Idempotency Is a Workflow, Not Just a Request Header
How to design retry-safe APIs with durable keys, transactional writes, leases, and an outbox—plus the failure cases a unique constraint cannot solve.
Read articleHello, I'm Apurba Ranjan Mohapatra.
Software Engineer III, Walmart Global Tech Bangalore, India
I build distributed software and applied AI for operational decisions — from seller catalog reviews and store compliance to logistics investigations. I write about the engineering choices behind these systems.
Or start with the writingHow to design retry-safe APIs with durable keys, transactional writes, leases, and an outbox—plus the failure cases a unique constraint cannot solve.
Read articleAsynchronous AI audit harness that auto-approves compliant seller listings and escalates edge cases.
Read the engineering case studyFull-stack compliance platform plus a multi-agent RAG assistant over SOP documents, serving 60,000+ store associates.
Read the engineering case studyEnd-to-end logistics investigation platform for analyzing anomalous delivery patterns.
Read the engineering case study