func()

in online_boutique_demo/src/frontend/handlers.go [326:396]

• 65 lines of code
• 5 McCabe index (conditional complexity)

func (fe *frontendServer) placeOrderHandler(w http.ResponseWriter, r *http.Request) {
	log := r.Context().Value(ctxKeyLog{}).(logrus.FieldLogger)
	log.Debug("placing order")

	var (
		email         = r.FormValue("email")
		streetAddress = r.FormValue("street_address")
		zipCode, _    = strconv.ParseInt(r.FormValue("zip_code"), 10, 32)
		city          = r.FormValue("city")
		state         = r.FormValue("state")
		country       = r.FormValue("country")
		ccNumber      = strings.ReplaceAll(r.FormValue("credit_card_number"), "-", "")
		ccMonth, _    = strconv.ParseInt(r.FormValue("credit_card_expiration_month"), 10, 32)
		ccYear, _     = strconv.ParseInt(r.FormValue("credit_card_expiration_year"), 10, 32)
		ccCVV, _      = strconv.ParseInt(r.FormValue("credit_card_cvv"), 10, 32)
	)

	order, err := fe.checkoutService.PlaceOrder(r.Context(), &pb.PlaceOrderRequest{
		Email: email,
		CreditCard: &pb.CreditCardInfo{
			CreditCardNumber:          ccNumber,
			CreditCardExpirationMonth: int32(ccMonth),
			CreditCardExpirationYear:  int32(ccYear),
			CreditCardCvv:             int32(ccCVV)},
		UserId:       sessionID(r),
		UserCurrency: currentCurrency(r),
		Address: &pb.Address{
			StreetAddress: streetAddress,
			City:          city,
			State:         state,
			ZipCode:       int32(zipCode),
			Country:       country},
	})
	if err != nil {
		renderHTTPError(log, r, w, errors.Wrap(err, "failed to complete the order"), http.StatusInternalServerError)
		return
	}
	log.WithField("order", order.GetOrder().GetOrderId()).Info("order placed")

	order.GetOrder().GetItems()
	recommendations, _ := fe.getRecommendations(r.Context(), sessionID(r), nil)

	totalPaid := order.GetOrder().GetShippingCost()
	for _, v := range order.GetOrder().GetItems() {
		multPrice := money.MultiplySlow(v.GetCost(), uint32(v.GetItem().GetQuantity()))
		totalPaid = money.Must(money.Sum(totalPaid, multPrice))
	}

	currencies, err := fe.getCurrencies(r.Context())
	if err != nil {
		renderHTTPError(log, r, w, errors.Wrap(err, "could not retrieve currencies"), http.StatusInternalServerError)
		return
	}

	if err := templates.ExecuteTemplate(w, "order", map[string]interface{}{
		"session_id":        sessionID(r),
		"request_id":        r.Context().Value(ctxKeyRequestID{}),
		"user_currency":     currentCurrency(r),
		"show_currency":     false,
		"currencies":        currencies,
		"order":             order.GetOrder(),
		"total_paid":        &totalPaid,
		"recommendations":   recommendations,
		"platform_css":      plat.css,
		"platform_name":     plat.provider,
		"is_cymbal_brand":   isCymbalBrand,
		"deploymentDetails": deploymentDetailsMap,
	}); err != nil {
		log.Println(err)
	}
}