Full-Stack React Projects - Second Edition

The Uncomment API

We will implement an uncomment API at the following PUT route.

mern-social/server/routes/post.routes.js:

router.route('/api/posts/uncomment')    .put(authCtrl.requireSignin, postCtrl.uncomment)

The uncomment controller method will find the relevant post by ID and pull the comment with the deleted comment's ID from the comments array in the post, as implemented in the following code.

mern-social/server/controllers/post.controller.js:

const uncomment = async (req, res) => {  let comment = req.body.comment  try{    let result = await Post.findByIdAndUpdate(req.body.postId,                                   {$pull: {comments: {_id: comment._id}}},                                    {new: true})                          .populate('comments.postedBy', '_id name')                          .populate('postedBy', '_id name')                          .exec()    res.json(result) } catch(err) ...