Handling Idempotency in Distributed Systems

Idempotency in distributed systems ensures that a piece of code will have the same effect regardless of how many times it runs. To handle idempotency, developers can attach an ID to events on the producer side to prevent duplicates or use unique keys on the consumer side to ensure functions run only once per key. This approach offers flexibility in managing resources and avoiding code duplication. By considering idempotency at each step of code execution and providing tools like multi-tenant keys, developers can design systems to handle multiple events and messages effectively. While designing SDKs for developer tools, flexibility in handling idempotency and allowing for custom key compositions is crucial for adaptability in different use cases.