You're reading from Mastering Apex Programming A Salesforce developer's guide to learn advanced techniques and programming best practices for building robust and scalable enterprise-grade applications

Product type Paperback

Published in Nov 2023

Publisher Packt

ISBN-13 9781837638352

Length 394 pages

Edition 2nd Edition

Languages

Apex

Tools

Salesforce

Concepts

CRM

Author (1):

Paul Battisson

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Table of Contents (28) Chapters

Preface

1. Section 1: Triggers, Testing, and Security

2. Chapter 1: Common Apex Mistakes FREE CHAPTER

3. Chapter 2: Debugging Apex

4. Chapter 3: Triggers and Managing Trigger Execution

5. Chapter 4: Exceptions and Exception Handling

6. Chapter 5: Testing Apex Code

7. Chapter 6: Secure Apex Programming

8. Section 2: Asynchronous Apex

9. Chapter 7: Utilizing Future Methods

10. Chapter 8: Working with Batch Apex

11. Chapter 9: Working with Queueable Apex

12. Chapter 10: Scheduling Apex Jobs

13. Section 3: Integrations

14. Chapter 11: Integrating with Salesforce

15. Chapter 12: Using Platform Events

16. Chapter 13: Apex and Flow

17. Chapter 14: Apex REST and Custom Web Services

18. Chapter 15: Outbound Integrations – REST

19. Chapter 16: Outbound Integrations – SOAP

20. Chapter 17: DataWeave in Apex

21. Section 4: Apex Performance

22. Chapter 18: Performance and the Salesforce Governor Limits

23. Chapter 19: Performance Profiling

24. Chapter 20: Improving Apex Performance

25. Chapter 21: Performance and Application Architectures

26. Index

Why subscribe?

27. Other Books You May Enjoy

A discussion of the CometD protocol and handling events externally

One of the key benefits of the platform event framework is the ability to consume platform events as a subscriber off-platform. One of the ways to consume events off-platform is to use the CometD protocol.

It is outside the scope of this book to discuss connecting using CometD in detail; however, you can use the streaming tool available through Salesforce Workbench at https://workbench.developerforce.com/streaming.php to subscribe to the channel and see events as an external service. To do this, select the Generic Subscriptions option, enter /event/eventName in the Subscription box, and then press the Subscribe button.

For example, in the following screenshot, I have subscribed to the UpdateAccount__e event channel. If you then publish an event using Execute Anonymous, you will see that the event has been consumed, as shown in the following screenshot: