Nashboard/api.go

53 lines
1.2 KiB
Go

package main
import (
"encoding/json"
"net/http"
)
type ApiError struct {
Err string
Status int
}
func (e ApiError) Error() string {
return e.Err
}
type apiFunc func(http.ResponseWriter, *http.Request) error
func MakeHTTPHandler(f apiFunc) http.HandlerFunc {
return func(w http.ResponseWriter, r *http.Request) {
if err := f(w, r); err != nil {
if e, ok := err.(ApiError); ok {
WriteJSON(w, e.Status, e)
return
}
WriteJSON(w, 500, ApiError{Err: err.Error(), Status: http.StatusInternalServerError})
return
}
}
}
func StatusAndContent(w http.ResponseWriter, status int, contentType string) {
w.Header().Add("Content-Type", contentType)
w.WriteHeader(status)
}
func WriteJSON(w http.ResponseWriter, status int, v any) error {
StatusAndContent(w, status, "application/json")
return json.NewEncoder(w).Encode(v)
}
func WritePlain(w http.ResponseWriter, status int, text string) error {
StatusAndContent(w, status, "text/plain")
_, err := w.Write([]byte(text))
return err
}
func WriteBlob(w http.ResponseWriter, status int, contentType string, blob []byte) error {
StatusAndContent(w, status, contentType)
_, err := w.Write(blob)
return err
}