Hello, Xiaozhi.

main/WebSocketClient.h

@@ -0,0 +1,40 @@
+#ifndef _WEBSOCKET_CLIENT_H_
+#define _WEBSOCKET_CLIENT_H_
+
+#include <functional>
+#include <string>
+#include "esp_websocket_client.h"
+#include "freertos/event_groups.h"
+
+#define WEBSOCKET_CONNECTED_BIT BIT0
+#define WEBSOCKET_DISCONNECTED_BIT BIT1
+#define WEBSOCKET_ERROR_BIT BIT2
+
+class WebSocketClient {
+public:
+    WebSocketClient(bool auto_reconnect = false);
+    ~WebSocketClient();
+
+    void SetHeader(const char* key, const char* value);
+    bool IsConnected() const;
+    bool Connect(const char* uri);
+    void Send(const std::string& data);
+    void Send(const char* data, size_t len, bool binary = false);
+
+    void OnConnected(std::function<void()> callback);
+    void OnDisconnected(std::function<void()> callback);
+    void OnData(std::function<void(const char*, size_t, bool binary)> callback);
+    void OnError(std::function<void(int)> callback);
+    void OnClosed(std::function<void()> callback);
+
+private:
+    esp_websocket_client_handle_t client_ = NULL;
+    EventGroupHandle_t event_group_;
+    std::function<void(const char*, size_t, bool binary)> on_data_;
+    std::function<void(int)> on_error_;
+    std::function<void()> on_closed_;
+    std::function<void()> on_connected_;
+    std::function<void()> on_disconnected_;
+};
+
+#endif // _WEBSOCKET_CLIENT_H_