public async Task <ValidationResult> ValidateAsync(IClient client)
{
// 1. Validate client
var clientTask = _clientValidator.ValidateAsync(client);
// 2. Validate Contact Information
var tasks = client.Contacts?.Select(c => _contactApplicationService.ValidateAsync(c));
var contactTask = tasks == null?Task.FromResult(new ValidationResult[0]) : Task.WhenAll(tasks);
// 3. Validate Address Information
var addressTask = _addressApplicationService.ValidateAsync(client.Address);
await Task.WhenAll(clientTask, contactTask, addressTask);
// Get all errors if any
var validationResult = clientTask.Result
.From(contactTask.Result?.SelectMany(r => r.Errors).ToList())
.From(addressTask.Result?.Errors);
return(validationResult);
}
