Discussion on "We Replaced REST with Kafka and Cut API Failures by 90% — A Production Cutover (.NET 9)"

Randhir Jassal · 2026-06-14T14:06:56.859Z

TL;DR — We swapped Mattrx's inter-service REST calls for Kafka topics (multi-tenant marketing analytics SaaS, .NET 9 / ASP.NET Core, Azure SQL, ~3,200 req/sec peak). Over 8 weeks: end-to-end ingestion

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We Replaced REST with Kafka and Cut API Failures by 90% — A Production Cutover (.NET 9)

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