mongoose upsert add to array code example

Example 1: add items to a list in a document monoose

const {name , id} = req.body
    Category.update(
        {_id: id}, 
        {$push: {items: {"name": name}}},{new: true, upsert: true }).exec();
        res.sendStatus(200)

Example 2: mongodb add to array if not exists

db.tags.update(
    {name: 'sport'},
    {$addToSet: { videoIDs: "34f54e34c" } }
);