Kafka Producer
- Description
- Options
  - Options
  - Avro and Schema registry

Kafka Producer

Description

The Kafka Producer transform allows you to publish messages in near-real-time across worker nodes where multiple, subscribed members have access.

A Kafka Producer transform publishes a stream of records to one Kafka topic.

Options

Option	Description
Transform name	the name for this transform
Bootstrap servers	comma separated list of bootstrap servers in a Kafka cluster
Client ID	The unique Client identifier, used to identify and set up a durable connection path to the server to make requests and to distinguish between different clients.
Topic	The category to which records are published.
Key Field	In Kafka, all messages can be keyed, allowing for messages to be distributed to partitions based on their keys in a default routing scheme. If no key is present, messages are randomly distributed to partitions.
Message Field	The individual record contained in a topic.

Options

Use this tab to configure the property formats of the Kafka consumer broker sources. A few of the most common property formats have been included for your convenience. You can enter any desired Kafka property. For further information on these input names, see the Apache Kafka documentation site: https://kafka.apache.org/documentation/.

The options that are included by default are:

Option	Value
auto.offset.reset	latest
ssl.key.password
ssl.keystore.location
ssl.keystore.password
ssl.truststore.location
ssl.truststore.password

Avro and Schema registry

Here are some options you need to send Avro Record values to a Kafka server. The schema of Avro values are not sent to Kafka but to a schema registry. As such you need to have one available. Here are some options you need to set to make this work on a Confluent Cloud Kafka instance. There are various parts of the software stack that need authentication, hence the bit of redundancy. We recommend that you put these options in variables in your environment configuration file.

Option	Example
schema.registry.url	https://abcd-12345x.europe-west3.gcp.confluent.cloud
value.converter.schema.registry.url	https://abcd-12345x.europe-west3.gcp.confluent.cloud
auto.register.schemas	true
security.protocol	SASL_SSL
sasl.jaas.config	org.apache.kafka.common.security.plain.PlainLoginModule required username=”CLUSTER_API_KEY” password=”CLUSTER_API_SECRET”;
username	CLUSTER_API_KEY
password	CLUSTER_API_SECRET
sasl.mechanism	PLAIN
client.dns.lookup	use_all_dns_ips
acks	ALL
basic.auth.credentials.source	USER_INFO
basic.auth.user.info	CLUSTER_API_KEY:CLUSTER_API_SECRET
schema.registry.basic.auth.user.info	SCHEMA_REGISTRY_API_KEY:SCHEMA_REGISTRY_API_SECRET