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

When to use update sets

Update sets are used in ServiceNow to move functionality from one instance to another. If you are making some changes in a development instance which you would like to later move to a production instance, then update sets are recommended.

An update set captures changes that you make to an instance, inside the update set, while they are being made. Once all the changes that you would like captured are finished, the update set is complete and is ready to be moved to another instance. When moved to another instance, the update set can be previewed to check that the changes are compatible with the instance and committed to apply the changes.

Before making any changes that you intend to move to another instance, your first task should be to create a new update set to contain those changes. Before you start making changes, ensure that you are working inside the update set. Once the updates are complete, complete the update set that is ready to move to another instance.