After indicates that the middleware should be used after the base endpoint handler.

Before indicates that the middleware should be used before the base endpoint handler.

AdditionalMiddleware holds the data needed for adding a middleware to an API endpoint.

EndpointHandlerData holds the items needed for creating a new gin HTTP endpoint.

GenericAPIResponse defines the structure of all responses on API endpoints.

FacadeHandler defines all the methods that a facade should implement.

GroupHandler defines the actions needed to be performed by a gin API group.

HttpServerCloser defines the basic actions of starting and closing that a web server should be able to do.

MiddlewarePosition is the type that specifies the position of a middleware relative to the base endpoint handler.