authentication

type ClientInterface interface {
	Get(client HTTPClient, id string, key string, url string) (*http.Response, error)
	Post(client HTTPClient, id string, key string, url string, body io.Reader) (*http.Response, error)
}

type HTTPClient interface {
	Get(url string) (resp *http.Response, err error)
	Do(req *http.Request) (*http.Response, error)
}

type ServerInterface interface {
	Middleware(next http.HandlerFunc, credentialStore hawk.CredentialStore, hostPort string) http.HandlerFunc
}