How can i retrieve a list of posts from my wordpress-rest api, with the sticke posts on top?

In the WordPress REST API, there's no built-in parameter to sort posts by sticky status directly. However, you can achieve your goal by fetching the sticky posts and non-sticky posts separately and then combining them in your application.

Fetch Sticky Posts: Use the endpoint to get only sticky posts:

wp-json/wp/v2/posts?sticky=true

Fetch Non-Sticky Posts: Use the endpoint to get non-sticky posts:

wp-json/wp/v2/posts?ignore_sticky_posts=1

Combine Results: After retrieving both sets of posts, combine the sticky posts with the non-sticky ones in your application logic.

async function fetchPosts() {
const stickyPostsResponse = await fetch('wp-json/wp/v2/posts?sticky=true');
const stickyPosts = await stickyPostsResponse.json();

const nonStickyPostsResponse = await fetch('wp-json/wp/v2/posts?ignore_sticky_posts=1');
const nonStickyPosts = await nonStickyPostsResponse.json();

const allPosts = [...stickyPosts, ...nonStickyPosts];
return allPosts;

}