03, 2026 4 min read 15 views

TypeScript code snippet implementing shared promise for token refresh stampede fix

⚡ Key Takeaways

Token refresh stampedes cause duplicate requests, 401 loops, and random logouts in most apps. 𝕏
Shared promise reference ensures one refresh serves all concurrent callers — no flags or queues needed. 𝕏
Parse JWT expiry manually: no deps, 60s early buffer, pure TypeScript elegance. 𝕏

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#JWT auth #TypeScript auth #race condition fix #token refresh stampede

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Originally reported by Dev.to

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