Documentation

Core interface for library provided configuration, basically consists of getting a Key and informing returning a maybe signaling the value and if it's present in that specific source

The way to index Sources, basically list of names that will be adapted to whatever the source needs

Collapse a key into a textual representation

Core type that the user of this library interact with, in the future it may contain more this besides a list of sources

The type for creating a source given a Config, some sources require a certain configuration to be initialized (for example: the redis source needs connection info to connect to the server)

Default defining instance

Here a Nothing means that the value didn't appear in the config, some instances never return a value since they have defaults that can never fail

Main typeclass for defining the way to get values from config, hiding the Text based nature of the Sources. updated using a config, so for example a Warp.Settings can get updated from a config, but that doesn't make much sense for something like an Int

You'd normally would never implement this typeclass, if you want to implement FromConfig you should implement that directly, and if you want to use DefaultConfig and FromConfig to implement FromConfig you should let the default Generics based implementation do it's thing

Purely Generics machinery, ignore...