Wordpress Insert post create tne meta key and meta value - wordpress

Question

I am creating wp_insert_post to create post from json, while creating post i need to create meta values i have tried both add_post_meta and update_post_meta no results Can anybody help
foreach ( $response->data as $single_data ) {
$post_title = $single_data->name;
$video_id = $single_data->uri;
$thumnbnail_url = $single_data->pictures->sizes[4]->link;
if (!post_exists($post_title)) { // Determine if a post exists based on title, content, and date
$post_id = wp_insert_post(array(
'post_type' => 'vimeo_videos',
'post_title' => $post_title,
'post_status' => 'publish',
));
}
$newPostID = wp_insert_post($post_id);
global $post;
add_post_meta( $post->ID, 'vimeo_video_thumnbnail_url_key', $thumnbnail_url, true );
update_post_meta( $newPostID, 'video_url_id', $video_id );

Answer 1

You're using wp_insert_post twice which does not make sense. The first wp_insert_post is correct and will return the $post_id of the created post upon success. However, your
$newPostID = wp_insert_post($post_id);
is totally wrong and will always store 0 as a result in $newPostID, regardless of whether the post existed beforehand or not since $post_id will never contain a valid post array. What you want is to get the ID of the existing post (which post_exists already returns if successful). Change your code like so:
$existingPostID = post_exists($post_title);
if (!$existingPostID) {
$existingPostID = wp_insert_post(array(
'post_type' => 'vimeo_videos',
'post_title' => $post_title,
'post_status' => 'publish',
));
}
if ($existingPostID) {
update_post_meta( $existingPostID, 'video_url_id', $video_id );
}

Answer 2

For insert new post used this syntax:
add_post_meta( int $post_id, string $meta_key, mixed $meta_value, bool $unique = false )