Moodle 3.x Developer's Guide

Types of APIs

For a complete list of Moodle's core internal APIs, take a look at https://docs.moodle.org/dev/Core_APIs. The first set of APIs are listed as General APIs. They are the interfaces upon which most plugins are built, for example, the Data Manipulation API for reading and writing to the Moodle database or the Form API that displays web forms and handles their form data. In the next section, we will create a simple plugin that overrides (in the object-oriented sense) and calls on the String API to change the way language strings are displayed in Moodle's user interface.

The "Other General APIs", listed next, are the ones that are still fundamental and likely to be used in any type of plugin but, that said, are much less likely to ...