GlideAjax

[SRIRAMSANKAR007]

Explain GlideAjax in a simple way with two to three simple examples

[Rafael Batistot]

Hi @SRIRAMSANKAR007 

This is the best explanation 

https://www.servicenow.com/community/developer-articles/glideajax-example-cheat-sheet/ta-p/2312430

[dinesdh]

The important point is:

Client Script → runs in the browser
Script Include → runs on the server
GlideAjax → connects them

[yashkamde]

Hello @SRIRAMSANKAR007 ,

GlideAjax is a client side API in ServiceNow that enables client scripts to execute server side code without reloading the webpage. It acts as a performance friendly communication between the browser (Client Script) and the database (Script Include) to retrieve data or perform calculations dynamically.

For Examples :

1) Get today's date/server time :

var DateUtils = Class.create();
DateUtils.prototype = Object.extendsObject(AbstractAjaxProcessor, {
    getServerDate: function() {
        return new GlideDateTime().getDisplayValue();
    },
    type: 'DateUtils'
});

client script :

var ga = new GlideAjax('DateUtils');
ga.addParam('sysparm_name', 'getServerDate');
ga.getXML(function(response) {
    var date = response.responseXML.documentElement.getAttribute('answer');
    alert('Server date: ' + date);
});

2) Passing a parameter: Check if Incident has open Problem 

script include :

var IncidentUtils = Class.create();
IncidentUtils.prototype = Object.extendsObject(AbstractAjaxProcessor, {
    hasOpenProblem: function() {
        var incidentSysId = this.getParameter('sysparm_incident_id');
        var gr = new GlideRecord('problem');
        gr.addQuery('rfi', incidentSysId); // example query
        gr.addActiveQuery();
        gr.query();
        return gr.hasNext() ? 'true' : 'false';
    },
    type: 'IncidentUtils'
});

client script :

var ga = new GlideAjax('IncidentUtils');
ga.addParam('sysparm_name', 'hasOpenProblem');
ga.addParam('sysparm_incident_id', g_form.getUniqueValue());
ga.getXMLAnswer(function(answer) {
    if (answer === 'true') {
        g_form.showFieldMsg('short_description', 'This incident has a linked open problem', 'warning');
    }
});

If my response helped mark as helpful and accept the solution.