How do you access this property from the OwinStartup file?

Question

I'm creating an ASP.NET Identity 2.1 WebAPI service. It allows for registration, logging in and authorizing authtokens. In the Owin startup class that I have created following this tutorial is the following code:

public class OwinStartup
{
    public void Configuration(IAppBuilder app)
    {
        HttpConfiguration httpConfig = new HttpConfiguration();

        ConfigureOAuthTokenGeneration(app);

        ConfigureWebApi(httpConfig);

        app.UseCors(Microsoft.Owin.Cors.CorsOptions.AllowAll);

        app.UseWebApi(httpConfig);
    }

    private void ConfigureOAuthTokenGeneration(IAppBuilder app)
    {
        // Configure the db context and user manager to use a single instance per request
        app.CreatePerOwinContext(AppDbContext.Create);
        app.CreatePerOwinContext<AppUserManager>(AppUserManager.Create);

        // Plugin the OAuth bearer JSON Web Token tokens generation and Consumption will be here
    }

    private void ConfigureWebApi(HttpConfiguration config)
    {
        config.MapHttpAttributeRoutes();

        var jsonFormatter = config.Formatters.OfType<JsonMediaTypeFormatter>().First();
        jsonFormatter.SerializerSettings.ContractResolver = new CamelCasePropertyNamesContractResolver();
    }
}

Now, in the ConfigureOAuthTokenGeneration method, a DbContext and UserManager are created. My question: how do I access this dbContext and UserManager in a different class in my WepAPI project?

Answer 1

AppDbContext context = HttpContext.Current.GetOwinContext().Get<AppDbContext>();
AppUserManager userManager = HttpContext.Current.GetOwinContext().Get<AppUserManager();

The same way the AccountController (in the sample project) retrieves these values.