I'd like to use the kafka-console-producer.sh to fire a few JSON messages with Kafka headers.
Is this possible?
docker exec -it kafka_1 /opt/kafka_2.12-2.3.0/bin/kafka-console-producer.sh --broker-list localhost:9093 --topic my-topic --producer.config /opt/kafka_2.12-2.3.0/config/my-custom.properties
No, but you can with kafkacat
's -H
argument:
Produce:
echo '{"col_foo":1}'|kafkacat -b localhost:9092 -t test -P -H foo=bar
Consume:
kafkacat -b localhost:9092 -t test -C -f '-----\nTopic %t[%p]\nOffset: %o\nHeaders: %h\nKey: %k\nPayload (%S bytes): %s\n'
-----
Topic test[0]
Offset: 0
Headers: foo=bar
Key:
Payload (9 bytes): col_foo:1
% Reached end of topic test [0] at offset 1