Sending pre-signed url in the response

server.py

@@ -32,10 +32,17 @@ def upload_to_s3(processed_data, userId):
     # Upload the buffer to AWS S3
     s3.upload_fileobj(buffer, BUCKET_NAME, s3_key, ExtraArgs={'ContentType': 'audio/wav'})
 
-    # Generate the URL of the uploaded file
-    file_url = f'https://{BUCKET_NAME}.s3.amazonaws.com/{s3_key}'
+    # Generate a pre-signed URL for the uploaded file
+    presigned_url = s3.generate_presigned_url(
+        'getObject',
+        Params={
+            'Bucket': BUCKET_NAME,
+            'Key': s3_key
+        },
+        ExpiresIn=3600  # URL expiration time in seconds (1 hour)
+    )
 
-    return file_url
+    return presigned_url
 
 def int16_to_float32(samples):
     return samples.astype(np.float32) / 32768.0