Create app.py

app.py

@@ -0,0 +1,24 @@
+from flask import Flask, render_template
+from flask_socketio import SocketIO
+from flask_socketio import emit
+from flask_cors import CORS
+
+app = Flask(__name__)
+
+socketio = SocketIO(app, cors_allowed_origins="*")
+
+CORS(app)
+
+
+@app.route('/')
+def index():
+    return render_template('index.html')
+
+
+@socketio.on('message')
+def handle_message(data):
+    emit('message', data, broadcast=True)
+
+
+if __name__ == '__main__':
+    socketio.run(app, host='0.0.0.0', debug=True, allow_unsafe_werkzeug=True)