Book Image

Mastering ServiceNow Scripting

By : Andrew Kindred
Book Image

Mastering ServiceNow Scripting

By: Andrew Kindred

Overview of this book

Industry giants like RedHat and NetApp have adopted ServiceNow for their operational needs, and it is evolving as the number one platform choice for IT Service management. ServiceNow provides their clients with an add-on when it comes to baseline instances, where scripting can be used to customize and improve the performance of instances. It also provides inbuilt JavaScript API for scripting and improving your JavaScript instance. This book will initially cover the basics of ServiceNow scripting and the appropriate time to script in a ServiceNow environment. Then, we dig deeper into client-side and server-side scripting using JavaScipt API. We will also cover advance concepts like on-demand functions, script actions, and best practices. Mastering ServiceNow Scripting acts as an end-to-end guide for writing, testing, and debugging scripts of ServiceNow. We cover update sets for moving customizations between ServiceNow instances, jelly scripts for making custom pages, and best practices for all types of script in ServiceNow. By the end of this book, you will have hands-on experience in scripting ServiceNow using inbuilt JavaScript API.
Table of Contents (18 chapters)
Title Page
Packt Upsell

End-to-end development

Once an application has been created on an instance, we can move on to developing the application. When we are in the application scope of our application, all customizations are added to the application. We can either make changes to the instance in the same way we usually would do development outside of an application, for example, creating and amending scripts, or we can use the studio ServiceNow provides for us.


The studio was created by ServiceNow for use when creating custom applications. Some developers prefer the studio, as it shows the application in one place, whereas others prefer to develop as they would in the global scope.

To access the studio, navigate to System Applications | Studio. This will open a new tab in your browser and give us the opportunity to load one of the applications that have been created on the current instance.

We can see the Load Application form in Figure 12.9:

Figure 12.9: Studio load application form

In the list, you will see...