Check RabbitMQ queue size from client

Question

Does anyone know if there\'s a way to check the number of messages in a RabbitMQ queue from a client application?

I\'m using the .NET client library.

Answer 1

At least as of RabbitMQ 3.3.5, you can do this in a C# program without any RabbitMQ client library by calling the RabbitMQ Management HTTP API:

// The last segment of the URL is the RabbitMQ "virtual host name". 
// The default virtual host name is "/", represented urlEncoded by "%2F".
string queuesUrl = "http://MY_RABBITMQ_SERVER:15672/api/queues/%2F";

WebClient webClient = new WebClient { Credentials = new NetworkCredential("MY_RABBITMQ_USERNAME", "MY_RABBITMQ_PASSWORD") };
string response = webClient.DownloadString(queuesUrl);

The username and password are the same as those you use to log into the RabbitMQ management console UI.

Response will be a JSON string with the list of queues, including their message counts, among other properties. (If you like, you can deserialize that JSON into a C# object using a library like Json.NET.)

The API documentation is installed along with the RabbitMQ management console and should be available on that server at http://MY_RABBITMQ_SERVER:15672/api .