Update app.py

app.py

@@ -1,24 +1,32 @@
 import time
 import requests
 import os
+import threading
+from flask import Flask
 
-def heartbeat():
+# 1. Create a tiny web server to satisfy Hugging Face
+app = Flask(__name__)
+
+@app.route('/')
+def home():
+    return "Heartbeat is active!"
+
+def heartbeat_loop():
     print("Heartbeat service started...")
     while True:
-        # This looks for the URL you will provide in the "Settings"
         url = os.environ.get("TARGET_URL")
-
         if url:
             try:
                 res = requests.get(url, timeout=10)
                 print(f"[{time.ctime()}] Pinging Colab: {res.status_code}")
             except Exception as e:
-                print(f"[{time.ctime()}] Waiting for Colab to be online... {e}")
-        else:
-            print(f"[{time.ctime()}] No TARGET_URL found in Settings > Secrets.")
-
-        time.sleep(60) # Pings every 60 seconds
+                print(f"[{time.ctime()}] Waiting for Colab... {e}")
+        time.sleep(60)
 
 if __name__ == "__main__":
-    heartbeat()
-    
+    # 2. Run the heartbeat in the background
+    threading.Thread(target=heartbeat_loop, daemon=True).start()
+    
+    # 3. Run the web server on port 7860 (HF default)
+    # The host must be 0.0.0.0
+    app.run(host='0.0.0.0', port=7860)