using FormValue

db.go

 	r.ParseForm()
 	//assuming form has been parsed
 	row = LeanworkRequest{}
-	pickupUrl, _ := retrieveFormValue(r.Form, "pickupUrl")
-	receiveUrl, _ := retrieveFormValue(r.Form, "receiveUrl")
-	signType, _ := retrieveFormValue(r.Form, "signType")
-	orderNo, _ := retrieveFormValue(r.Form, "orderNo")
-	orderAmount, _ := retrieveFormValue(r.Form, "orderAmount")
-	orderCurrency, _ := retrieveFormValue(r.Form, "orderCurrency")
-	customerId, _ := retrieveFormValue(r.Form, "customerId")
-	sign, _ := retrieveFormValue(r.Form, "sign")
+	pickupUrl := r.FormValue("pickupUrl")
+	receiveUrl := r.FormValue("receiveUrl")
+	signType := r.FormValue("signType")
+	orderNo := r.FormValue("orderNo")
+	orderAmount := r.FormValue("orderAmount")
+	orderCurrency := r.FormValue("orderCurrency")
+	customerId := r.FormValue("customerId")
+	sign := r.FormValue("sign")
 	valid := isLeanworkFormValid(r.Form)
 	ip4 := getClientIPLong(r)