Add Rule AddPrefix

middlewares/addPrefix.go

@@ -0,0 +1,22 @@
+package middlewares
+
+import (
+	"net/http"
+)
+
+// AddPrefix is a middleware used to add prefix to an URL request
+type AddPrefix struct {
+	Handler http.Handler
+	Prefix  string
+}
+
+func (s *AddPrefix) ServeHTTP(w http.ResponseWriter, r *http.Request) {
+	r.URL.Path = s.Prefix + r.URL.Path
+	r.RequestURI = r.URL.RequestURI()
+	s.Handler.ServeHTTP(w, r)
+}
+
+// SetHandler sets handler
+func (s *AddPrefix) SetHandler(Handler http.Handler) {
+	s.Handler = Handler
+}