public async Task <Guid> RegisterUser(Commands.RegisterUser command)
{
// Check if user already exists
var existingUser = await _queryModelRepository.QueryItem <UserQueryModel>(x => x.DisplayName == $"{command.FirstName} {command.LastName}");
if (existingUser != null)
{
return(existingUser.id);
}
// Create aggregate
var newUserId = Guid.NewGuid();
var user = new User(newUserId);
// Create domain command
var domainCommand = new Core.Commands.RegisterUser(
command.FirstName,
command.LastName);
// Fire command and wait for status response
user.Tell(domainCommand);
// Save User aggregate
// Note: This saves the events published internally by the User Aggregate)
await _aggregateStore.Save(user);
return(newUserId);
}
public async Task Run()
{
// Create sample application command
var registerUser = new Application.Commands.RegisterUser(firstName: "Donald", lastName: "Duck");
// Invoke sample application service
var userId = await UserApplicationService.RegisterUser(registerUser);
// Wait one second for the Read model to be updated.
// This is much, much more than usually needed.
Thread.Sleep(1000);
// Get the query model
UserQueryModel queryModel = await UserProjection.QueryById(userId);
Console.WriteLine($"Query models Display Name: {queryModel.DisplayName}");
Console.WriteLine("Press any key to exit...");
Console.ReadKey();
}