feat: get lowest priced offers for sku

src/sections/products/codec.ts

@@ -212,20 +212,34 @@ export const GetLowestOfferListingsForASINResponse = Codec.interface({
  * This has attributes instead of children, how do we handle that?
  * http://docs.developer.amazonservices.com/en_CA/products/Products_Datatypes.html#OfferCount
  */
-// const OfferCountType = number
+const OfferCountType = Codec.interface({
+  OfferCount: number,
+})
 
-// const LowestPrice
+const LowestPrice = Codec.interface({
+  LandedPrice: MoneyType,
+  ListingPrice: MoneyType,
+  Shipping: MoneyType,
+  Points: optional(Points),
+})
 
-// const Summary = Codec.interface({
-//   TotalOfferCount: number,
-//   NumberOfOffers: OfferCountType,
-//   LowestPrices: optional(ensureArray('LowestPrice', LowestPrice)),
-//   BuyBoxPrices: optional(ensureArray('BuyBoxPrice', BuyBoxPrice)),
-//   ListPrice: optional(MoneyType),
-//   SuggestedLowerPricePlusShipping: optional(MoneyType),
-//   BuyBoxEligibleOffers: optional(OfferCountType),
-//   OffersAvailableTime: optional(mwsDate)
-// })
+const BuyBoxPrice = Codec.interface({
+  LandedPrice: MoneyType,
+  ListingPrice: MoneyType,
+  Shipping: MoneyType,
+  Points: optional(Points),
+})
+
+const Summary = Codec.interface({
+  TotalOfferCount: number,
+  NumberOfOffers: OfferCountType,
+  LowestPrices: optional(ensureArray('LowestPrice', LowestPrice)),
+  BuyBoxPrices: optional(ensureArray('BuyBoxPrice', BuyBoxPrice)),
+  ListPrice: optional(MoneyType),
+  SuggestedLowerPricePlusShipping: optional(MoneyType),
+  BuyBoxEligibleOffers: optional(OfferCountType),
+  OffersAvailableTime: optional(mwsDate),
+})
 
 const Identifier = Codec.interface({
   MarketplaceId: string,
@@ -234,19 +248,51 @@ const Identifier = Codec.interface({
   TimeOfOfferChange: optional(mwsDate),
 })
 
+const SellerFeedbackRating = Codec.interface({
+  SellerPositiveFeedbackRating: optional(number),
+  FeedbackCount: number,
+})
+
+/**
+ * Does not have elements, but is defined by attributes
+ */
+const DetailedShippingTimeType = optional(unknown)
+
+const ShipsFrom = Codec.interface({
+  State: optional(string),
+  Country: optional(string),
+})
+
+const Offer = Codec.interface({
+  MyOffer: optional(boolean),
+  SubCondition: string,
+  SellerFeedbackRating: optional(SellerFeedbackRating),
+  ShippingTime: DetailedShippingTimeType,
+  ListingPrice: MoneyType,
+  Points: optional(Points),
+  Shipping: MoneyType,
+  ShipsFrom: optional(ShipsFrom),
+  IsFulfilledByAmazon: boolean,
+  IsBuyBoxWinner: optional(boolean),
+  IsFeaturedMerchant: optional(boolean),
+})
+
 const GetLowestPricedOffersForSKU = Codec.interface({
   Identifier,
-  Summary: unknown,
-  Offers: unknown,
+  Summary,
+  Offers: ensureArray('Offer', Offer),
 })
 
 export const GetLowestPricedOffersForSKUResponse = Codec.interface({
   GetLowestPricedOffersForSKUResponse: Codec.interface({
     GetLowestPricedOffersForSKUResult: GetLowestPricedOffersForSKU,
   }),
 })
+
 /**
+ *
  * Types derived from codecs
+ *
  */
 
 export type GetMatchingProductForIdResponse = GetInterface<typeof GetMatchingProductForIdResponse>

test/unit/__snapshots__/products.test.ts.snap

@@ -399,8 +399,8 @@ Array [
       "SellerSKU": "GE Product",
       "TimeOfOfferChange": 2015-07-19T23:15:11.859Z,
     },
-    "Offers": Object {
-      "Offer": Object {
+    "Offers": Array [
+      Object {
         "IsBuyBoxWinner": true,
         "IsFeaturedMerchant": true,
         "IsFulfilledByAmazon": true,
@@ -409,6 +409,7 @@ Array [
           "CurrencyCode": "USD",
         },
         "MyOffer": false,
+        "Points": undefined,
         "SellerFeedbackRating": Object {
           "FeedbackCount": 1,
           "SellerPositiveFeedbackRating": 100,
@@ -418,15 +419,16 @@ Array [
           "CurrencyCode": "USD",
         },
         "ShippingTime": "",
+        "ShipsFrom": undefined,
         "SubCondition": "new",
       },
-    },
+    ],
     "Summary": Object {
       "BuyBoxEligibleOffers": Object {
         "OfferCount": 1,
       },
-      "BuyBoxPrices": Object {
-        "BuyBoxPrice": Object {
+      "BuyBoxPrices": Array [
+        Object {
           "LandedPrice": Object {
             "Amount": 32.99,
             "CurrencyCode": "USD",
@@ -435,18 +437,19 @@ Array [
             "Amount": 32.99,
             "CurrencyCode": "USD",
           },
+          "Points": undefined,
           "Shipping": Object {
             "Amount": 0,
             "CurrencyCode": "USD",
           },
         },
-      },
+      ],
       "ListPrice": Object {
         "Amount": 58.34,
         "CurrencyCode": "USD",
       },
-      "LowestPrices": Object {
-        "LowestPrice": Object {
+      "LowestPrices": Array [
+        Object {
           "LandedPrice": Object {
             "Amount": 32.99,
             "CurrencyCode": "USD",
@@ -455,15 +458,17 @@ Array [
             "Amount": 32.99,
             "CurrencyCode": "USD",
           },
+          "Points": undefined,
           "Shipping": Object {
             "Amount": 0,
             "CurrencyCode": "USD",
           },
         },
-      },
+      ],
       "NumberOfOffers": Object {
         "OfferCount": 1,
       },
+      "OffersAvailableTime": undefined,
       "SuggestedLowerPricePlusShipping": Object {
         "Amount": 32.99,
         "CurrencyCode": "USD",