mongoose-find-loop-create.js

Cats.find({ user: req.params.user }, function (err, product) {
    if (err) {
      return res.send({ isFound: false });
    }
    if (!product) {
      return res.send({ isFound: false });
    }

      product.forEach(element => {
        element.orderid = req.params.smaorderid
        Detail.create(element, function (err, orderitems) {
          if (err) {
            console.log(err)
            return res.send({isCreated: false})
          }
        })  
      });
      
      return res.send({isCreated: true})
})