PostMessage api uses string message

windows/ReactNativeWebView/ReactWebView.cpp

         if (m_messagingEnabled) {
           auto tag = this->GetValue(winrt::FrameworkElement::TagProperty()).as<winrt::IPropertyValue>().GetInt64();
           m_webBridge = WebViewBridge::WebBridge(tag);
-          m_message_token = m_webBridge.MessagePostedEvent([this](const int32_t& message) {
+          m_message_token = m_webBridge.MessagePostedEvent([this](hstring const& message) {
             this->OnMessagePosted(message);
           });
-          webView.AddWebAllowedObject(L"__RN_WEBVIEW_JS_BRIDGE", m_webBridge);
+          webView.AddWebAllowedObject(L"__REACT_WEB_VIEW_BRIDGE", m_webBridge);
         }
     }
 
-    void ReactWebView::OnMessagePosted(const int32_t& message)
+    void ReactWebView::OnMessagePosted(hstring const& message)
     {
       OutputDebugStringW(L"> ReactWebView:OnMessagePosted received \n");
-
-      // TODO: send to RN
-      // PostMessage(winrt::hstring(args.Value()));
+      PostMessage(message);
     }
 
     void ReactWebView::OnNavigationCompleted(winrt::WebView const& webView, winrt::WebViewNavigationCompletedEventArgs const& /*args*/) {
 
         winrt::hstring windowAlert = L"window.alert = function (msg) {window.external.notify(`{\"type\":\"__alert\",\"message\":\"${msg}\"}`)};";
         if (m_messagingEnabled) {
-          winrt::hstring postMessage = L"window.ReactNativeWebView = {postMessage: function (data) {__RN_WEBVIEW_JS_BRIDGE.postMessage(String(data))}};";
+          winrt::hstring postMessage = L"window.ReactNativeWebView = {postMessage: function (data) {__REACT_WEB_VIEW_BRIDGE.postMessage(String(data))}};";
           webView.InvokeScriptAsync(L"eval", { windowAlert + postMessage });
         }
         else {

windows/ReactNativeWebView/ReactWebView.h

         void OnNavigationCompleted(winrt::Windows::UI::Xaml::Controls::WebView const& sender, winrt::Windows::UI::Xaml::Controls::WebViewNavigationCompletedEventArgs const& args);
         void OnNavigationFailed(winrt::Windows::Foundation::IInspectable const& sender, winrt::Windows::UI::Xaml::Controls::WebViewNavigationFailedEventArgs const& args);
         void OnScriptNotify(winrt::Windows::Foundation::IInspectable const& sender, winrt::Windows::UI::Xaml::Controls::NotifyEventArgs const& args);
-        void OnMessagePosted(const int32_t& message);
+        void OnMessagePosted(hstring const& message);
     };
 } // namespace winrt::ReactNativeWebView::implementation
 

windows/WebViewBridge/WebBridge.cpp

   m_dispatcher = Windows::UI::Core::CoreWindow::GetForCurrentThread()->Dispatcher;
 }
 
-void WebBridge::PostMessage(int message) {
+void WebBridge::PostMessage(Platform::String^ message) {
   m_dispatcher->RunAsync(
     CoreDispatcherPriority::Normal,
     ref new DispatchedHandler([this, message]

windows/WebViewBridge/WebBridge.h

 
 namespace WebViewBridge
 {
-  public delegate void MessagePosted(int message);
+  public delegate void MessagePosted(Platform::String^ message);
 
   [Windows::Foundation::Metadata::AllowForWebAttribute]
   public ref class WebBridge sealed
     {
     public:
       WebBridge(int64 tag);
-      void PostMessage(int message);
+      void PostMessage(Platform::String^ message);
       event MessagePosted^ MessagePostedEvent;
     private:
       Windows::UI::Core::CoreDispatcher^ m_dispatcher;