adds ability to set an env in the app context

default_router.go

@@ -15,12 +15,17 @@ type DefaultRouter struct {
 	StaticRoutes []*StaticRoute
 
 	prefix string
+	env    string
 }
 
 func (r *DefaultRouter) Prefix(path string) {
 	r.prefix = path
 }
 
+func (r *DefaultRouter) SetEnv(env string) {
+	r.env = env
+}
+
 func (r *DefaultRouter) GET(path string, h Handler) {
 	r.addRoute(http.MethodGet, path, h)
 }