blog/internal/responses/responses.go

42 lines
1.2 KiB
Go

package responses
import (
"fmt"
"net/http"
"github.com/kirsle/blog/internal/sessions"
)
// Error handlers to be filled in by the blog app.
var (
NotFound func(http.ResponseWriter, *http.Request, string)
Forbidden func(http.ResponseWriter, *http.Request, string)
BadRequest func(http.ResponseWriter, *http.Request, string)
Error func(http.ResponseWriter, *http.Request, string)
)
// Flash adds a flash message to the user's session.
func Flash(w http.ResponseWriter, r *http.Request, message string, args ...interface{}) {
session := sessions.Get(r)
session.AddFlash(fmt.Sprintf(message, args...))
session.Save(r, w)
}
// FlashAndRedirect flashes and redirects in one go.
func FlashAndRedirect(w http.ResponseWriter, r *http.Request, location, message string, args ...interface{}) {
Flash(w, r, message, args...)
Redirect(w, location)
}
// FlashAndReload flashes and sends a redirect to the same path.
func FlashAndReload(w http.ResponseWriter, r *http.Request, message string, args ...interface{}) {
Flash(w, r, message, args...)
Redirect(w, r.URL.Path)
}
// Redirect sends an HTTP redirect response.
func Redirect(w http.ResponseWriter, location string) {
w.Header().Set("Location", location)
w.WriteHeader(http.StatusFound)
}