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This article explains the HTTP QUERY method as a safe, idempotent request type that carries payloads like POST but enables caching and automatic retries, detailing its semantics, caching behavior, Accept-Query header, and providing practical code examples.
This article explains the HTTP QUERY method—a safe, idempotent request type that carries query payloads in the body, contrasts it with GET and POST, details caching behavior, the Accept-Query header, and provides practical examples of direct and indirect responses.
This article explains the concept of idempotent HTTP requests, defines idempotency, lists which HTTP methods are idempotent or not, and clarifies why methods like GET, HEAD, PUT, DELETE are safe to retry while POST, PATCH, and CONNECT are not.
This article explains RocketMQ consumer fundamentals, covering concurrent and ordered consumption modes, how to achieve idempotent processing with Redis locks, the load‑balancing strategy implemented by RebalanceImpl, and the complete pull‑process‑consume workflow including code examples.