2 objects are created in the database, why?

Question

MongoDB

I receive data from the client and update the array of user books, adding the text of the book, its title, etc., but one object is created separately with the text and the other without it, what did I do wrong?

router.post('/profile/:id/book', async(req, res) => {
    try {
        // get info from client
        const {name, img, textBook} = req.body;
        
        // search user
        const user = await User.findById(req.params.id);

        // update finded user
        await User.updateOne({
            email: user.email
        }, {
            $push: {
                books: {$each: [{
                    name,
                    img,
                    text: textBook,
                    author: `${user.firstName} ${user.lastName}`,
                    authorID: user._id
                }], $position: 0}
            }
        });

        res.redirect('/profile/'+user._id);
    } catch (e) {
        console.log(e.message);
    }
})

Answer 1

Well, apparently you have two different records, with different names. I think everything is ok with your code, rather the problem is with the data.