This section covers the basics of Apex including exactly what Apex is, file / directory structure, the services container, and the basic flow. To continue, click on one of the below links:
A brief synopsis of exactly what Apex is, and what it aims to accomplish.
The basic flow of Apex requests including attribute based injection and HTTP controllers.
Accessible container with 19 PSR compliant and other items for easy attribute / constructor injection.
Contains various base system-wide configuration files.
Contains all items and services loaded into dependency injection container every request.