Idempotence in Distributed Systems: Ensuring Consistency in APIs and Messaging

This article addresses idempotence in distributed systems, highlighting its importance in APIs and messaging. Idempotence ensures that operations can be repeated without changing the result, avoiding inconsistencies, especially in failure situations. The text presents basic concepts, design principles in REST APIs, and practical examples in C# to implement idempotent methods, both in APIs and in message consumers using RabbitMQ.