package main import ( "fmt" "net/http" ) func (app *application) logError(r *http.Request, err error) { app.logger.PrintError(err, map[string]string{ "request_method": r.Method, "request_url": r.URL.String(), }) } func (app *application) errorResponse(w http.ResponseWriter, r *http.Request, status int, message any) { env := envelope{"error": message} err := app.writeJSON(w, status, env, nil) if err != nil { app.logError(r, err) w.WriteHeader(500) } } func (app *application) serverErrorResponse(w http.ResponseWriter, r *http.Request, err error) { app.logError(r, err) message := "the server encountered a problem and could not process your request" app.errorResponse(w, r, http.StatusInternalServerError, message) } func (app *application) notFoundResponse(w http.ResponseWriter, r *http.Request) { message := "the requested resource could not be found" app.errorResponse(w, r, http.StatusNotFound, message) } func (app *application) methodNotAllowResponse(w http.ResponseWriter, r *http.Request) { message := fmt.Sprintf("the %s method is not supported for this resource", r.Method) app.errorResponse(w, r, http.StatusMethodNotAllowed, message) } func (app *application) badRequestResponse(w http.ResponseWriter, r *http.Request, err error) { app.errorResponse(w, r, http.StatusBadRequest, err.Error()) } func (app *application) failedValidationResponse(w http.ResponseWriter, r *http.Request, errors map[string]string) { app.errorResponse(w, r, http.StatusUnprocessableEntity, errors) } func (app *application) editConflictResponse(w http.ResponseWriter, r *http.Request) { message := "unable to update the record duto to an edit conflict, please try again" app.errorResponse(w, r, http.StatusConflict, message) } func (app *application) rateLimitExceededResponse(w http.ResponseWriter, r *http.Request) { message := "rate limit exceeded" app.errorResponse(w, r, http.StatusTooManyRequests, message) } func (app *application) invalidCredentialsResponse(w http.ResponseWriter, r *http.Request) { message := "invalid authentication credentials" app.errorResponse(w, r, http.StatusUnauthorized, message) } func (app *application) invalidAuthenticationTokenResponse(w http.ResponseWriter, r *http.Request) { w.Header().Set("WWW-Authenticate", "Bearer") message := "invalid or missing authentication token" app.errorResponse(w, r, http.StatusUnauthorized, message) } func (app *application) authenticationRequiredResponse(w http.ResponseWriter, r *http.Request) { message := "you must be authenticated to access this resource" app.errorResponse(w, r, http.StatusUnauthorized, message) } func (app *application) inactiveAccountResponse(w http.ResponseWriter, r *http.Request) { message := "you do not have the necessary permissions to access this resource" app.errorResponse(w, r, http.StatusForbidden, message) } func (app *application) notPermittedResponse(w http.ResponseWriter, r *http.Request) { message := "your account does not have the necessary permissions to access this resource" app.errorResponse(w, r, http.StatusForbidden, message) }