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Microservices 10 Oct 2025

Correlation by Natural Key

Availability's ResourceReserved event carries no order id, no correlation id, no saga id - just a resource and a date. Orders finds the right order anyway, by treating (vehicleId, deliveryDate) as the correlation key, and the expropriation flow shows exactly when that key stops being unique.

Microservices 09 Oct 2025

A Checkout With No Conductor

Pacco's flagship flow reconstructed from source - a vehicle is assigned, a reservation lands, an order approves itself, and when a VIP bumps the booking the cancellation ripples through three services with no process manager in sight.

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Agentic AI & Cloud Engineer · multi-agent systems, RAG and MCP on AWS

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