Index

Unity3D Asset
Quick Implementation
Step1
Step2
Step3
Implementation
Initialize
Purchasable Items
License Information
Purchase Product
Test the Windows Phone 8 InApp Purchases

Unity3D Asset

Download the Asset from the Unity Asset Store Windows Phone8 In App
Requirement Unity 3D 4.2  Basic or Pro

Quick Implementation

3 small steps for your first Windows Phone 8 inApp Purchase

Step 1

Use this namespace

using WindowsPhone8_Store;
//

Step 2

Use this for initialization and set the event

 private WindowsPhone8_Store.InApp WP8inApp;

    void Start()
    {
            WP8inApp = new InApp();
            WP8inApp.InitWindowsPhone8InApp();
            WindowsPhone8_Store.InApp.onWP8inAppPurchased += onWP8inAppPurchased;
            WindowsPhone8_Store.InApp.onWP8inAppTransactionsRestored += onWP8inAppTransactionsRestored;
            WindowsPhone8_Store.InApp.onWP8inAppCancelled += onWP8inAppCancelled;
            WindowsPhone8_Store.InApp.onWP8inAppFailed += onWP8inAppFailed;
    }

Step3

    void PurchaseProduct() {
        // Buy the product
        WP8inApp.PurchaseProduct("coin100");
    }

    //
    // Events from WP8InAppPlugin
    //
    private void onWP8inAppTransactionsRestored(bool success)
    {
        Debug.Log("Transactions restored:" + success);
    }

    private void onWP8inAppPurchased(PurchasableProduct item)
    {
        Debug.Log("Purchased Done" + item.ProductId);
        if (item.ItemProductType == PurchasableProduct.ProductType.Consumable)
        {
            // A user can’t purchase the same product again until you have confirmed its.
            // This applies only to consumable products.
            // MyCoins += 100;
            WP8inApp.ReportProductFulfillment(item.ProductId);
        }
    }

    private void onWP8inAppCancelled(PurchasableProduct item)
    {
        Debug.Log("Purchase cancelled: " + item.ProductId);
    }

    private void onWP8inAppFailed(PurchasableProduct item)
    {
        Debug.Log("Purchase failed: " + item.ProductId);
    }

Implementation

Include the namespace for using the dll (WindowsPhone8_Store.dll)

using WindowsPhone8_Store;

Define global variable

private WindowsPhone8_Store.InApp WP8inApp;

You should initialize WP8InApp in the Start routine and Setup the Events

Initialize

    void Start()
    {
        // Init the Windows Phone 8 InApp
        WP8inApp = new InApp();
        WP8inApp.InitWindowsPhone8InApp();

        // Setup the Events
        WindowsPhone8_Store.InApp.onWP8inAppPurchased += onWP8inAppPurchased;
        WindowsPhone8_Store.InApp.onWP8inAppTransactionsRestored += onWP8inAppTransactionsRestored;
        WindowsPhone8_Store.InApp.onWP8inAppCancelled += onWP8inAppCancelled;
        WindowsPhone8_Store.InApp.onWP8inAppFailed += onWP8inAppFailed;
    }

The most Calls to the Windows Phone 8 InApp Api calls are async and fire an event after there are finished.

    //item was purchased successfully
    private void onWP8inAppPurchased(PurchasableProduct item) {
    }
    //success is True when the user own the item
    private void onWP8inAppTransactionsRestored(bool success) {
    }
    //item purchase process was cancelled from the user
    private void onWP8inAppCancelled(PurchasableProduct item) {
    }
    //item can not be purchased. Read the log file
    private void onWP8inAppFailed(PurchasableProduct item) {
    }

Purchasable Items

There are two functions to get all purchasables items. The first gives you a String Array with all Product IDs. The other
function Return an Array from type PurchasableProduct.

    // Return String[] array with all purchasable id from the Windows Phone 8 Store
    WP8inApp.AllPurchasableItems() 

    // Return PurchasableProduct[] array with all purchasable item infos
    WP8inApp.AllPurchasableItemIDs();

Purchasable Product Item

License Information

Provides access to the current app’s license metadata.

 WP8inApp.GetLicenseInformation("productid")

Purchase Product

To purchases the InApp product you only need the product ID which you can get from WP8inApp.AllPurchasableItemIDs();

void PurchaseProduct() {
   // Buy the Product
   WP8inApp.PurchaseProduct("coin100");
}

Test the Windows Phone 8 InApp Purchases

In Unity3D Editor  you get some test items.
You can test in-app purchase in your Windows Phone app by following one of these techniques.

Version 1.1 (2 Feb 2016)