Request/reply (RPC) RabbitMQ वर मेसेजिंगचा वापर करून synchronous-style request-response communication सक्षम करते — क्लायंट एक request पाठवतो आणि एक reply queue द्वारे response प्राप्त करतो, correlation ID वापरून responses ला requests शी जोडते. हा service-to-service calls साठी एक उपयोगी pattern आहे.
RabbitMQ मध्ये RPC कसे काम करते
RPC pattern over messaging:
1. CLIENT sends a REQUEST message, including:
→ a REPLY-TO queue (where the response should go)
→ a CORRELATION ID (unique ID to match the response to this request)
2. SERVER (consumer) processes the request and sends a RESPONSE to the reply-to queue,
including the same CORRELATION ID
3. CLIENT receives the response from its reply queue, matches it by CORRELATION ID →
pairs the response with the original request
→ request-response over async messaging
