Using mongoose to add new field to existing document in mongodb through update method

Question

I\'m trying to update a mongodb document with mongoose in node.js

When the field exists, the update works, but if the field does not exist, the update will not work.

Answer 1

According to new scenario always use {upsert:true}.

upsert - if set to true and no record matched to the query, replacement object is inserted as a new record.

   user.updateOne(
                 { email: req.body.email },
                 { $set: { name: 'Aaakash'}},{upsert:true}).then((result, err) => {
                    return res.status(200).json({ data: result, message:"Value Updated" });
                })