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


The GlideSession class has no constructor, but it is returned from the getSession() method of the GlideSystem API (gs.getSession();). This API allows you to get and set data related to the current session.

getClientData() and putClientData()

The getClientData() and putClientData() methods allow you to set data in the user's session from a server-side script using putClientData(), and then retrieve that data using getClientData() from a client-side script.

This functionality can be extremely useful for passing data back-and-forth between the server and client, without performance-costly synchronous queries or time-consuming Ajax calls. Usually a display business rule and using g_scratchpad would make more sense, but there are plenty of use-cases for these APIs as well.

Example usage

In a business rule on the Incident table, we can place some data in the user's client session like so:

var userSession = gs.getSession(); 
session.putClientData('ticket_number', current.getValue('number...