Username is a JSON Structure definition published by Salesforce, describing 31 properties, of which 31 are required. It conforms to the https://json-structure.org/draft/2020-12/schema meta-schema.
{
"type": "object",
"name": "Username",
"properties": {
"apiName": {
"type": "string"
},
"calculated": {
"type": "boolean"
},
"compound": {
"type": "boolean"
},
"compoundComponentName": {
"type": "['string', 'null']"
},
"compoundFieldName": {
"type": "['string', 'null']"
},
"controllerName": {
"type": "['string', 'null']"
},
"controllingFields": {
"type": "array",
"description": "",
"items": {
"type": "string"
}
},
"createable": {
"type": "boolean"
},
"custom": {
"type": "boolean"
},
"dataType": {
"type": "string"
},
"extraTypeInfo": {
"type": "['string', 'null']"
},
"filterable": {
"type": "boolean"
},
"filteredLookupInfo": {
"type": "['string', 'null']"
},
"highScaleNumber": {
"type": "boolean"
},
"htmlFormatted": {
"type": "boolean"
},
"inlineHelpText": {
"type": "['string', 'null']"
},
"label": {
"type": "string"
},
"length": {
"type": "integer"
},
"nameField": {
"type": "boolean"
},
"polymorphicForeignKey": {
"type": "boolean"
},
"precision": {
"type": "integer"
},
"reference": {
"type": "boolean"
},
"referenceTargetField": {
"type": "['string', 'null']"
},
"referenceToInfos": {
"type": "array",
"description": "",
"items": {
"type": "string"
}
},
"relationshipName": {
"type": "['string', 'null']"
},
"required": {
"type": "boolean"
},
"scale": {
"type": "integer"
},
"searchPrefilterable": {
"type": "boolean"
},
"sortable": {
"type": "boolean"
},
"unique": {
"type": "boolean"
},
"updateable": {
"type": "boolean"
}
},
"required": [
"apiName",
"calculated",
"compound",
"compoundComponentName",
"compoundFieldName",
"controllerName",
"controllingFields",
"createable",
"custom",
"dataType",
"extraTypeInfo",
"filterable",
"filteredLookupInfo",
"highScaleNumber",
"htmlFormatted",
"inlineHelpText",
"label",
"length",
"nameField",
"polymorphicForeignKey",
"precision",
"reference",
"referenceTargetField",
"referenceToInfos",
"relationshipName",
"required",
"scale",
"searchPrefilterable",
"sortable",
"unique",
"updateable"
],
"$schema": "https://json-structure.org/draft/2020-12/schema"
}