Social Auth Facebook module depends on The League OAuth2 Facebook library and uses Composer to download it. Composer can automatically download the correct version of the library for you. Overview of installation steps Step 1: Create a project and get credentials from https://developers.facebook.com/apps/. Step 2: Download Social Auth Facebook and The League OAuth2 Facebook library using Composer. Step 3: Enable and configure Social Auth Facebook module. Step 1: Create a project Create a new project on https://developers.facebook.com/apps/.