Upload through frontend

I want this feature as well.

I think this code present in function set_thumbnail will be helpful, so I’ll try implementing this, but it would be great if you provide a public function to do this.

if ($thumbnail_id && get_post($thumbnail_id)) {
	$thumbnail_html = wp_get_attachment_image($thumbnail_id, 'thumbnail');
	if (!empty($thumbnail_html)) {
		$this->set_meta($post_ID, $this->post_type, $this->id, $thumbnail_id);
		die($this->post_thumbnail_html($thumbnail_id));
	}
}