patmigliaccio.com/resolving-nested-promises 4/4/19

resolving-nested-promises-8.js

  function resolveUsers(users) {
    return Promise.all(
      users.map(user => {
        return resolveComments(user)
      })
    );
  }

  async function resolveComments(user) {
    user.comments = await Promise.all(
      user.commentIds.map(commentId => {
        return comments.getCommentById(commentId)
      })
    );

    return user;
  }

  const activeUsers = await post.getActiveUsers();
  const resolvedUsers = await resolveUsers(activeUsers);