Add New() func & Update() method to internal/server/user/mux/swappableMux

Co-authored-by: Roberto Abdelkader Martínez Pérez <robertomartinezp@gmail.com>

internal/server/user/mux/mux.go

@@ -4,6 +4,7 @@ import (
 	"net/http"
 	"sync"
 
+	"github.com/BBVA/kapow/internal/server/model"
 	"github.com/gorilla/mux"
 )
 
@@ -12,6 +13,12 @@ type swappableMux struct {
 	root *mux.Router
 }
 
+func New() *swappableMux {
+	return &swappableMux{
+		root: mux.NewRouter(),
+	}
+}
+
 func (sm *swappableMux) get() *mux.Router {
 	sm.m.RLock()
 	defer sm.m.RUnlock()
@@ -28,3 +35,7 @@ func (sm *swappableMux) set(mux *mux.Router) {
 func (sm *swappableMux) ServeHTTP(w http.ResponseWriter, r *http.Request) {
 	sm.get().ServeHTTP(w, r)
 }
+
+func (sm *swappableMux) Update(rs []model.Route) {
+	sm.set(gorillize(rs, handlerBuilder))
+}