ArcGIS REST Services Directory
JSON

Relationships : (PW_SignsInventory/Signs_Inventory_Editing_Field_Maps)

{"relationships": [{
 "id": 0,
 "name": "OCPW_RoadSign_Inventory_OCPW_RoadSign_Inventory_TABLE",
 "backwardPathLabel": "OCPW_RoadSign_Inventory",
 "originLayerId": 0,
 "originPrimaryKey": "SIGN_ID",
 "forwardPathLabel": "OCPW_RoadSign_Inventory_TABLE",
 "destinationLayerId": 2,
 "originForeignKey": "SIGN_ID",
 "rules": [],
 "cardinality": "esriRelCardinalityOneToMany",
 "attributed": false,
 "composite": false
}]}