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

Business rules

Business rules are usually the most used server-side scripting method. It is possible to use business rules in a basic way that simply requires configuration, rather than customization. I will say that for the majority of requirements that need a business rule, you will most often need to add some sort of customization in the form of scripts.

A particularly helpful aspect of business rules is the different ways they can be triggered. This allows us to run our server-side scripts at different times, based on actions that occur to a record.

When first viewing the business rule form, there are two options for when to run the business rule. These are upon the insert or update of the record. With the business rule in this essentially basic view, we can configure the business rule to run on a filter condition or ownership of a role and change field values. If we want to do more than this, which is often the case, we need to tick the advanced tick box on the form.

Once the advanced...