Add SkipEnqueue to let middleware skip enqueueing a message - #890
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Add SkipEnqueue to let middleware skip enqueueing a message#890ChrisJr404 wants to merge 1 commit into
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Closes #276.
This adds a
SkipEnqueuemiddleware error. When a middleware raises it from itsbefore_enqueuehook, the broker returns the message without publishing it, so a middleware can stop an enqueue (for example, to drop a message that is already on the queue) without having to overrideenqueueitself.It's handled in all three brokers (stub, Redis, RabbitMQ), and
after_enqueueis not emitted when a message is skipped. There are tests for each broker plus docs for the new exception and thebefore_enqueuebehaviour.