ported backend to python

src/server.py

@@ -0,0 +1,35 @@
+# server.py
+from flask import Flask
+from flask_cors import CORS
+from flask_socketio import SocketIO
+from routes.index import router as index_router
+from routes.answers import router as answers_router
+from routes.datasets import router as datasets_router
+
+import os
+
+app = Flask(__name__, static_folder='../public', static_url_path='/')
+CORS(app)
+
+# Register routes
+app.register_blueprint(index_router)        # serves '/' and '/api/hello'
+app.register_blueprint(answers_router)      # mounts at '/answers'
+app.register_blueprint(datasets_router)     # mounts at '/datasets'
+
+
+def init_socketio(app):
+    socketio = SocketIO(app, cors_allowed_origins='*')
+
+    @socketio.on('connect')
+    def _():
+        print('Websocket client connected')
+
+    return socketio
+
+
+# Init socketio
+socketio = init_socketio(app)
+
+if __name__ == '__main__':
+    port = int(os.getenv('PORT', 3000))
+    socketio.run(app, port=port)