Set API inventory map to use string

Author: cpacia

core/inventory.go

@@ -19,8 +19,8 @@ var (
 
 // InventoryListing is the listing representation stored on IPFS
 type InventoryListing struct {
-	Inventory   *big.Int `json:"inventory"`
-	LastUpdated string   `json:"lastUpdated"`
+	Inventory   string `json:"inventory"`
+	LastUpdated string `json:"lastUpdated"`
 }
 
 // Inventory is the complete inventory representation stored on IPFS
@@ -34,16 +34,18 @@ func (n *OpenBazaarNode) GetLocalInventory() (Inventory, error) {
 		return nil, err
 	}
 
-	inventory := make(Inventory, len(listings))
-	totalCount := big.NewInt(0)
+	var (
+		totalCount *big.Int
+		inventory  = make(Inventory, len(listings))
+	)
 	for slug, variants := range listings {
 		totalCount = big.NewInt(0)
 		for _, variantCount := range variants {
 			totalCount = new(big.Int).Add(totalCount, variantCount)
 		}
 
 		inventory[slug] = &InventoryListing{
-			Inventory:   totalCount,
+			Inventory:   totalCount.String(),
 			LastUpdated: time.Now().UTC().Format(time.RFC3339),
 		}
 	}
@@ -65,7 +67,7 @@ func (n *OpenBazaarNode) GetLocalInventoryForSlug(slug string) (*InventoryListin
 	}
 
 	inventory = &InventoryListing{
-		Inventory:   totalCount,
+		Inventory:   totalCount.String(),
 		LastUpdated: time.Now().UTC().Format(time.RFC3339),
 	}
 

qa/testdata/listing_crypto.json

@@ -17,9 +17,7 @@
         "price": "0",
         "priceCurrency": {
             "code": "TETH",
-            "divisibility": 8,
-            "name": "A",
-            "currencyType": "A"
+            "divisibility": 8
         },
         "images": [{
             "tiny": "QmUAuYuiafnJRZxDDX7MuruMNsicYNuyub5vUeAcupUBNs",

repo/listing.go

@@ -1651,9 +1651,10 @@ func (l *Listing) GetInventory() (map[int]*big.Int, error) {
 	inventory := make(map[int]*big.Int)
 	for i, s := range listing.Item.Skus {
 		var amtStr string
-		if s.BigQuantity != "" {
+		switch l.ListingVersion {
+		case 5:
 			amtStr = s.BigQuantity
-		} else {
+		default:
 			amtStr = strconv.Itoa(int(s.Quantity))
 		}
 		amt, ok := new(big.Int).SetString(amtStr, 10)
@@ -2119,7 +2120,6 @@ func (l *Listing) validateCryptocurrencyListing() error {
 		return ErrListingCryptoCurrencyCodeInvalid
 	}
 
-
 	cryptoDivisibility := l.GetCryptoDivisibility()
 	if cryptoDivisibility == 0 {
 		return ErrListingCryptoDivisibilityInvalid