Payment orchestrator :
Architecture first 🧠
1️⃣ API hits & atomic DB writes (Ledger + Outbox)
2️⃣ Background pollers bridging to RabbitMQ
3️⃣ Workers handling state with Redis locks & fail-safes
System resilience starts on paper. 🚀 #Backend#SystemDesign#NodeJS#PostgreSQL
@moveToMoonlight Building a resilient payment orchestrator using Node.js & RabbitMQ, solving race conditions on wallet rows via Redis distributed locks, implementing custom dead-letter routing for infrastructure timeouts, and ensuring zero-downtime deployments with OS signaled graceful shutdowns
@rafalmmmmm Building a resilient payment orchestrator using Node.js & RabbitMQ, solving race conditions on wallet rows via Redis distributed locks, implementing custom dead-letter routing for infrastructure timeouts, and ensuring zero-downtime deployments with OS signaled graceful shutdowns
@LoopandPixels Well we shoulf ride the wave tbh, its just gonna make productive engineers 10-20x faster. The bat rises up and we need to know breath too while studying in deep.
Orchestrator :
🔐 Idempotency Keys kill duplicate requests.
⏳ TTLs & Delays prevent database overload.
🔄 Smart Routing handles retries, shift to backup queuesmoves bad data into a DLQ.
It’s all graceful degradation. 🚀 #BackendEngineering#DistributedSystems#NodeJS#RabbitMQ
You can recreate RabbitMQ’s ACK/NACK reliability in Redis using LMOVE :
Redis lists delete messages on pop. If your worker crashes, data is gone
1. Pop & move to processing queue
3. On success: LREM to ACK else back to main queue for NACK
#Backend#Redis#SystemDesign