Kafka Connect Deep Dive – Converters and Serialization Explained | Confluent

This post provides a deep dive into Kafka Connect converters and serialization, explaining how Kafka messages are just bytes and the importance of choosing a serialization format (JSON, Avro, Protobuf, String delimited). It details how converters handle serialization and deserialization, the configuration of converters (including key.converter and value.converter), and common errors encountered when using JSON and Avro converters. It also covers troubleshooting tips and internal converters.