![]() The topic exchange attempts to find a matching binding key for the routing key. The "#" wildcard matches zero or more words in the routing key. The "" wildcard matches exactly one word in the routing key. Words are matched exactly unless the wildcard characters ( ) or (#) are used. Each binding key can contain multiple words separated by dots. The topic exchange compares the routing key of the incoming message with the binding keys specified in the queue bindings. It simply forwards the message to all bound queues. It doesn't consider the message's routing key or any pattern matching. In a fanout exchange, the routing logic is straightforward. If multiple queues have the same routing key, the message is delivered to all of them. If a match is found between the routing key and the binding, the message is routed to the corresponding queue(s). The direct exchange compares the routing key of the incoming message with the routing keys specified in the bindings. RabbitMQ provides differentĮxchange types such as direct, topic, fanout, headers, dead letter exchanges, but today we will focus on the direct
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