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

Logs and queues best practices

Logs and queues are an important part of a ServiceNow instance. Logs are used throughout ServiceNow to record events occurring in an instance. These are used in debugging, as we have seen, and these logs should be well-defined when included.

Queues are seen in ServiceNow in a number of areas, from the ECC queue to the system scheduler. These queues build up jobs or actions to be performed when the time is right.

When using logs and queues, it is important to make logs clear and only create jobs or event in queues where necessary.


Logs need to be created with clear information given for each log, and to be sent to the right logging location to ensure that the information can be easily read. We covered some logging techniques in the debugging section or how to write good logs, but we also need to make sure that we send logs to the correct log itself.

When using gs.log, we can specify a source to send the logs to. If no source is specified, then *** Script will...