short_mapping.go

type Model struct {
	value []byte
}

func (m *Model) UnmarshalJSON(v []byte) error {
	m.value = v
	return nil
}

func Map(body io.Reader, v json.Unmarshaler) {
	data, _ := ioutil.ReadAll(body)
	v.UnmarshalJSON(data)
}

type Controller struct {
	mapper func(*http.Request, json.Unmarshaler) error
	newModelFunc func() Model
}

func (c *Controller) Bla(r *http.Request) {
	model := c.newModelFunc()
	_ = c.mapper(r, &model)


}