ServiceNow Catalog Request Approval Chain Preview (#2620)

* Create Readme.md

* Create script include.js

* Create client script.js

Author: Maheshkh9738

Client-Side Components/Catalog Client Script/Catalog Approval/Readme.md

@@ -0,0 +1 @@
+This project adds a dynamic preview feature to Service Catalog items, allowing users to see the full approval chain before submitting a request. It improves transparency, reduces confusion, and helps users understand who will be involved in the approval process based on their selections.

Client-Side Components/Catalog Client Script/Catalog Approval/client script.js

@@ -0,0 +1,10 @@
+function onLoad() {
+  var ga = new GlideAjax('ApprovalChainHelper');
+  ga.addParam('sysparm_name', 'getApprovers');
+  ga.addParam('sysparm_item_id', g_form.getUniqueValue());
+  ga.getXMLAnswer(function(response) {
+    var approvers = JSON.parse(response);
+    var message = 'This request will be approved by: ' + approvers.join(', ');
+    g_form.showFieldMsg('requested_for', message, 'info');
+  });
+}

Client-Side Components/Catalog Client Script/Catalog Approval/script include.js

@@ -0,0 +1,20 @@
+var ApprovalChainHelper = Class.create();
+ApprovalChainHelper.prototype = Object.extendsObject(AbstractAjaxProcessor, {
+  getApprovers: function() {
+    var itemId = this.getParameter('sysparm_item_id');
+    var userId = gs.getUserID();
+
+    var approvers = [];
+
+    // Example logic: fetch approval rules based on item and user
+    var ruleGR = new GlideRecord('sysapproval_approver');
+    ruleGR.addQuery('document_id', 80f8920bc3e4b2105219daec050131e3);
+    ruleGR.query();
+
+    while (ruleGR.next()) {
+      approvers.push(ruleGR.approver.name.toString());
+    }
+
+    return JSON.stringify(approvers);
+  }
+});