Transactions with ASP.NET Identity UserManager

Question

I am trying to update a user.

AppUserManager appUserManager = HttpContext.GetOwinContext().GetUserManager<AppUserManager>();

AppUser member = await appUserManager.FindByIdAsync(User.Identity.GetUserId());

member.HasScheduledChanges = true;

IdentityResult identityResult = appUserManager.Update(member);

If the subsequent web API call fails, I need to discard any changes for the user. I know about transactions, for example:

using (var context = HttpContext.GetOwinContext().Get<EFDbContext>())
 {
    using (var dbContextTransaction = context.Database.BeginTransaction())
    {      
        try
        {   
            // Changes

            member.HasScheduledChanges = true;

            // Would this be transactional?
            IdentityResult identityResult = appUserManager.Update(member);               

            context.SaveChanges();

            dbContextTransaction.Commit();
        }
        catch //(Exception ex)
        {

            // dbContextTransaction.Rollback(); no need to call this manually.
        }
    }
}

But will operations with the AppUserManager inside the try block be transactional? Also, do they use the same instance of EFDbContext? In other words, I don’t know if the var context at the beginning of the second code example will be used when calling the appUserManager "Update" method in the try block.

In addition, AppUserManager is created as follows:

public static AppUserManager Create(IdentityFactoryOptions<AppUserManager> options, IOwinContext context)
{           

    EFDbContext db = context.Get<EFDbContext>();

    AppUserManager manager = new AppUserManager(new UserStore<AppUser>(db));

    // etc.

    return manager;
}

Answer 1

EFDbContext - OWIN, . , Identity -, SQL Server. AppUserManager. .

var scope = new TransactionScope(TransactionScopeAsyncFlowOption.Enabled) ( ):

using(var scope = new TransactionScope(TransactionScopeAsyncFlowOption.Enabled))
{
    try
    {
        AppUserManager appUserManager = HttpContext.GetOwinContext().GetUserManager<AppUserManager>();

        AppUser member = await appUserManager.FindByIdAsync(User.Identity.GetUserId());

        member.HasScheduledChanges = true;

        IdentityResult identityResult = appUserManager.Update(member);
        scope.Complete();
    }
    catch (Exception ex)
    {
        scope.Dispose();
        throw;
    }
}

Answer 2

/ asp.net UserManager

var appDbContext = HttpContext.GetOwinContext().Get<ApplicationDbContext>();
using (var identitydbContextTransaction = appDbContext.Database.BeginTransaction())
{
   try
   {
       var result = await UserManager.CreateAsync(user, "password");
       if (result.Succeeded)
       {
         var userinfo = await UserManager.FindByNameAsync("Email");
         var userId = user.Id;
         await UserManager.AddToRoleAsync(userId, "rolename");

         identitydbContextTransaction.Commit();
       }
  }
  catch (Exception)
  {
        identitydbContextTransaction.Rollback();
  }
}

asp.net identity UserManager. , - , .