We've got a technical query which I feel you experts can easily help us with based on similar experiences...
Consumer: REST service invocation to ESB
ESB: Receive the RESTful service request, wait for backend to put the response into the queue, pick the response, correlate to the request and send back the response to the consumer
Backend system: Takes the request from ESB, does processing asynchronously, send the response to a Queue
Customer uses App Connect 12.x with bundled MQ.
Need advice on implementing the logic marked as "Unknown mechanism" on the diagram below that depicts above integration requirement. "Unknown mechanism" can be a separate message flow which listens to messages on the queue once received compare it to the waiting message flow instances and send it to the correct one.