no endpoint required for aws s3 fix (#9)

src/s3_operations/download.py

@@ -4,29 +4,30 @@
 
 config = load_config()
 
+def create_s3_client():
+    # Create the S3 client with or without the custom endpoint URL
+    s3_client_args = {
+        "aws_access_key_id": config.s3_rawfiles_access_key_id,
+        "aws_secret_access_key": config.s3_rawfiles_secret_access_key,
+    }
+
+    # Include endpoint_url only if it is provided
+    if config.s3_rawfiles_endpoint:
+        s3_client_args["endpoint_url"] = config.s3_rawfiles_endpoint
+
+    return boto3.client("s3", **s3_client_args)
 
 def download_from_s3(file_name, local_path):
-    s3_client = boto3.client(
-        "s3",
-        aws_access_key_id=config.s3_rawfiles_access_key_id,
-        aws_secret_access_key=config.s3_rawfiles_secret_access_key,
-        endpoint_url=config.s3_rawfiles_endpoint,
-    )
+    s3_client = create_s3_client()
     try:
         s3_client.download_file(config.s3_rawfiles_bucket, file_name, local_path)
         logger.info(f"Downloaded {file_name} to {local_path}")
     except Exception as e:
         logger.error(f"Failed to download {file_name} from S3: {str(e)}")
         raise
 
-
 def delete_file_from_s3(file_name):
-    s3_client = boto3.client(
-        "s3",
-        aws_access_key_id=config.s3_rawfiles_access_key_id,
-        aws_secret_access_key=config.s3_rawfiles_secret_access_key,
-        endpoint_url=config.s3_rawfiles_endpoint,
-    )
+    s3_client = create_s3_client()
     try:
         s3_client.delete_object(Bucket=config.s3_rawfiles_bucket, Key=file_name)
         logger.info(