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

Scripting in scoped apps


Scoped applications represent a fresh start for ServiceNow. Application scope, introduced in the previous chapter, provides a bubble around each app, very carefully controlling what it can do.

Note

Almost all the code in this book is for our Hotel application. All the scripting functionality discussed, unless indicated otherwise, uses the scoped API.

Without scoping, when you run a server-side script, you have access to the whole database. Remember the warning when you ran a background script? You can easily delete every record in the user table. Your boss probably won't be happy if he can't log in to run some reports.

In many regards, scripting outside of a scoped application is like the Wild West: there is an "anything goes" attitude, where your clever moves might result in a gold mine-or the sheriff may take offence to your attitude. There are numerous clever tricks letting you access deep, dark parts of the platform, but this often results in relying on functionality...