Update app.py

app.py

@@ -5,10 +5,12 @@ import logging
 import requests
 import subprocess
 from fastapi import FastAPI, Request, HTTPException
+from fastapi.responses import FileResponse
 from fastapi.staticfiles import StaticFiles
 import tempfile
 import os
 import uuid
+import gc  # Import the garbage collector module
 
 # Constants
 BASE_URL = 'https://tecuts-request.hf.space'
@@ -81,15 +83,23 @@ async def fetch_data_for_url(request: Request):
                 f.write(chunk)
     logging.info(f"FLAC file downloaded at {flac_file_path}")
 
-    # Convert FLAC to ALAC
+    # Convert FLAC to ALAC using a context manager to ensure proper cleanup
     alac_file_path = os.path.join(global_download_dir, f'{uuid.uuid4()}.m4a')
-    subprocess.run(['ffmpeg', '-i', flac_file_path, '-c:a', 'alac', alac_file_path], check=True)
+    with subprocess.Popen(['ffmpeg', '-i', flac_file_path, '-c:a', 'alac', alac_file_path], stdout=subprocess.PIPE, stderr=subprocess.PIPE) as process:
+        process.communicate()
     logging.info(f"Converted to ALAC: {alac_file_path}")
 
+    # Delete the FLAC file to free up space
+    os.remove(flac_file_path)
+    logging.info(f"Deleted FLAC file: {flac_file_path}")
+
     # Generate the file URL for ALAC
     alac_file_url = f'{BASE_URL}/file/{os.path.basename(alac_file_path)}'
     logging.info(f"Returning ALAC file URL: {alac_file_url}")
 
+    # Force garbage collection to clear memory
+    gc.collect()
+
     # Return the ALAC file URL to the client as JSON
     return {"url": alac_file_url}
 
@@ -101,5 +111,5 @@ app.mount("/file", StaticFiles(directory=global_download_dir), name="downloads")
 async def set_mime_type_middleware(request: Request, call_next):
     response = await call_next(request)
     if request.url.path.endswith(".m4a"):
-        response.headers["Content-Type"] = "audio/mp4"
+        response.headers["Content-Type"] = "audio/m4a"
     return response