Metadata for Datastore Identity in XML and JSON Payloads
- Last Updated: October 26, 2026
- 1 minute read
- Corticon
- Version 7.3
- Documentation
When Element attributes have extra information at the Entity Element level, data such as the datastore identity requires special handling as metadata because it is not an attribute in the Vocabulary. It is invalid to declare the datastore identity as an Element, as shown:
<?xml version="1.0" encoding="UTF-8"?>
<CorticonRequest decisionServiceName="MyDS">
<WorkDocuments>
<TestEntity1 id="TestEntity1_id_1">
<!-- _this is incorrect_-->
<databaseid>1</databaseid>
<testBoolean xsi:nil="true" />
<testDate xsi:nil="true" />
<testDateTime xsi:nil="true" />
<testDecimal xsi:nil="true" />
<testInteger xsi:nil="true" />
<testString xsi:nil="true" />
<testTime xsi:nil="true" />
</TestEntity1>
</WorkDocuments>
</CorticonRequest>
Adding Datastore Identity to an XML Payload
For an XML payload, databaseid is placed inside the Element, as shown:
<?xml version="1.0" encoding="UTF-8"?>
<CorticonRequest decisionServiceName="MyDS">
<WorkDocuments>
<!-- databaseid is an attribute -->
<TestEntity1 databaseid="1" id="TestEntity1_id_1">
<testBoolean xsi:nil="true" />
<testDate xsi:nil="true" />
<testDateTime xsi:nil="true" />
<testDecimal xsi:nil="true" />
<testInteger xsi:nil="true" />
<testString xsi:nil="true" />
<testTime xsi:nil="true" />
</TestEntity1>
</WorkDocuments>
</CorticonRequest>
Adding Datastore Identity to a JSON Payload
In JSON formatting, the #datastore_id is placed in the __metadata section of the Entity, as shown:
{
"name":"MyDS",
"Objects": [{
"testDate": null,
"testDecimal": null,
"testDateTime": null,
"testString": null,
"testBoolean": null,
"testInteger": null,
"testTime": null,
"__metadata": {
"#id": "TestEntity1_id_1",
"#type": "TestEntity1",
"#datastore_id": "1"
}
}]
}
For more information about datastore identity, see the topic Identity strategies.