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* Add protobufMessageNameForKeyByTopic option to config. Message keys are deserialized using a protobuf schema if the config is set. Otherwise message keys are treated as strings. Closes #1699 * Add documentation around kafkaui's protobuf support * Add protobufMessageNameForKey config option * Update README with info about default types * Imeplement support for protobufMessageNameForKeyByTopic * fallback to FALLBACK_FORMATTER * Add ability to publish message with protobuf key * Change log levels to debug and add @Nullable annotations * Attempt at fixing documentation workflow Co-authored-by: Ilya Kuramshin <ilia-2k@rambler.ru> Co-authored-by: Roman Zabaluev <rzabaluev@provectus.com> Co-authored-by: Roman Zabaluev <github@haarolean.dev>
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Kafkaui Protobuf Support
Kafkaui supports deserializing protobuf messages in two ways:
- Using Confluent Schema Registry's protobuf support.
- Supplying a protobuf file as well as a configuration that maps topic names to protobuf types.
Configuring Kafkaui with a Protobuf File
To configure Kafkaui to deserialize protobuf messages using a supplied protobuf schema add the following to the config:
kafka:
clusters:
- # Cluster configuration omitted.
# protobufFile is the path to the protobuf schema.
protobufFile: path/to/my.proto
# protobufMessageName is the default protobuf type that is used to deserilize
# the message's value if the topic is not found in protobufMessageNameByTopic.
protobufMessageName: my.Type1
# protobufMessageNameByTopic is a mapping of topic names to protobuf types.
# This mapping is required and is used to deserialize the Kafka message's value.
protobufMessageNameByTopic:
topic1: my.Type1
topic2: my.Type2
# protobufMessageNameForKey is the default protobuf type that is used to deserilize
# the message's key if the topic is not found in protobufMessageNameForKeyByTopic.
protobufMessageNameForKey: my.Type1
# protobufMessageNameForKeyByTopic is a mapping of topic names to protobuf types.
# This mapping is optional and is used to deserialize the Kafka message's key.
# If a protobuf type is not found for a topic's key, the key is deserialized as a string,
# unless protobufMessageNameForKey is specified.
protobufMessageNameForKeyByTopic:
topic1: my.KeyType1