[GitHub] [pulsar] yjshen commented on issue #5934: Can support read/write properties from/to Message in flink pulsar consumer/producer

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yjshen commented on issue #5934: Can support read/write properties from/to Message in flink pulsar consumer/producer
URL: https://github.com/apache/pulsar/issues/5934#issuecomment-568889578
 
 
   Hi @duli559 , thanks for bringing this up.
   
   For the consumer, I think the proposed way is possible, your derived class could return a Tuple (Map, T) for each message, and use the tuple afterward.
   
   For the producer, the `invoke` method is invoked for each `value` in the stream, therefore,  you should use this `value` and tell which part goes into properties and which part went goes into Message body. I think you could extend the existing `FlinkPulsarProducer` directly and just overwrite the `invoke` method?

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