Now that we have talked about what the Drupal 8 configuration API is, what is it used for, how is it managed and stored, and what are some of the options for overriding it, it's time to talk about the API itself and how we can interact with it. In this section, we will focus only on the simple configuration as we will talk more about configuration entities when we cover all entities.
In Chapter 2, Creating Your First Module, we already became somewhat exposed to the configuration API in our SalutationConfigurationForm where we stored and read a simple configuration value. Now it's time to go a bit deeper to understand the API and look at some more examples of how we can use it.
The class that represents ...
