Maintaining the same state on both sides of network communication can be challenging due to lost messages, answers, and backend exceptions. Retrying client requests may cause adverse consequences or even result in multiple actions being processed on the server. Idempotent operations solve these issues by allowing operations to be applied multiple times without changing the result. Each idempotent request should have a unique trx - operation id. Idempotency is especially important in client-server communication and other cases where it is necessary to ensure that the other party has received and processed messages. With idempotent operations, you can achieve reliable communication and prevent unintended actions.
