GeodooBlog: pagination tactics

Hey there! How are you? I hope well!

Ok, here is the next thing I am searching for: how on Earth should I find out how many posts there are in the response I get which is already paginated at 10 posts every time?

WordPress did a fine job passing through the total number of posts and pages in the headers of the response! Just look out for this:

headers: 
{ map: 
  { 
    allow: [ 'GET' ],
    'x-wp-total': [ '45' ],
    'x-wp-totalpages': [ '5' ],
... 
    'access-control-expose-headers': [ 'X-WP-Total, X-WP-TotalPages' ],
    link: [ '<http://geodoo.work/wp-json/wp/v2/posts?page=2>; rel="next"' ],
...

Nice and easy, huh? I have a total of 45 posts divided in 5 pages so far! Nice!

The only thing I have to do is find a way to pass those two variables over to the MainScreen component! The variables values are these (reading from the res parameter in the HTTP call):

res.headers.map['x-wp-total'][0]
res.headers.map['x-wp-totalpages'][0]

After I find them I have to find the proper way to make the calls for the next pages of the posts!

NOTE: The official docs page is this where I first saw the two variables:

WP REST API Pagination