Provide a way to specify a custom partitioner

[gurry]

Please allow a custom partitioner to be set in Streamiz as we can do in Confluent.Kafka's ProducerBuilder?

My requirement is that when my topology emits events it needs to use a partition key that is different from the event key

[LGouellec]

@gurry

What do you need as the inputs of the partitioner ? topic, key, value is enough ?

[gurry]

Thanks @LGouellec for picking this up.

Yes, absolutely. Topic, key and value would be perfect.