# Publish message action

This action publishes a message to a Confluent Cloud topic you specify.

# Input fields

Field Description
Topic Select a topic from the list or enter the topic name.
Message schema source Select where your message schema is defined from either your common data models or your schema registry in Confluent Cloud. To retrieve schemas from your schema registry, you must configure your Confluent Cloud connection with your Stream Governance API credentials.
Message schema Select a message schema from your common data models or schema registry.
Message Provide the message you plan to publish. The available fields are dependent on the message schema you selected.
Key Provide the message key. This value is stored with the message. Kafka uses the key to select an appropriate topic partition when the partition is not assigned explicitly. Only string keys are supported.
Partition Determine a partition for your message. You can explicitly publish a message to the specific topic partition. The index starts at 0. Otherwise, Kafka selects the partition automatically.

# Output fields

Field Description
Key The key of the message.
Message The message content.
Raw message The raw message content.
Partition The partition where the message was published.
Offset The offset of the message in the partition.
Timestamp The timestamp when the message was created.
Size The size of the message in bytes.


Last updated: 9/17/2024, 7:39:13 PM