@niketnilay, thank you for your reply. I tested your suggestion, however it is not working. The two "console.log(alertid);" and "console.log(filename);" before search execution output are correct, but "Search started" or "search:done" status is not shown. Please find the my complete JS code follows: require([ "splunkjs/mvc", "splunkjs/mvc/searchmanager", "splunkjs/mvc/simplexml/ready!" ], function(mvc) { var SearchManager = require("splunkjs/mvc/searchmanager"); // Get the Events table var myEventsTable = mvc.Components.get('myevents'); // Respond to a click event myEventsTable.on("click", function(e) { // Get the default model var tokens = mvc.Components.get("default"); var alertid= tokens.get("src_type_tok"); var ctime = new Date().getTime(); // create file and path var var filename = ctime + "_" + alertid + ".png"; console.log(alertid); console.log(filename); var search = new SearchManager({ "id": "search_img", "earliest_time": "-5m@m", "latest_time": "now", "search": "| imgsearch $alertid$ $filename$", // this one not working //"search": "| imgsearch 3215687 153857376_3215687.png", // this is working fine "cancelOnUnload": true, "autostart": false, "auto_cancel": 90, "preview": false, "cache": false, "tokenDependencies": { }, "runWhenTimeIsUndefined": false }, {tokens: true, tokenNamespace: "submitted"}); console.log("after search function"); search.on('search:failed', function() { console.log("Search failed"); }.bind(this)); search.on("search:start", function() { console.log("Search started"); }.bind(this)); search.on("search:done", function() { console.log("Search completed"); }.bind(this)); // Start the search search.startSearch(); }); }); ... View more

the answer is found in the following thread: http://answers.splunk.com/answers/225024/get-current-username-from-splunkjs.html#comment-312545 ... View more