public async Task <bool> HasOrderAsync(Guid customerId)
{
var models = await _store.GetAllAsync();
return(models.Any(model => model.CustomerId == customerId));
}
public async Task <IEnumerable <Guid> > GetShipmentsAsync(Guid customerId)
{
var models = await _store.GetAllAsync();
return(models.Select(model => model.Id));
}