Update app.py

app.py

@@ -104,20 +104,26 @@ class StoryCreationDTO(BaseModel):
 import httpx
 import tempfile
 
-async def download_file_from_url(url: str) -> str:
+async def download_file_from_url(url: str) -> str | None:
     """
     Downloads a file from a URL and returns the path to a temporary file.
+    Returns None if the download fails.
     """
-    async with httpx.AsyncClient() as client:
-        response = await client.get(url)
-        if response.status_code != 200:
-            raise RuntimeError(f"Failed to fetch file: {response.text}")
-
-    # Save to a temporary file
-    temp_file = tempfile.NamedTemporaryFile(delete=False, suffix=".wav")
-    temp_file.write(response.content)
-    temp_file.close()
-    return temp_file.name
+    try:
+        async with httpx.AsyncClient() as client:
+            response = await client.get(url, timeout=30.0)  # optional timeout
+            response.raise_for_status()  # raises for non-200 status codes
+
+        # Save to a temporary file
+        temp_file = tempfile.NamedTemporaryFile(delete=False, suffix=".wav")
+        temp_file.write(response.content)
+        temp_file.close()
+        return temp_file.name
+
+    except Exception as e:
+        # Catch any exception (network, timeout, invalid response)
+        print(f"Failed to download {url}: {e}")
+        return None
 
 #-----------------------------------------------------------