Update to Windows.Services.Store API in UWP & Add Subscriptions

[jerry2007]

The Windows.ApplicationModel.Store namespace is no longer being updated with new features. If your project targets Windows 10 Anniversary Edition (10.0; Build 14393) or a later release in Visual Studio (that is, you are targeting Windows 10, version 1607, or later), we recommend that you use the Windows.Services.Store namespace instead. For more information, see In-app purchases and trials. The Windows.ApplicationModel.Store namespace is not supported in Windows desktop applications that use the Desktop Bridge or in apps or games that use a development sandbox in Dev Center (for example, this is the case for any game that integrates with Xbox Live). These products must use the Windows.Services.Store namespace to implement in-app purchases and trials.

this is in microsoft docs...

Could be UWP plugin updated to use this new namespace?

[jamesmontemagno]

Sure can, you can send a PR to if you want.

[jamesmontemagno]

Looks like it is a pretty big change. Will have to put it on the back log for now.

[myrobotzone]

Hello, in case it's useful for someone else, I created experimental implementations for GetProductInfoAsync(), GetPurchasesAsync() and PurchaseAsync(), that use the Windows.Services.Store namespace. For details, see https://github.com/myrobotzone/InAppBillingPlugin. I tested GetProductInfoAsync() and GetPurchasesAsync() with may app's subscription add-on, but so far I haven't tried PurchaseAsync(). Since it was just a spike there is no pull request.

[jamesmontemagno]

May I recommend sending a PR down so I can review to this repo. @myrobotzone

[ates-mates]

Hi. The method mentioned below worked for WinUI on Net Maui platform. I tested it, it worked. I'm writing in case it helps. I'm not good at deleting this job as I'm doing it for hobby purposes, sorry if there's anything wrong. Frankly, I don't know how to send PR.

private StoreContext GetStoreContext() { var window = ((MauiWinUIWindow)App.Current.Windows[0].Handler.PlatformView) ?? throw new NullReferenceException("GetActiveWindow returned null Window"); StoreContext context = StoreContext.GetDefault(); // Obtain window handle by passing in pointer to the window object var hwnd = WinRT.Interop.WindowNative.GetWindowHandle(window); // Initialize the dialog using wrapper function for IInitializeWithWindow WinRT.Interop.InitializeWithWindow.Initialize(context, hwnd); return context; } public ObservableCollection Items { get; set; } = new();

private async void GetAssociatedProducts(object sender,EventArgs e)
{
    // Create a filtered list of the product AddOns I care about
    string[] filterList = new string[] { "Consumable", "Durable", "UnmanagedConsumable" };

    // Get list of Add Ons this app can sell, filtering for the types we know about
    StoreProductQueryResult addOns = await GetStoreContext().GetAssociatedStoreProductsAsync(filterList);

    foreach (KeyValuePair<string, StoreProduct> item in addOns.Products)
    {
        // Access the Store product info for the add-on.
        StoreProduct product = item.Value;
        Items.Add(product);
        // Use members of the product object to access listing info for the add-on...
    }

    ProductsListView.ItemsSource = Items;
}

public async Task PurchaseAddOn(string storeId)
{ 
    StorePurchaseResult result = await GetStoreContext().RequestPurchaseAsync(storeId);
    // Capture the error message for the operation, if any.
    string extendedError = string.Empty;
    if (result.ExtendedError != null)
    {
        extendedError = result.ExtendedError.Message;
    }
    switch (result.Status)
    {
        case StorePurchaseStatus.AlreadyPurchased:
            await DisplayAlert("Status", "AlreadyPurchased", "OK");
            break;

        case StorePurchaseStatus.Succeeded:
            await DisplayAlert("Status", "Succeeded", "OK");
            break;

        case StorePurchaseStatus.NotPurchased:
            await DisplayAlert("Status", "NotPurchased", "OK");
            break;

        case StorePurchaseStatus.NetworkError:
            await DisplayAlert("Status", "NetworkError", "OK");
            break;

        case StorePurchaseStatus.ServerError:
            await DisplayAlert("Status", "ServerError", "OK");
            break;

        default:
            await DisplayAlert("Status", "UnknownError", "OK");
            break;
    }
}

private async void Button_Clicked(object sender, EventArgs e)
{
    var item = (Button)sender;        
    await PurchaseAddOn(item.CommandParameter.ToString());
}