Function.php_ajax

function my_enqueue_assets() {
 
    wp_enqueue_script( 'ajax-function',  get_stylesheet_directory_uri() . '/js/ajax-function.js', array(), '1.0.0', true );
 
    wp_localize_script( 'ajax-function', 'ajaxfunction', array(
    'ajaxurl' => admin_url( 'admin-ajax.php' )
    ));
}

my_enqueue_assets();

add_action('wp_ajax_get_chaplains', 'get_chaplains_callback');
add_action('wp_ajax_nopriv_get_chaplains', 'get_chaplains_callback');
 
function get_chaplains_callback(){
  echo json_encode($result);
  wp_die();
}