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45 lines
1.3 KiB
Python
45 lines
1.3 KiB
Python
# metadata-ingestion/examples/library/datacontract_add_schema_contract.py
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import logging
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from datahub.emitter.mce_builder import make_assertion_urn
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from datahub.emitter.mcp import MetadataChangeProposalWrapper
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from datahub.emitter.rest_emitter import DatahubRestEmitter
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from datahub.ingestion.graph.client import DatahubClientConfig, DataHubGraph
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from datahub.metadata.schema_classes import (
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DataContractPropertiesClass,
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SchemaContractClass,
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)
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log = logging.getLogger(__name__)
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logging.basicConfig(level=logging.INFO)
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contract_urn = "urn:li:dataContract:purchases-contract"
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graph = DataHubGraph(config=DatahubClientConfig(server="http://localhost:8080"))
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contract_properties = graph.get_aspect(
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entity_urn=contract_urn,
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aspect_type=DataContractPropertiesClass,
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)
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if not contract_properties:
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log.error(f"Contract {contract_urn} not found")
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exit(1)
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new_schema_assertion_urn = make_assertion_urn("new-schema-assertion")
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existing_schema = contract_properties.schema or []
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existing_schema.append(SchemaContractClass(assertion=new_schema_assertion_urn))
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contract_properties.schema = existing_schema
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event = MetadataChangeProposalWrapper(
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entityUrn=contract_urn,
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aspect=contract_properties,
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)
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rest_emitter = DatahubRestEmitter(gms_server="http://localhost:8080")
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rest_emitter.emit(event)
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log.info(f"Added schema contract to {contract_urn}")
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