http

var MultiPartUpload = func(conn ConnAuth, paramName, filename string, fileRef io.Reader, params map[string]string) (res *http.Response, err error) {
	var contentType string
	var rbody io.Reader

	if rbody, contentType, err = MultiPartBody(paramName, filename, fileRef, params); err == nil {
		var req *http.Request

		if req, err = http.NewRequest("POST", conn.Url, rbody); err == nil {

			if conn.Username != "" && conn.Password != "" {
				req.SetBasicAuth(conn.Username, conn.Password)
			}
			req.Header.Set("Content-Type", contentType)
			client := NewTransportClient()
			res, err = client.Do(req)
		}
	}
	return
}

var NewHttpGateway = func() HttpGateway {
	return &DefaultHttpGateway{}
}

var NewRoundTripper = func() http.RoundTripper {
	return &http.Transport{
		TLSClientConfig: &tls.Config{InsecureSkipVerify: true},
	}
}

var NewTransportClient = func() (client interface {
	Do(*http.Request) (*http.Response, error)
}) {
	tr := &http.Transport{
		TLSClientConfig: &tls.Config{InsecureSkipVerify: true},
	}
	client = &http.Client{Transport: tr}
	return
}