Post retrieval on my index page

export default function Index(props) {
  return (
    <div>
      <h1>Welcome to a blog!</h1>
      {props.posts.map(
        ({ _id, title = '', slug = '', _updatedAt = '' }) =>
          slug && (
            <li key={_id}>
              <Link href="/blog/post/[slug]" as={`/blog/post/${slug.current}`}>
                <a>{title}</a>
              </Link>{' '}
              ({new Date(_updatedAt).toDateString()})
            </li>
          )
      )}
    </div>
  );
}

export async function getStaticProps() {
  const posts = await sanity.fetch(`*[_type == "post"]|order(publishedAt desc)`);

  console.log(posts);

  console.log(typeof posts);

  return {
    props: {
      posts: posts
    }
  };
}