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package server
import (
"fmt"
"net/http"
)
// handler implements the http.Handler interface
type handler struct {
method string
endpoint string
callback func(w http.ResponseWriter, r *http.Request) (int, string)
}
func (h handler) ServeHTTP(w http.ResponseWriter, r *http.Request) {
w.Header().Set("Content-Type", "text/plain; charset=utf-8")
w.Header().Set("Cache-Control", "no-cache")
if r.Method != h.method {
http.Error(w, "Invalid HTTP method, expected "+h.method, http.StatusMethodNotAllowed)
return
}
code, text := h.callback(w, r)
if code != http.StatusOK {
http.Error(w, text, code)
return
}
fmt.Fprintf(w, fmt.Sprintf("%s\n", text))
}
func (h handler) register(mux *http.ServeMux) {
mux.Handle("/"+h.endpoint, h)
}
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