The@RestResourceannotation exposes an Apex class as a RESTful web service. TheurlMappingparameter defines the endpoint's URL.
[Reference:Apex REST Services, Incorrect Options:, A:@RemoteActionis used for JavaScript remoting., C:@HttpInvocableis used for invocable methods, not REST services., D:@AuraEnabledis for enabling methods in Aura components or LWC, not REST services., , ]
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