What is GlideAjax?
GlideAjax is a class in ServiceNow which is used to execute server side code from client side. Client side scripts can be Client script, UI policies, UI script etc. So, definition clearly says that we must define GlideAjax in client side scripts.
What is GlideAjax in ServiceNow?
The GlideAjax class is used by client-side scripts to send data to and receive data from the ServiceNow server. The Script Include returns data as XML or a JSON object. The client-side script parses data from the response and can use the data in subsequent script logic.
How to use GlideAjax?
Create a GlideAjax instance by calling the GlideAjax constructor. As the argument to the constructor, specify the name of the script include class that contains the method you want to call. Call the addParam method with the sysparm_name parameter and the name of the script-include method you want to call.
What is Synchronous and Asynchronous GlideAjax?
In short, async happens “in the background”. The user doesn’t wait. Synchronous holds the client’s browser hostage while it waits for a response from the remote system. This is often seen in HTTP requests (GlideAjax, REST calls, etc.) The user doesn’t wait.
Do you define glideajax in client side script?
So, definition clearly says that we must define GlideAjax in client side scripts. But the Server side code which has to be executed through GlideAjax class should be defined in Script Include.
Which is an example of glideajax in ServiceNow?
For example, GlideAjax pass function name in parameter which it requires to execute at server end. Some example syntax are mentioned below: The main benefit of GlideAjax is that, we can easily calls pass parameters to the ServiceNow script include and using naming conventions.
What happens when you call Hello World on glideajax?
In this case we are calling helloWorld on the Script Include. Traditionally, GlideAjax has been fairly silent when it fails to find the correct Script Include or function on that Script Include. It just assumes you meant to do that and keeps on going with an empty or undefined response.
What is the function of abstractajaxprocessor in glideajax?
The AbstractAjaxProcessor Script Include provides a standard set of functions that every GlideAjax Script Include must implement. The interface basically acts as a mediator that allows extracting data from the XML request and building the XML response that GlideAjax relies upon for messaging between client and server.
