Update app.py

app.py

@@ -1,14 +1,16 @@
-import os, time, requests, threading, io
+from gevent import monkey
+monkey.patch_all()  # THIS MUST BE LINE 1, BEFORE ANY OTHER IMPORTS
+
+import os
+import time
+import requests
+import threading
+import io
 from flask import Flask, render_template, request, session, send_from_directory, jsonify
 from flask_socketio import SocketIO, emit
 
-# We are switching to gevent for better stability in 2026
-from gevent import monkey
-monkey.patch_all()
-
 app = Flask(__name__)
 app.config['SECRET_KEY'] = 'suno_modern_2026'
-# Using gevent as the engine
 socketio = SocketIO(app, cors_allowed_origins="*", async_mode='gevent')
 
 MUSIC_FOLDER = 'saved_music'
@@ -33,6 +35,7 @@ def callback():
         filename = f"{task_id}.mp3"
         filepath = os.path.join(MUSIC_FOLDER, filename)
         try:
+            # Server-side download
             r = requests.get(audio_url, timeout=30)
             with open(filepath, 'wb') as f:
                 f.write(r.content)
@@ -65,8 +68,6 @@ def handle_gen(payload):
         return
 
     headers = {"Authorization": f"Bearer {token}", "Content-Type": "application/json"}
-    
-    # Fix potential nulls
     payload['instrumental'] = bool(payload.get('instrumental'))
     payload['callBackUrl'] = request.host_url + "callback"
     
@@ -87,4 +88,5 @@ def handle_gen(payload):
         emit('status', {'msg': f'❌ Connection Error: {str(e)}'})
 
 if __name__ == '__main__':
-    socketio.run(app, host="0.0.0.0")
+    port = int(os.environ.get("PORT", 5000))
+    socketio.run(app, host="0.0.0.0", port=port)