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Force.com Enterprise Architecture

You're reading from   Force.com Enterprise Architecture Architect and deliver packaged Force.com applications that cater to enterprise business needs

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Product type Paperback
Published in Mar 2017
Publisher Packt
ISBN-13 9781786463685
Length 504 pages
Edition 2nd Edition
Languages
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Author (1):
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Andrew Fawcett Andrew Fawcett
Author Profile Icon Andrew Fawcett
Andrew Fawcett
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Toc

Table of Contents (15) Chapters Close

Preface 1. Building, Publishing, and Supporting Your Application FREE CHAPTER 2. Leveraging Platform Features 3. Application Storage 4. Apex Execution and Separation of Concerns 5. Application Service Layer 6. Application Domain Layer 7. Application Selector Layer 8. User Interface 9. Lightning 10. Providing Integration and Extensibility 11. Asynchronous Processing and Big Data Volumes 12. Unit Testing 13. Source Control and Continuous Integration Index

Client server communication


Fundamentally, any communication between the user's chosen device (client) and the data and logic available on the Salesforce server occurs using the HTTP protocol. As a Force.com developer, you rarely get involved with the low-level aspects of forming the correct HTTP POST or HTTP GET request to the server and parsing the responses.

For example, the Visualforce apex:commandButton and apex:actionFunction (AJAX) components do an excellent job of handling this for you, resulting in your Apex code being called with very little effort on your behalf apart from simply using these components. Salesforce also takes care of the security aspects for you, ensuring that the user is logged in, and has a valid session to make the request to the server. For Lightning Components, there are no direct equivalent components through the component markup. Instead, the $A.enqueueAction JavaScript method can be called from a component's client-side controller method to access the Apex...

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