Function async_get_file_size

pub async fn async_get_file_size(file_path: &str) -> Option<u64>

Retrieves the size of a file at the specified file_path in bytes.

Parameters

• file_path: The path to the file whose size is to be fetched.

Returns

• Option<u64>:
  • Some(size): The size of the file in bytes if the file exists and its metadata can be accessed.
  • None: If the file doesn’t exist, or there is an error retrieving the file’s metadata.

Errors

• If the file at file_path doesn’t exist, or there is an issue accessing its metadata, the function will return None to indicate the failure.

Notes

• The function uses metadata to retrieve the file’s metadata and specifically its size (metadata.len()). If the file metadata is not accessible or the file does not exist, the function will return None. This is useful when you want to safely handle cases where the file might not be present or readable.