Hi fishes,

Can someone please explain in what scenarios message queues like Kafka's are used over Web client for communication between microservices.

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Kafkas are having topics and not queues.
Topic means broadcasting.
You can configure the topics to behave in a queue kind of way too.
In inter-micro-services communication, it can be used for asynchronous communications.
For example, you are generating an audit, but you don’t want to depend on whether the audit gets processed in realtime, in that case, just use a topic and drop your messages. The processing of audit will happen in the backend without halting your main process.
There are lot of other examples where you can use Kafka or Queues like Apache ActiveMQ, Artemis MQ

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It is mainly used from any form of streaming or real time to and fro of data requests.

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