save_post hook is not called when post is saved

In wordpress whenever new blog post is created all post details need to be send to third party api. I’m using save_post hook for this but not sure whether it’s getting called or not
This is what i’ve done so far

     add_action( 'save_post', 'new_blog_details_send');
    function new_blog_details_send( $post_id ) {

  //getting blog post details//
        $blog_title = get_the_title( $post_id );
        $blog_link = get_permalink( $post_id ); 
        $blog_text = get_post_field('post_content', $post_id);

        ///Sending data to portal////
        $post_url = 'http://example.com/blog_update';
        $body = array(
                'blog_title' => $blog_title,
                'blog_link' => $blog_link,
                'blog_text' => $blog_text
        );

        //error_log($body);

        $request = new WP_Http();
        $response = $request->post( $post_url, array( 'body' => $body ) );


    }

Not sure how to log or debug in wordpress.Any help would be appericiated Thanks in advance

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