We need to enable headers so that the bean type is sent for each kafk…

…a message (#6022)

examples/simple-json/src/main/java/io/apicurio/registry/examples/simple/json/SimpleJsonSchemaExample.java

@@ -22,6 +22,7 @@
 import io.apicurio.registry.rest.client.models.IfArtifactExists;
 import io.apicurio.registry.rest.client.models.VersionContent;
 import io.apicurio.registry.rest.client.models.VersionMetaData;
+import io.apicurio.registry.serde.config.KafkaSerdeConfig;
 import io.apicurio.registry.serde.config.SerdeConfig;
 import io.apicurio.registry.serde.jsonschema.JsonSchemaKafkaDeserializer;
 import io.apicurio.registry.serde.jsonschema.JsonSchemaKafkaSerializer;
@@ -184,6 +185,8 @@ private static Producer<Object, Object> createKafkaProducer() {
         // Use the Apicurio Registry provided Kafka Serializer for JSON Schema
         props.putIfAbsent(ProducerConfig.VALUE_SERIALIZER_CLASS_CONFIG,
                 JsonSchemaKafkaSerializer.class.getName());
+        // Send metadata in message headers (includes the schema coordinates and the message bean type)
+        props.putIfAbsent(KafkaSerdeConfig.ENABLE_HEADERS, true);
 
         // Configure Service Registry location
         props.putIfAbsent(SerdeConfig.REGISTRY_URL, REGISTRY_URL);
@@ -215,6 +218,8 @@ private static KafkaConsumer<Long, MessageBean> createKafkaConsumer() {
         // Use the Apicurio Registry provided Kafka Deserializer for JSON Schema
         props.putIfAbsent(ConsumerConfig.VALUE_DESERIALIZER_CLASS_CONFIG,
                 JsonSchemaKafkaDeserializer.class.getName());
+        // Read metadata from message headers (includes the schema coordinates and the message bean type)
+        props.putIfAbsent(KafkaSerdeConfig.ENABLE_HEADERS, true);
 
         // Configure Service Registry location
         props.putIfAbsent(SerdeConfig.REGISTRY_URL, REGISTRY_URL);