title: Wordpress API get all posts
body: <p>i am trying to get all posts ( only their link ) with wp-json. I have around 40 posts currently.</p>
  <p>this request works partially...it gives me around 8 posts back but not all.</p>
  <pre><code>/wp-json/wp/v2/posts?_fields=link
  </code></pre>
  <p>when I add all categories to the request I get every post</p>
  <pre><code>/wp-json/wp/v2/posts?_fields=link&amp;per_page=100&amp;page=1&amp;categories=1,2,3,6,7,8,21
  </code></pre>
  <p>this solution is not the best since I ll add categories in the future.</p>
  <p>what is wrong with my first request ??</p>
  <p>thank you</p>