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Effortless App Development with Oracle Visual Builder

You're reading from   Effortless App Development with Oracle Visual Builder Boost productivity by building web and mobile applications efficiently using the drag-and-drop approach

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Product type Paperback
Published in Mar 2021
Publisher Packt
ISBN-13 9781800569805
Length 500 pages
Edition 1st Edition
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Author (1):
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Ankur Jain Ankur Jain
Author Profile Icon Ankur Jain
Ankur Jain
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Table of Contents (23) Chapters Close

Preface 1. Section 1: Exploring the Building Blocks of VB
2. Chapter 1: What, Why, and How (WWH) of Visual Builder FREE CHAPTER 3. Chapter 2: Provisioning and Understanding the Visual Builder Instance 4. Chapter 3: Exploring Visual Builder Ingredients 5. Section 2: Working with Data and Services
6. Chapter 4: Creating and Managing Business Objects 7. Chapter 5: Creating and Managing Service Connections 8. Chapter 6: Building Web Applications Using Real-World Examples 9. Chapter 7: Working with Life Cycle Events, Validations, and UI Logic 10. Section 3: Building Web and Mobile Apps Using Various VB Components
11. Chapter 8: Exploring Other Visual Components and Their Advanced Functionalities 12. Chapter 9: Extending Oracle and Non-Oracle SaaS Applications 13. Chapter 10: Working with Business Processes 14. Chapter 11: Building a Mobile Application with Live Examples 15. Section 4: Security, Recommendations, Best Practices, and Troubleshooting
16. Chapter 12: Securing VB Applications 17. Chapter 13: Understanding and Managing Various Stages of a VB App 18. Chapter 14: Best Practices and Recommendations for VB Applications 19. Chapter 15: Troubleshooting and Debugging VB Applications 20. Chapter 16: Managing VB Apps Using Visual Builder Studio 21. Assessments 22. Other Books You May Enjoy

Exception handling

In this section, we'll look at how to handle exceptions in the VB application when any issue is raised and provide a meaningful message to users. When you develop an application and deliver it to the end users to use it, they may face different kinds of issues, such as data issues, network issues, REST API issues, and so on.

When an issue is raised when using the application, a system-generated message is thrown, which an end user cannot understand. So, it's the developer's responsibility to suppress the system-generated message and show user-friendly messages to users.

In the subsequent sections, we'll describe how to handle exceptions at different levels.

Handling REST API exceptions

In this section, we'll look at how to handle exceptions related to REST APIs. In VB, we use REST APIs extensively for data communication, so it's very important to handle exceptions in the case of any issues. In order to call REST APIs, we...

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