Hi, Correct me if I'm wrong, but from the discussion so far it seems like what Wouter is looking for is an HTTP-based ingress / egress.
We have been thinking about this in the past. The specifics of the implementation is still to be discussed, but to be able to ensure exactly-once processing semantics, behind the scenes of an HTTP-based ingress, external messages / response will still likely be routed through durable messaging systems such as Kafka / Pulsar / etc. Gordon -- Sent from: http://apache-flink-user-mailing-list-archive.2336050.n4.nabble.com/