Get which coupon code applied in checkout

[Komal2905]

I have applied coupon code in checkout which is "MoneyV2" based, and it is successfully applied I can see that in checkout detail. but what I could not find is that how to fetch which coupon has applied.

{node(id:"NODE_ID"){__typename,... on Checkout{id,webUrl,currencyCode,subtotalPrice,totalPrice,discountApplications(first:1){edges{node{__typename,... on DiscountCodeApplication{applicable,code,value{__typename,... on MoneyV2{amount},... on PricingPercentageValue{percentage}}},... on ManualDiscountApplication{title},... on ScriptDiscountApplication{title}}}}}}}

I am using following query and can see coupon code in

  discountApplications =     {
        edges =         (
                        {
                node =                 {
                    "__typename" = DiscountCodeApplication;
                    applicable = 1;
                    code = GET30;
                    value =                     {
                        "__typename" = MoneyV2;
                        amount = "48.0";
                    };
                };
            }
        );
    };

[rebeccajfriedman]

Hi @Komal2905 - it looks like the response you printed contains code = GET30;. This means that the coupon code was GET30. Hope this helps!

[Komal2905]

@rebeccajfriedman though I am getting this response, I don't find any way to parse this. like discountApplications.edges.node.first.code - is this possible. or any way like this

[dbart01]

The trouble is that you're attempting to use Storefront.DiscountApplication directly. It is a GraphQL interface, which translates into Swift as a protocol. Since not all discount applications can be treated the same way, you must disambiguate the type before consuming it in your application layer. Please take a look at the sample app example for a more in-depth example on how to work with discount applications.