📬 Part 1 — Building a Queue-Based Microservice with Azure Service Bus and .NET
Modern microservices need reliable, decoupled communication . Instead of services directly calling each other (leading to tight coupling and cascading failures), we can use Azure Service Bus as a message broker. In this first part of the series, we’ll build a simple system: Order API (producer) → ASP.NET Core Web API that accepts orders and enqueues them into Service Bus. Order Worker (consumer) → .NET Worker Service that listens to the queue, processes messages, and handles retries. By the end, you’ll have a working end-to-end demo with queues, error handling, and DLQ (Dead Letter Queue). 🏗️ Architecture Overview Client → HTTP POST /api/orders → Order API → Azure Service Bus Queue → Order Worker → Processing OrderApi : Places orders into orders-queue . OrderWorker : Reads messages from the queue and processes them. DLQ : Stores failed messages after max retry attempts. ⚙️ Step 1 — Prerequisites .NET 7+ SDK Azure subscription with Service Bus (Optional) Docker,...