What are the steps to incorporate Kafka Transactions using Transaction Manager in Spring for Apache Kafka?

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1. Add the necessary dependencies

The first step when incorporating Kafka transactions is adding the necessary dependencies to your project. You need to include the Spring for Apache Kafka dependency, as well as the Kafka clients and the Kafka Transaction Manager.

1. Configure the transaction manager

To enable Kafka transactions in your Spring application, you need to configure a transaction manager. Depending on your requirements, you can use either the KafkaTransactionManager, the ChainedKafkaTransactionManager, or the JpaKafkaTransactionManager.

1. Define the transaction boundaries

The next step is to define the transaction boundaries. You can do this by using the @Transactional annotation or by explicitly beginning and committing transactions in your code.

1. Code your business logic

Now that you have set up the transaction manager and defined the transaction boundaries, you can code your business logic. All the Kafka operations that you perform within a transaction must be executed within the transaction boundaries.

1. Handle transaction errors

Lastly, you need to handle transaction errors. If a transaction fails, you need to ensure that it is rolled back properly. You can implement this using try-catch blocks and appropriate exception handling.