Create websocket.dart

packages/spry/lib/websocket.dart

@@ -0,0 +1,29 @@
+library spry.websocket;
+
+import 'dart:io';
+
+import 'spry.dart';
+
+class WebSocketHandler {
+  Future<void> call(Context context) async {
+    final HttpRequest request = context[HttpRequest];
+
+    if (!WebSocketTransformer.isUpgradeRequest(request)) {
+      throw Exception('Not a WebSocket upgrade request');
+    }
+
+    final websocket = await WebSocketTransformer.upgrade(request);
+    websocket.listen((event) {
+      print(event);
+    });
+
+    await websocket.done;
+  }
+}
+
+final handler = WebSocketHandler();
+final spry = Spry();
+
+void main() async {
+  await spry.listen(handler, port: 3030);
+}