Where statement on a IAsyncEnumerable
If you would like to use a where statement on an IAsyncEnumerable like IAsyncEnumerable<company> companyAsyncEnum = _dataRepository.GetCampingsAsync(); var asyncFiltered = companyAsyncEnum.Where(c => c.Website != null && c.Website.Uri != null ); The following extension method will help you public static class AsyncFilterExtensions { public static async IAsyncEnumerable Where< C >( this IAsyncEnumerable asyncEnum, Func bool > filter) { await foreach (var item in asyncEnum) { if (filter(item)) yield return item; } } }