JobScheduler HttpClient.SendAsync disposes my IServiceProvider

[yunits]

Hello,
first I want to mention that this might or might be not related to eXpand.
I was struggling long to find the cause of my issue and want to ask if it is correct to do it the way I do.

I've set up a XAF Blazor App with eXpand JobScheduler.

As the docs state we have to create a new job for example like follows:

 [JobProvider]
 public class Import {
     public IServiceProvider Provider { get; }
     public Import() { }
     [ActivatorUtilitiesConstructor]
     public Import(IServiceProvider provider) {
         Provider = provider;
     }

     [JobProvider("Customize-Name")]
     public async Task DailyOrders() {
         await Provider.RunWithStorageAsync(application => {
               ...
          }
     }
 }

Everything worked fine until I switched my API-calls from
HttpClient.SendAsync().Result to await HttpClient.SendAsync()

awaiting SendAsync disposes my IServiceProvider, therefore I cant use my ObjectSpace anymore.

The solution for me is to use .Result instead of await (poor implementation) or just Inject for example INonSecuredObjectSpaceFactory instead of IServiceProvider.

So as I don't understand what your code does (it looks like magic every time for me) for example "RunWithStorageAsync" and so on, I just want to show you my current implementation and ask if it is correct this way?
For me it is working but there is surely any reason why you did it as you did with ServiceProvider and so on.

 [JobProvider]
 public class Import {
     public INonSecuredObjectSpaceFactory INonSecuredObjectSpaceFactory { get; }
     public Import() { }
     [ActivatorUtilitiesConstructor]
     public Import(INonSecuredObjectSpaceFactory ns) {
         INonSecuredObjectSpaceFactory = ns;
     }

     [JobProvider("Customize-Name")]
     public async Task DailyOrders() {
         var nsObjectSpace = INonSecuredObjectSpaceFactory.CreateNonSecuredObjectSpace(typeof(Verkaufskanal));
         // work with os, await some code for example SendAsync etc.
     }
 }

[apobekiaris]

in general the principle is after u await u should query the db again meaning create a new objectSpace and do objectSpace.GetObject(objectB4TheAwait)

[yunits]

sounds very complicated, do you have a reference so that I can read more about it?
I never faced this kind of issue before.

I will test it with my injected INonSecuredObjectSpaceFactory. I am using one ObjectSpace with multiple NestedObjectSpaces to just commit one time to db. If I would create a new objectSpace everytime, I would lose this easy OS/Nested-connection.

[apobekiaris]

        public static async Task DailyOrders() {
            await Provider.RunWithStorageAsync(application => application.CreateOrders()
                    .SelectMany(orders=>HttpClient.SendAsync(new HttpRequestMessage(HttpMethod.Get, $"/api/orders?lenght?{orders.Length}")).ToObservable()
                        .SelectMany(message => application.UseArray(orders,orders1 => orders1.Do(order => order.UpdateTime=DateTime.Now).Commit()))))
                .ToObservable().To(true);
        }

not that complex this framework has all the extensions u need at the right place. Note that this case is about .NET not about XAF or eXpand

[yunits]

My main goal was to check if my injected OS would work.
I've already released my jobprovider and don't see any diff right now. Everything works.

I've never read that you need to create a new OS after awaiting httpclient. Thats what I was asking for.