Book Image

Learning ServiceNow. - Second Edition

5 (1)
Book Image

Learning ServiceNow. - Second Edition

5 (1)

Overview of this book

This book is an updated version of Learning ServiceNow, that will cover the new and updated features of the ServiceNow platform. It will show you how to put important ServiceNow features to work in the real world, while introducing key concepts via examples of managing and automating IT services. It'll help you build a solid foundation of knowledge, and will demonstrate how to effectively implement and configure modules within ServiceNow. We'll show you how to configure and administer your instance, and then move on to building strong user interfaces and creating powerful workflows. We also cover other key elements of ServiceNow, such as notifications, security, reporting, and custom development. You will learn how to improve and automate your business' workflow and processes. By the end of this book, you will be able to successfully configure and manage ServiceNow like a pro.
Table of Contents (19 chapters)
Learning ServiceNow Second Edition
Contributors
Preface
Index

GlideSystem


The GlideSystem server-side API is not constructed using the new keyword, but is available to all server-side scripts via the variable gs. This API allows us to get various kinds of useful information about the system, the user's session, the current date/time, or other bits of useful info. It also allows you to interact with the user, by displaying informational or error messages.

addErrorMessage() and addInfoMessage()

The addErrorMessage() method will display a red error message at the top of the user's browser window on the next page they load after the server-side script that calls this method runs. This same functionality can also be achieved from a client-script, using the g_form API (g_form.addErrorMessage()).

addInfoMessage() has the same effect, but instead displays a blue informational message as opposed to a red error message.

Example usage

The following script could run inside of a business rule or other server-side script, and show a message indicating whether the operation...