// Get Total
exports.getTotal = (req,res) => {
  let productList = req.body;
  let total = 0;
  productList.forEach((product) => {
      console.log('product id is',  product._id); // Returns correct id
      Product.findById(product._id)
          .select('price')
          .exec((err, foundProduct) => {
              if (err){
                  console.log(`Error: Product with id ${product._id} not found.`);
              } else {
                  console.log('Product price is', foundProduct.price); // Returns correct price
                  total += foundProduct.price;
              }
          })
  });
   console.log('Total is', total);
};