How to call To(factory) with an async method

[alex6dj]

The title has the question. So I want to initialize TelegramUserBot during injection but .Initialize() is an async method and factory dont accept a Task<> return.

IConfiguration To<T>(global::System.Func<IContext, T> factory);

Any solution ? Thanks.

[alex6dj]

It seems that what I thought was wrong. What would be the correct way to initialize this class would be the correct question.

[NikolayPianikov]

@alex6dj Unfortunately for factories you can't use the syntax with the "async" keyword right now. But you can do it like this:

using Pure.DI;

var composition = new Composition();
var consumer = composition.Consumer;
await consumer.RunAsync();

DI.Setup(nameof(Composition))
    .Bind().To(ctx =>
    {
        ctx.Inject(out Bot bot);

        // Returns Task<Bot>
        return bot.InitializeAsync()
            .ContinueWith(_ => bot);
    })
    .Root<Consumer>("Consumer");

class Bot
{
    public async Task InitializeAsync()
    {
        Console.WriteLine("Initialize");
        await Task.Delay(3000);
        Console.WriteLine("Initialized");
    }

    public void DoSomethig() => 
        Console.WriteLine("Done");
}

class Consumer(Task<Bot> botTask)
{
    public async Task RunAsync()
    {
        Console.WriteLine("Start");
        var bot = await botTask;
        bot.DoSomethig();
        Console.WriteLine("Finish");
    }
}

I'll think about a solution to this issue, but I'm not sure it can be done easily yet.

[alex6dj]

@NikolayPianikov thanks for the fast answer. Im using this DI library for NativeAOT publication.
Im using Rx.Net in my apps and doing for now a similar workaround for the initialization step and its working ok.