async update(req, res) {
        if(!req.params.id || !req.body.name) {
            res.status(400);
            res.json({
                success: false,
                message: 'Bad request'
            });
        }
        
        const _id = req.params.id;

        await Employee.updateOne({ _id }, req.body);
        const updatedEmployee = await Employee.findById(_id);
        res.status(200);
        res.json({
            success: true,
            body: updatedEmployee,
            message: 'Ok'
        });
    }