Apex Developer Guide

Apex Developer Guide
Release Notes
Getting Started with Apex
Writing Apex
Data Types and Variables
Control Flow Statements
Classes, Objects, and Interfaces
Classes
Interfaces
Keywords
Annotations
AuraEnabled Annotation
BeforeClass Annotation (Developer Preview)
Deprecated Annotation
Future Annotation
IntegrationTest Annotation (Developer Preview)
InvocableMethod Annotation
InvocableVariable Annotation
IsTest Annotation
JsonAccess Annotation
NamespaceAccessible Annotation
ReadOnly Annotation
RemoteAction Annotation
SuppressWarnings Annotation
TestSetup Annotation
TearDown Annotation (Developer Preview)
TestVisible Annotation
Apex REST Annotations
RestResource Annotation
HttpDelete Annotation
HttpGet Annotation
HttpPatch Annotation
HttpPost Annotation
HttpPut Annotation
Classes and Casting
Differences Between Apex Classes and Java Classes
Class Definition Creation
Namespace Prefix
Apex Code Versions
Lists of Custom Types and Sorting
Using Custom Types in Map Keys and Sets
Working with Data in Apex
Document Your Apex Code
Running Apex
Debugging, Testing, and Deploying Apex
Apex Reference
Appendices
PDF

Note: This release is in preview. Features described here don’t become generally available until the latest general availability date that Salesforce announces for this release. Before then, and where features are noted as beta, pilot, or developer preview, we can’t guarantee general availability within any particular time frame or at all. Make your purchase decisions only on the basis of generally available products and features.

HttpGet Annotation

The @HttpGet annotation is used at the method level and enables you to expose an Apex method as a REST resource. This method is called when an HTTP GET request is sent, and returns the specified resource.

These are some considerations when using this annotation:
  • To use this annotation, your Apex method must be defined as global static.
  • Methods annotated with @HttpGet are also called if the HTTP request uses the HEAD request method.