ServicePortal Help?

[ServiceNowEmp]

How does data flow between the server script and the client controller in a widget? What’s the best way to handle asynchronous updates?

[Ravi Gaurav · Accepted solution]

Hi @ServiceNowEmp 

When the widget loads, the server script executes first on the ServiceNow server. The data object returned from the server script is sent to the client controller (AngularJS). This data object becomes available as c.data inside the client controller.

If you need to refresh or update data after the initial load (without reloading the whole widget), use spUtil.get or $http.post to call the server script again asynchronously.

[Ravi Gaurav · Accepted solution]

Let me know if you need any Sample Code 

[Ravi Gaurav · Accepted solution]

Hi @ServiceNowEmp 

When the widget loads, the server script executes first on the ServiceNow server. The data object returned from the server script is sent to the client controller (AngularJS). This data object becomes available as c.data inside the client controller.

If you need to refresh or update data after the initial load (without reloading the whole widget), use spUtil.get or $http.post to call the server script again asynchronously.

[Ravi Gaurav · Accepted solution]

Let me know if you need any Sample Code 

[ServiceNowEmp]

Yes Please that will be of great help !!

[Ravi Gaurav · Accepted solution]

// Server Script
(function() {
data.user = gs.getUserDisplayName();
data.incidents = [];
var gr = new GlideRecord('incident');
gr.addQuery('caller_id', gs.getUserID());
gr.query();
while (gr.next()) {
data.incidents.push({
number: gr.number.toString(),
short_description: gr.short_description.toString()
});
}
})();
js
Copy code
// Client Controller
function($scope) {
var c = this;
console.log(c.data.user); // Accesses value from server
}