Book Image

Mastering ServiceNow - Second Edition

Book Image

Mastering ServiceNow - Second Edition

Overview of this book

ServiceNow is a SaaS application that provides workflow form-based applications. It is an ideal platform for creating enterprise-level applications giving requesters and fulfillers improved visibility and access to a process. ServiceNow-based applications often replace email by providing a better way to get work done. The book steps through the main aspects of the ServiceNow platform, from the ground up. It starts by exploring the core architecture of ServiceNow, including building the right data structure. To add business logic and control data, and interactivity to user interaction, you will be shown how to code on both server and the client. You will then learn more about the power of tasks, events and notifications. The book will then focus on using web services and other mechanisms to integrate ServiceNow with other systems. Furthermore, you will learn how to secure applications and data, and understand how ServiceNow performs logging and error reporting. You will then be shown how to package your applications and changes, so they can be installed elsewhere and ways to maintain them easily. If you wish to create an alternative simple interface, then explore ways to make ServiceNow beautiful using Service Portal. By the end of the book, you will know the fundamentals of the ServiceNow platform, helping you be a better ServiceNow System Administrator or developer.
Table of Contents (18 chapters)
Mastering ServiceNow Second Edition
Credits
Notice
About the Author
About the Reviewer
www.PacktPub.com
Preface

Dealing with events


Firing an event is a way to tell the platform that something happened. Since ServiceNow is a data-driven system, in many cases, this means that a record has been updated in some way. For instance, maybe a guest has been made a VIP or has made 20 reservations.

Several parts of the system may be listening for an event to happen. When it does, they perform an action. One of these actions may be sending an e-mail to thank our guest for their continued business.

Note

You don't need to create an event to fire e-mail notifications. However, it is a good example to work through.

Events are fired using server-side code. Each includes a GlideRecord object and up to two string parameters. The item receiving this data can then use it as necessary, so if we want to send an e-mail confirming a hotel booking, we have the Reservation record to refer to during processing.

Registering events

Before an event can be fired, it should be known to the system. (This is mandatory in scoped apps.) Do...