Bad Consumer implementation in KafkaConsumer Controller

还没有人认领这个 Issue。


If you activate the 'consumer.on message' event, this never ends, you will hear the messages until eternity.

Although there is a consumer, the closure of something happens with the life cycle and the consumer's problems a little more after sending the response.

Maybe I should wait for the consumer.close callback to issue the answer.

Therefore, if the controller issues his response and after this, the listener adds a new message to the response, we will get this error.

By definition, the consumer of Kafka behaves like a service or a demon and must start as a process at the beginning of the application.

Could you explain the best practice to do this? In loopback 3 we would use 'boot' directory to add a file with this responsibility.

Start by examining the KafkaConsumer Controller and the consumer.on message lifecycle described in the issue. Compare the requested startup responsibility with the LoopBack 3 boot directory approach. Done means documenting the recommended way to run the Kafka consumer as an application-started service and avoid sending responses after the controller lifecycle ends.

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