In App Purchase controller

Install

pod 'IAPController'

Swift (Default)

pod 'IAPController/Swift'

Objective-C

pod 'IAPController/ObjC'

Usage

Create a plist-file named IAPControllerProductIds.plist that contains the identifiers of your in-app purchases:

<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
<plist version="1.0">
<array>
  <string>com.thematerik.IAPController.product1</string>
  <string>com.thematerik.IAPController.product2</string>
</array>
</plist>

Fetch the products in the didFinishLaunchingWithOptions method in your AppDelegate:

IAPController.sharedInstance.fetchProducts()

Use observers to listen to in-app purchases events:

• IAPControllerFetchedNotification: when the products have been fetched from the store
• IAPControllerPurchasedNotification: when a product have been purchased
• IAPControllerFailedNotification: when a transaction could not be finished
• IAPControllerRestoredNotification: when the user restored his in-app purchases

SKProduct have been given some useful helper methods, example:

if let product = IAPController.sharedInstance.products?.first {
    // Printing the price of the product
    print(product.priceFormatted)
    // Buying the product
    product.buy()
}

Restore purchases by calling:

IAPController.sharedInstance.restore()

The same API call works for Objective-C as well