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

Chapter 3. Server-Side Control

In the first few chapters, we've see how ServiceNow can hold your data. We've made a few tables, started to link it together, and collected it together in a new application. But simply storing data isn't going to make an award winning application.

So it's wonderful that ServiceNow also gives you great control over your data: you can check it, change it, or censor it using a variety of mechanisms. As we progress through this chapter, we'll see how information can be validated by a data policy, emailed out with notifications, or secured by an access control rule.

All of these are good options on their own, but ServiceNow also gives you complete control through code. You can write scripts to control almost any action you can think of. So the main focus of this chapter is to give you a good understanding of how server-side scripting in ServiceNow works. Here's how this chapter is structured:

  • We will start by diving into server-side JavaScript, including how to access...