Cannot Push Kafka → EventMesh → HTTP Webhook (CloudEvents) despite correct config #5212

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Question

Hi team,

We are trying to use EventMesh as a Kafka → HTTP push gateway using CloudEvents in EKS and are stuck even after coup days of troubleshooting.

Kafka (Confluent Platform – KRaft mode)
↓
EventMesh Runtime (storage-plugin: kafka, protocol: cloudevents)
↓
HTTP Consumer (Python server expecting POST events)

What works

EventMesh HTTP publish API:

POST /eventmesh/publish/demo-user
→ HTTP consumer receives the event correctly.

EventMesh logs repeatedly show:

Value Deserializers with error: io.cloudevents.kafka.CloudEventDeserializer

Even after switching to:

eventMesh.protocol.type=cloudevents
eventMesh.server.kafka.deserializer.type=cloudevents
eventMesh.server.kafka.value.deserializer=io.cloudevents.kafka.CloudEventDeserializer

EventMesh logs repeatedly show:

Value Deserializers with error: io.cloudevents.kafka.CloudEventDeserializer

Even after switching to:

eventMesh.protocol.type=cloudevents
eventMesh.server.kafka.deserializer.type=cloudevents
eventMesh.server.kafka.value.deserializer=io.cloudevents.kafka.CloudEventDeserializer

We need help determining:

Is the CloudEventDeserializer actually supported in runtime with Kafka storage?
Is binary-mode CloudEvents supported for Kafka → HTTP push?

Any working example of:
Kafka producer (CloudEvents)
EventMesh CloudEvents protocol
Kafka → EventMesh → Webhook push config

I can share logs, configs, YAML, and producer code if needed.

Thanks for your support