How can I use mongoose first with mongoose find, then with forEach loop and as last with mongoose create.

When I use forEach in mongoose I get a "Cannot set headers after they are sent to the client". I am aware that the forEach is not completely executed because a res.send has apparently already taken place. Otherwise it would at least not come to this error message.

How can I use mongoose with forEach so that the code only continues when the for forEach loop is complete?

Here my code:

	Carts.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
	OrderD.create(element, function (err, orderitems) {
	if (err) {
	console.log(err)
	return res.send({isCreated: false})
	}
	})
	});
	return res.send({isCreated: true})
	})

view raw mongoose-find-foreach-create-newest,js hosted with ❤ by GitHub