Dev Tools · 3h ago
Recover Missed LINE MINI App Purchase Webhooks with 7-Day Reconciliation
LINE MINI App purchases require a purchaseComplete webhook to confirm payment, but outages or deployment issues can cause missed events. Developers can use LINE's event history API to recover webhooks from the past seven days, with careful pagination and idempotency. The article details storing reservation data and querying a fixed recovery window to avoid granting items twice.
Meridian48 take
This is a practical guide for LINE developers, but the core lesson—building idempotent webhook recovery—applies broadly to any payment system relying on async callbacks.
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