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7/5/2026
Offline-first Laravel check-in API survives bad venue Wi-Fi

Offline-first Laravel check-in API survives bad venue Wi-Fi

Original: Offline-First Check-In: A Laravel API That Survives Venue Wi-Fi

Short summary

Offline-first event check-ins let devices queue scans locally and sync later. Use client-generated UUIDs with server-side unique indexes to deduplicate safely; treat duplicates as success, not error. Server acts as reconciler, not gatekeeper.

  • •Device owns check-in logic, server handles state convergence
  • •Client-generated UUIDs + unique index make retry-safe batch endpoints
  • •Monotonic server cursors enable safe delta pulls across devices

Generated with AI, which can make mistakes.

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