Sort results

https://github.com/parisholley/wordpress-fantastic-elasticsearch/wiki/How-do-I-implement-sorting%3F

Thanks sir,
I have a wordpress video site and want to short by views and likes.
In elastcicsearch content indexing likes and views appears as Custom Fields.How i can use these variables to short result?

Where i need to paste your code:
How do I implement sorting?
is your code starting with
<?php
and end with
?>