update in mongoose node js

1app.put('/student/:id', (req, res) => {
2    Student.findByIdAndUpdate(req.params.id, req.body, (err, user) => {
3        if (err) {
4            return res
5                .status(500)
6                .send({error: "unsuccessful"})
7        };
8        res.send({success: "success"});
9    });
10
11});

1// Using queries with promise chaining
2Model.findOne({ name: 'Mr. Anderson' }).
3  then(doc => Model.updateOne({ _id: doc._id }, { name: 'Neo' })).
4  then(() => Model.findOne({ name: 'Neo' })).
5  then(doc => console.log(doc.name)); // 'Neo'
6
7// Using queries with async/await
8const doc = await Model.findOne({ name: 'Neo' });
9console.log(doc.name); // 'Neo'

1var conditions = { name: 'bourne' } 
2  , update = { $inc: { visits: 1 }}
3
4Model.update(conditions, update, { multi: true }).then(updatedRows=>{
5  
6}).catch(err=>{
7  console.log(err)
8  
9})

1router.patch('/:id', (req, res, next) => {
2    const id = req.params.id;
3    Product.findByIdAndUpdate(id, req.body, {
4            new: true
5        },
6        function(err, model) {
7            if (!err) {
8                res.status(201).json({
9                    data: model
10                });
11            } else {
12                res.status(500).json({
13                    message: "not found any relative data"
14                })
15            }
16        });
17});
18