Retrive CI relationships (#897)

* Create Retrieve_CI_Relationships.js

Scripted Rest API to Retrive CI Relationships

* Update CmdbApi.js

Function to Retrieve Configuration Item (CI) Relationships.

* Update readme.md

Added te scripted REST API to retrieve CI relationships

Author: amigujarathi

Scripted REST Api/CMDB API/CmdbApi.js

@@ -387,6 +387,22 @@ createCiRelationship: function() {
             return new sn_ws_err.NotFoundError('No record found');
         }
     },
+/**
+ * Retrieve Configuration Item (CI) Relationships.
+ * Mapped to GET /cis/relationships
+ *
+ * This function retrieves CI relationships
+ *
+ * @returns {Object} JSON response containing the CI relationships or error details.
+ */
+ getRelationships: function() {
+        var self = this;
+
+        return self._getGrResultStream('cmdb_rel_ci', null, {
+            sysparm_limit: 100
+        });
+
+    },
 
 /**
 	 * Determine the type of source ID.

Scripted REST Api/CMDB API/Retrieve_CI_Relationships.js

@@ -0,0 +1,6 @@
+(function process(/*RESTAPIRequest*/ request, /*RESTAPIResponse*/ response) {
+
+    // implement resource here
+	return new CmdbApi(request, response).getRelationships();
+
+})(request, response);

Scripted REST Api/CMDB API/readme.md

@@ -10,6 +10,7 @@ Table of Contents
 6. Retrieve CI Relationship types
 7. Retrieve CIs
 8. Update CI
+9. Retrieve CI Relationships
 
 1. Create CIs
   This API is designed to create Configuration Items (CIs).
@@ -130,3 +131,18 @@ Table of Contents
     Response:
       Status Code: 200 OK
       Response Body: JSON with required fields
+
+9. Retrieve CI relationships
+    This API is designed to retrieve  Configuration Item (CI) relationships.
+    Request Details:
+      Type: HTTP
+      Method: GET
+      URI: https://<service-now-domain>.service-now.com/api/cis/relationships
+      Headers:
+       Accept: application/json
+       Content-Type: application/json
+    Request Body:
+      NA
+    Response:
+      Status Code: 200 OK
+      Response Body: JSON with CI relationships required details