Post.js

import React from 'react';
import PropTypes from 'prop-types';
import AsyncPostHoC from '...';

const PostView = (props) => (
  <div>
    <p>{props.title}</p>
    <p>{props.body}</p>
  </div>
);

PostView.propTypes = {
  title: PropTypes.string,
  body: PropTypes.string,
}

const Post = (props) => (
  <AsyncPostHoC postId={props.postId}>
    <PostView {...props} />
  </AsyncPostHoC>
);

Post.propTypes = {
  postId: PropTypes.string.isRequired,
}

export default Post;