Add buyWithQuantity iOS function

README.md

@@ -65,6 +65,7 @@ Also, note that this is our last migration for renaming method names without any
 | getAvailablePurchases | | `Promise<Purchase[]>` | Get all purchases made by the user (either non-consumable, or haven't been consumed yet)
 | buySubscription | `string` Subscription ID/sku, `string` Old Subscription ID/sku (on Android) | `Promise<Purchase>` | Create (buy) a subscription to a sku. For upgrading/downgrading subscription on Android pass second parameter with current subscription ID, on iOS this is handled automatically by store. |
 | buyProduct | `string` Product ID/sku | `Promise<Purchase>` | Buy a product |
+| buyProductWithQuantityIOS | `string` Product ID/sku, `number` Quantity | `Promise<Purchase>` | Buy a product with a specified quantity (iOS only) |
 | buyProductWithoutFinishTransaction | `string` Product ID/sku | `Promise<Purchase>` | Buy a product without finish transaction call (iOS only) |
 | finishTransaction | `void` | `void` | Send finishTransaction call to Apple IAP server. Call this function after receipt validation process |
 | consumeProduct | `string` Purchase token | `Promise<void>` | Consume a product (on Android.) No-op on iOS. |

index.d.ts

@@ -104,6 +104,14 @@ export function buySubscription(sku: string, oldSku?: string) : Promise<Subscrip
  */
 export function buyProduct(sku: string) : Promise<ProductPurchase>;
 
+/**
+ * Buy a product with a specified quantity (iOS only)
+ * @param {string} sku The product's sku/ID
+ * @param {number} quantity The amount of product to buy
+ * @returns {Promise<Purchase>}
+ */
+export function buyProductWithQuantityIOS(sku: string, quantity: number) : Promise<ProductPurchase>;
+
 /**
  * Buy a product without finish transanction to sync with IOS purchasing consumables. Make sure to call finishTransanction when you are done with it or the purchase may not be transferred. Also, note that this method is not changed from buyProduct in android.
  * @param {string} sku The product's sku/ID

index.js

@@ -104,6 +104,16 @@ export const buyProduct = (sku) => Platform.select({
   android: () => RNIapModule.buyItemByType(ANDROID_ITEM_TYPE_IAP, sku, null)
 })();
 
+/**
+ * Buy a product with a specified quantity (iOS only)
+ * @param {string} sku The product's sku/ID
+ * @param {number} quantity The amount of product to buy
+ * @returns {Promise<ProductPurchase>}
+ */
+export const buyProductWithQuantityIOS = (sku, quantity) => Platform.select({
+  ios: () => RNIapIos.buyProductWithQuantityIOS(sku, quantity),
+  android: () => Promise.resolve()
+})();
 
 /**
  * Buy a product without transaction finish (iOS only)
@@ -227,6 +237,7 @@ export default {
   consumeAllItems,
   buySubscription,
   buyProduct,
+  buyProductWithQuantityIOS,
   buyProductWithoutFinishTransaction,
   finishTransaction,
   consumePurchase,

ios/RNIapIos.m

@@ -116,6 +116,29 @@ -(void)rejectPromisesForKey:(NSString*)key code:(NSString*)code message:(NSStrin
   }
 }
 
+RCT_EXPORT_METHOD(buyProductWithQuantityIOS:(NSString*)sku
+                  quantity:(NSInteger*)quantity
+                  resolve:(RCTPromiseResolveBlock)resolve
+                  reject:(RCTPromiseRejectBlock)reject) {
+  NSLog(@"\n\n\n  buyProductWithQuantityIOS  \n\n.");
+  autoReceiptConform = true;
+  SKProduct *product;
+  for (SKProduct *p in validProducts) {
+    if([sku isEqualToString:p.productIdentifier]) {
+      product = p;
+      break;
+    }
+  }
+  if (product) {
+    SKMutablePayment *payment = [SKMutablePayment paymentWithProduct:product];
+    payment.quantity = quantity;
+    [[SKPaymentQueue defaultQueue] addPayment:payment];
+    [self addPromiseForKey:RCTKeyForInstance(payment.productIdentifier) resolve:resolve reject:reject];
+  } else {
+    reject(@"E_DEVELOPER_ERROR", @"Invalid product ID.", nil);
+  }
+}
+
 RCT_EXPORT_METHOD(buyProductWithoutAutoConfirm:(NSString*)sku
                   resolve:(RCTPromiseResolveBlock)resolve
                   reject:(RCTPromiseRejectBlock)reject) {