Is it possible to transform an IObservable to an IAsyncEnumerable

Question

I have an observable IObservable<T> / ISubject<T> and want to return that by using SignalR. SignalR has the concept of async streams where you have to return an IAsyncEnumerable<T>.

How can I transform an IObservable<T> to an IAsyncEnumerable<T>?

Answer 1

There is a ToAsyncEnumerable extension method in the System.Linq.Async assembly, available as a NuGet package here.

public static IAsyncEnumerable<TSource> ToAsyncEnumerable<TSource>(
    this IObservable<TSource> source);