RabbitMQ Message Queue Exists or Not?

Don't bother checking. Queue. Declare is an idempotent operation.

So, if you run it once, twice, N times, the result will still be the same. If you want to ensure that the queue exists, just declare it before using it. Make sure you declare it with the same durability, exclusivity, auto-deleted-ness every time, otherwise you'll get an exception.

If you actually do need to check if a queue exists (you shouldn't normally need to), do a passive declare of the queue. That operation succeeds if the queue exists, or fails in an error if it doesn't.

Can you please Mention the Syntax for declaring the queue passively in c# api – Jigar Sheth Aug 11 '10 at 11:15 Use IModel. QueueDeclare and set passive to true. Rabbitmq.com/releases/rabbitmq-dotnet-client/v1.8.1/… – scvalex Aug 11 '10 at 11:20 I did declare the queue before using it..worked fine..thanks – Jigar Sheth Aug 12 '10 at 5:29.

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