The pipeline builder is a class that can be used by the application developer to construct an OWIN pipeline where all dependencies between middleware have been satisfied.

The pipeline builder is also responsible for constructing a routing graph and assigning middleware to segments of that graph such that only middleware that is required on a route is executed on that route.

The pipeline builder implements the IBuilder interface. This interface is registered with IoC.Modules so that the application author can easily obtain one from their IoC container of choice.