message: Replace unnecessary complex code
  The addBasketItems code was that complex only because it is intentionally insecure.
  The actual request body is pretty straight forward when using `req.body`
diff: @@ -52,21 +52,7 @@ module.exports.addBasketItem = function addBasketItem () {
  module.exports.quantityCheckBeforeBasketItemAddition = function quantityCheckBeforeBasketItemAddition () {
  return (req, res, next) => {
  - let result = utils.parseJsonCustom(req.rawBody)
  - let productIds = []
  - let basketIds = []
  - let quantities = []
  -
  - for (let i = 0; i < result.length; i++) {
  - if (result[i].key === 'ProductId') {
  - productIds.push(result[i].value)
  - } else if (result[i].key === 'BasketId') {
  - basketIds.push(result[i].value)
  - } else if (result[i].key === 'quantity') {
  - quantities.push(result[i].value)
  - }
  - }
  - quantityCheck(req, res, next, productIds[0], quantities[0])
  + quantityCheck(req, res, next, req.body.ProductId, req.body.quantity)
  }
  }
  