async function fetchAndUpdatePosts() {
  let posts; 
  
  try {
    posts = await fetchPosts();
  } catch {
    console.log('error in fetching posts');
  }
  
  if (!posts) {
    return;
  }
  
  try {
    await updatePosts();
  } catch {
    console.log('error in updating posts');
  }
}