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Generator configuration

jsonSchemaHint

Commentary​

added in 0.10.10

local configuration

Explicitly defines the JSON Schema for generated data. Takes a map of generator keys to JSON schemas.

Examples​

Providing the JSON schema​

Set the keys in the map to the fields in the generator. In this example, the schema is defined for the value field in Kafka events tracked by Schema Registry.

{
    "generators": [
        {
            "topic": "sandbox",
            "value": {
                "_gen": "normalDistribution",
                "mean": 10,
                "sd": 5,
                "clamp": [
                    0,
                    15
                ]
            },
            "localConfigs": {
                "jsonSchemaHint": {
                    "value": {
                        "type": "number",
                        "minimum": 0
                    }
                }
            }
        }
    ],
    "connections": {
        "kafka": {
            "kind": "kafka",
            "producerConfigs": {
                "bootstrap.servers": "localhost:9092",
                "schema.registry.url": "http://localhost:8081",
                "key.serializer": "io.confluent.kafka.serializers.json.KafkaJsonSchemaSerializer",
                "value.serializer": "io.confluent.kafka.serializers.json.KafkaJsonSchemaSerializer"
            }
        }
    }
}

Specification​

JSON schema​

{
    "type": "object"
}