Using Async api

[Jeremy Holt]

I'm starting a new project and decided I would try to use the async api, instead of the sync api which I am comfortable with.

I've clearly misunderstood something here.

The tests for the code below works fine.

However, running the code from the webapi app the code hangs at await session.StoreAsync(farmArea).

(I've stuck the new DocumentStore() into the method for testing purposes only).

The docStore is picking up correctly the connection string from web.config.

Is there some additional configuration required to use the async api?

public async Task<FarmAreaSaveModel> Save(FarmAreaSaveModel model)
        {
            using (var docStore = new DocumentStore())
            {
                docStore.ConnectionStringName = "RavenHQ";
                docStore.Conventions = new DocumentConvention {IdentityPartsSeparator = "-"};
                docStore.Initialize();
 
                using (var session = docStore.OpenAsyncSession())
                {
                    var farmArea = model.Id.IsNullOrEmpty()
                        ? new FarmArea()
                        : await session.LoadAsync<FarmArea>(model.Id) ?? new FarmArea();
 
                    farmArea.Name = model.Name;
 
                    await session.StoreAsync(farmArea);
                    model.Id = farmArea.Id;
                    model.Success = true;
                    model.Message = "Saved farm area";
 
                    await session.SaveChangesAsync();
 
                    return model;
                }
            }
        }

This code works as expected

public FarmAreaSaveModel Save(FarmAreaSaveModel model)
        {
            using (var docStore = new DocumentStore())
            {
                docStore.ConnectionStringName = "RavenHQ";
                docStore.Conventions = new DocumentConvention { IdentityPartsSeparator = "-" };
                docStore.Initialize();
 
                using (var session = docStore.OpenSession())
                {
                    var farmArea = model.Id.IsNullOrEmpty()
                        ? new FarmArea()
                        : session.Load<FarmArea>(model.Id) ?? new FarmArea();
 
                    farmArea.Name = model.Name;
 
                    session.Store(farmArea);
                    model.Id = farmArea.Id;
                    model.Success = true;
                    model.Message = "Saved farm area";
 
                    session.SaveChanges();
 
                    return model;
                }
            }
        }

[Chris Marisic]

When it's hanging are you selfhosting webapi, are you hosting inside ASP.NET+IIS, are you doing new MyService().Foo() from inside a unit test?

[Jeremy Holt]

I'm hosting inside ASP.NET + IIS Express (default in VS 2013)

[Oren Eini (Ayende Rahien)]

Can you send us a repro? A project that shows this issue?

Hibernating Rhinos Ltd  

Oren Eini l CEO l Mobile: + 972-52-548-6969

Office: +972-4-622-7811 l Fax: +972-153-4-622-7811

 

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[Jeremy Holt]

Sorry for the delay - no internet for the last couple of days.

https://github.com/jeremy-holt/FarmManagement.git

Thanks

Jeremy

[Oren Eini (Ayende Rahien)]

http://issues.hibernatingrhinos.com/issue/RavenDB-2789

[Jeremy Holt]

Oren,

Thanks for creating the issue, but surely it can't be a bug in Raven - if this were a common problem it would have been picked up ages ago?

Is there some configuration that I missed in webconfig?

Thanks

Jeremy

[Chris Marisic]

I think he just opened an issue for him to not lose track of this post

[Oren Eini (Ayende Rahien)]

this is just so we can assign it easily to one of our people.

[Jeremy Holt]

Ah. understood.

Thanks

[Jeremy Holt]

Pawel, Oren

Thanks so much for your help. Thanks to the links I now have a much better understanding of how the async api works.

Jeremy