feat: support external api extensions (#852)

hub/route/external.go

@@ -0,0 +1,21 @@
+package route
+
+import "github.com/go-chi/chi/v5"
+
+type externalRouter func(r chi.Router)
+
+var externalRouters = make([]externalRouter, 0)
+
+func Register(route ...externalRouter) {
+	externalRouters = append(externalRouters, route...)
+}
+
+func addExternalRouters(r chi.Router) {
+	if len(externalRouters) == 0 {
+		return
+	}
+
+	for _, caller := range externalRouters {
+		caller(r)
+	}
+}

hub/route/server.go

@@ -93,6 +93,7 @@ func Start(addr string, tlsAddr string, secret string,
 		r.Mount("/dns", dnsRouter())
 		r.Mount("/restart", restartRouter())
 		r.Mount("/upgrade", upgradeRouter())
+		addExternalRouters(r)
 
 	})