Function addItemRelationship

addItemRelationship(requestOptions): Promise<{
success: boolean;
}>
```
import { addItemRelationship } from "@esri/arcgis-rest-portal";
//
addItemRelationship({
  originItemId: '3ef',
  destinationItemId: 'ae7',
  relationshipType: 'Service2Layer',
  authentication
})
  .then(response)
```
Add a relationship between two items. See the REST Documentation for more information.
Parameters
- requestOptions: IManageItemRelationshipOptions
  Options for the request
Returns Promise<{
success: boolean;
}>
A Promise to add item resources.
- Defined in node_modules/@esri/arcgis-rest-portal/dist/esm/items/add.d.ts:47