s3-uploads-endpoint.php

<?php
/*
Plugin Name:  S3 Endpoint Uploads
Plugin URI:   https://www.newiteration.com/
Description:  Add S3_UPLOADS_ENDPOINT_URL to S3-Uploads
Version:      1.0.0
Author:       New Iteration
Author URI:   https://www.newiteration.com/
License:      MIT License
*/

add_filter('s3_uploads_s3_client_params', 's3_uploads_s3_client_params');
function s3_uploads_s3_client_params($params)
{
    if (env('S3_UPLOADS_ENDPOINT_URL')) {
        $params['endpoint'] = env('S3_UPLOADS_ENDPOINT_URL');
    }

    return $params;
}