This is a libary that handles content negotiation in web applications written in Go.
func getUser(w http.ResponseWriter, req *http.Request) {
user := &User{"Joe","Bloggs"}
if err := negotiator.Negotiate(w, req, user); err != nil {
http.Error(w, err.Error(), http.StatusInternalServerError)
}
}
To add your own negotiator, for example you want to write a PDF with your model, do the following: