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README.md

What's IAPHelper

IAPHelper simply wraps the API of Apple's In-App Purchase using Swift. Very lightweight and easy to use.

IAPHelper Usage

Request Product List

var productIdentifiers = Set<ProductIdentifier>()
productIdentifiers.insert("product_id_1")
productIdentifiers.insert("product_id_2")

IAP.requestProducts(productIdentifiers) { (response, error) in
	if let products = response?.products where !products.isEmpty {
		// Get the valid products
	   
	} else if let invalidProductIdentifiers = response?.invalidProductIdentifiers {
		// Some products id are invalid
	   
	} else {
		// Some error happened
	}
}

Purchase Product

 IAP.purchaseProduct(productIdentifier, handler: { (productIdentifier, error) in
	if let identifier = productIdentifier {
		// The product of 'productIdentifier' purchased.
	     
	} else if let error = error as? NSError {
      if error.code == SKError.Code.paymentCancelled.rawValue {
		// User cancelled
        
      } else {
		// Some error happened
      }
    }
})

Restore

 IAP.restorePurchases { (productIdentifiers, error) in
	 if !productIdentifiers.isEmpty {
	 	// Products restored
	   
	 } else if let error = error as? NSError {
       if error.code == SKError.Code.paymentCancelled.rawValue {
	  	// User cancelled
        
       } else {
	  	// Some error happened
       }
      
    } else {
      // No previous purchases were found.
    }
}

Validate Receipt

IAP.validateReceipt(Constants.IAPSharedSecret) { (statusCode, products) in
	if statusCode == ReceiptStatus.NoRecipt.rawValue {
		// No Receipt in main bundle
	} else {
		// Get products with their expire date.
	}
})

Note: IAPHelper directly validate with Apple's server. It's simple, but has risk. You decide to use your own server or not. Here's what Apple suggested:

Use a trusted server to communicate with the App Store. Using your own server lets you design your app to recognize and trust only your server, and lets you ensure that your server connects with the App Store server. It is not possible to build a trusted connection between a user’s device and the App Store directly because you don’t control either end of that connection.

Integrate IAPHelper in Your Project

Just copy IAPHelper.swift to your project, and use it as the demo shows.

IAPHelper Demo

NOTE: You need to change the app bundle id and product id to your own. And also set your shared secret in Constants.swift.

Apps using IAPHelper

It would be great to show your apps using IAPHelper here. Pull requests welcome :)

Note

This library can't help you understand the basic concepts for IAP. For it, please refer to these documents.

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IAPHelper simply wraps the API of Apple's In-App Purchase using Swift.

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