等待一个任务而不是其他任务可以吗？

Question

I have a following service method,

public async Task<IList<ProductsImage>> InsertAsync(BaseProduct product, Dictionary<string, Stream> images)
{
    try
    {
        if (images.Count > 0)
        {
            await _imageService.SaveAllAsync(images);
        }
        return await _repository.InsertAsync(product);
    }
    catch // Delete the files if there is an error from db
    {
        if (images.Count > 0)
        {
            var paths = images.Select(i => i.Key).ToList();
            _imageService.DeleteAllAsync(paths);                        
        }
        throw;
    }
}

The problem is that I don't want to await at _imageService.DeleteAllAsync because it takes some time to finish, so that I can transfer my execution without waiting. Is there any danger of not using await in _imageService.DeleteAllAsync

Answer 1

The right way is to send this message to a message queue so it can be processed asynchronously (without await) by an outside process. This way it will also guarantee that DeleteAllAsync will get called or retried if it fails.

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