EDD license in functions.php inside setup function.

edd_license_functions.php

<?php
/* Add theme settings. */
if ( is_admin() )
require_once( trailingslashit ( get_template_directory() ) . 'admin/functions-admin.php' );

  /* Set up Licence key for this theme. URL: https://easydigitaldownloads.com/docs/activating-license-keys-in-wp-plugins-and-themes */
 
// this is the URL our updater / license checker pings. This should be the URL of the site with EDD installed.
define( 'KULTALUSIKKA_SL_STORE_URL', 'http://localhost/foxnet-themes-shop' ); // add your own unique prefix to prevent conflicts

// the name of your product. This should match the download name in EDD exactly.
define( 'KULTALUSIKKA_SL_THEME_NAME', 'Kultalusikka' ); // add your own unique prefix to prevent conflicts

/* Define current version of Kultalusikka. Get it from parent theme style.css. */
$kultalusikka_theme = wp_get_theme( 'kultalusikka' );
if ( $kultalusikka_theme->exists() ) {
define( 'KULTALUSIKKA_VERSION', $kultalusikka_theme->Version ); // Get parent theme Kultalusikka version
}

if( !class_exists( 'EDD_SL_Theme_Updater' ) ) {
// load our custom theme updater
include( dirname( __FILE__ ) . '/includes/EDD_SL_Theme_Updater.php' );
}

// Get license key from database.
$kultalusikka_get_license = get_option( $prefix . '_theme_settings' ); // This is array.
$kultalusikka_license = $kultalusikka_get_license['kultalusikka_license_key'];

$edd_updater = new EDD_SL_Theme_Updater( array(
'remote_api_url' => KULTALUSIKKA_SL_STORE_URL, // our store URL that is running EDD
'version' => KULTALUSIKKA_VERSION, // the current theme version we are running
'license' => $kultalusikka_license, // the license key (used get_option above to retrieve from DB)
'item_name' => KULTALUSIKKA_SL_THEME_NAME,  // the name of this theme
'author'	=> 'Sami Keijonen'	// the author's name
)
);
?>