ArcGIS REST Services Directory
JSON

Relationships : (Imagery/i10_Image_Service_Index)

{"relationships": [
 {
  "id": 0,
  "name": "i10_Image_Service_Index_Aerial_Photography_Elevation",
  "backwardPathLabel": "i10_Image_Service_Index",
  "originLayerId": 0,
  "originPrimaryKey": "Survey_ID",
  "forwardPathLabel": "i10_Image_Service_Index_Aerial",
  "destinationLayerId": 1,
  "originForeignKey": "Survey_ID",
  "rules": [],
  "cardinality": "esriRelCardinalityOneToOne",
  "attributed": false,
  "composite": false
 },
 {
  "id": 1,
  "name": "i10_Image_Service_Index_AsBuilts_Design",
  "backwardPathLabel": "i10_Image_Service_Index",
  "originLayerId": 0,
  "originPrimaryKey": "Survey_ID",
  "forwardPathLabel": "i10_Image_Service_Index_AsBuilts",
  "destinationLayerId": 2,
  "originForeignKey": "Survey_ID",
  "rules": [],
  "cardinality": "esriRelCardinalityOneToOne",
  "attributed": false,
  "composite": false
 },
 {
  "id": 2,
  "name": "i10_Image_Service_Index_Bathymetry",
  "backwardPathLabel": "i10_Image_Service_Index",
  "originLayerId": 0,
  "originPrimaryKey": "Survey_ID",
  "forwardPathLabel": "i10_Image_Service_Index_Bathy",
  "destinationLayerId": 3,
  "originForeignKey": "Survey_ID",
  "rules": [],
  "cardinality": "esriRelCardinalityOneToOne",
  "attributed": false,
  "composite": false
 }
]}