diff --git a/README.md b/README.md
index b48ba08..5b4e6ef 100644
--- a/README.md
+++ b/README.md
@@ -24,4 +24,9 @@ ping cmd : 0111  0100  00   00    6400
 
 read_reg : 
 
+```
+
+```
+第三方库说明:
+https://iflytop1.feishu.cn/wiki/wikcnDuCFRGDunHGzns8gRV4Ahh
 ```
\ No newline at end of file
diff --git a/src/extapi_service.cpp b/src/extapi_service.cpp
index d80d9cf..0ba3a4b 100644
--- a/src/extapi_service.cpp
+++ b/src/extapi_service.cpp
@@ -58,11 +58,14 @@ void ExtAPIService::initCanPassthroughServer() {
    */
   m_canPassthroughServer.reset(new WebSocketServer(19005, "0.0.0.0"));
   m_canPassthroughServer->setOnConnectionCallback([this](weak_ptr<WebSocket> webSocket, shared_ptr<ConnectionState> connectionState) {
+    logger->info("url: {}", webSocket.lock()->getUrl());
+
     logger->info("m_canPassthroughServer on connect remote ip: {}", connectionState->getRemoteIp());
     auto ws = webSocket.lock();
     if (!ws) return;
 
     ws->setOnMessageCallback([this, webSocket](const ix::WebSocketMessagePtr &msg) {  //
+      logger->info("m_canPassthroughServer on message {}", webSocket.lock()->getUrl());
       try {
         if (msg->type == ix::WebSocketMessageType::Message) {
           logger->info("websocket-ch -> {}({})", msg->str, msg->wireSize);
@@ -79,6 +82,12 @@ void ExtAPIService::initCanPassthroughServer() {
     });
   });
 
+  m_canPassthroughServer->setOnClientMessageCallback([this](std::shared_ptr<ConnectionState>, WebSocket &, const WebSocketMessagePtr &) {
+
+
+    
+  });
+
   m_zcanreceiverhost->registerListener([this](uint8_t fromboardid, uint8_t *packet, size_t len) {
     string hexStr  = StringUtils().bytesToString((uint8_t *)packet, len);
     auto   clients = m_canPassthroughServer->getClients();