Creating a subject
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Updated at December 20, 2024
You can create a subject:
- On the Subjects tab, independently from a schema.
- When uploading a new schema.
Creating a subject independently from a schema
Management console
- In the management console, select the folder where you want to create a subject.
- Select Yandex MetaData Hub.
- In the left-hand panel, select Schema Registry.
- Select the namespace you want to create a subject in.
- In the left-hand panel, select Subjects.
- In the top-right corner, click Create subject.
- Specify the following parameters:
- Subject name and description.
- Compatibility check level:
BACKWARD: (Default) Consumers using the new schema can read data written by producers using the latest registered schema.BACKWARD_TRANSITIVE: Consumers using the new schema can read data written by producers using all previously registered schemas.FORWARD: Consumers using the latest registered schema can read data written by producers using the new schema.FORWARD_TRANSITIVE: Consumers using all previously registered schemas can read data written by producers using the new schema.FULL: New schema is forward and backward compatible with the latest registered schema.FULL_TRANSITIVE: New schema is forward and backward compatible with all previously registered schemas.NONE: Schema compatibility checks are disabled.
For more information about schema compatibility types, see the Confluent documentation.
- Under Schema:
- Set the schema format to Protobuf, Avro, or JSON Schema and attach the file.
- If a schema references another schema, in the References section, click and enter the reference name, the subject name the schema is registered under for linking, and the registered subject's schema version.
- To apply data schema normalization, enable the Normalization setting.
- If you want to skip schema compatibility checking, enable the relevant option.
- Click Create.
Creating a subject when uploading a schema
To create a subject when uploading a schema, select New in the Subject field and specify the subject parameters: name, description, and compatibility check level. For more information on how to creatie a subject when uploading a schema, see this guide.