Create custom wordpress popular post feed using query. Add following code in your functions.php
function wpb_set_post_views($postID) {
$count_key = 'wpb_post_views_count';
$count = get_post_meta($postID, $count_key, true);
if($count==''){
$count = 0;
delete_post_meta($postID, $count_key);
add_post_meta($postID, $count_key, '0');
}else{
$count++;
update_post_meta($postID, $count_key, $count);
}
}
//To keep the count accurate, lets get rid of prefetching
remove_action( 'wp_head', 'adjacent_posts_rel_link_wp_head', 10, 0);
function wpb_track_post_views ($post_id) {
if ( !is_single() ) return;
if ( empty ( $post_id) ) {
global $post;
$post_id = $post->ID;
}
wpb_set_post_views($post_id);
}
add_action( 'wp_head', 'wpb_track_post_views');
function the_new_popular_post_feed() {
add_feed('popularpost', 'a_new_feed');
}
add_action('init', 'the_new_popular_post_feed');
function a_new_feed() {
add_filter('pre_option_rss_use_excerpt', '__return_zero');
load_template( TEMPLATEPATH . '/feeds/popular-feed-template.php' );
}
Create file feeds/popular-feed-template.php. You can get this file in my git.
Once you finished then you can access the url : www.yourdomain.com/feed/popularpost