C# 8 Feature - Async Streams

One of the features introduced in C# 8 is called async streams. Async streams allow you to use the await keyword with an IAsyncEnumerable<T> in a foreach loop, making it easy to asynchronously iterate over a sequence of values.

Side note: I work for HealthPlanOne , selling medicare plans through agents like Jim Hamm . My code examples will be with insurance entities.

Here is an example of how you might use async streams to asynchronously retrieve a sequence of Medicare plan entities from a database:

To use async streams, you will need to use the yield return statement to yield each value in the sequence, and mark the method with the async keyword (as shown in the example above).

You can then use the GetMedicarePlansAsync method to asynchronously iterate over the sequence of Medicare plan entities like this:

The await foreach syntax allows you to asynchronously iterate over the sequence of Medicare plan entities and await the completion of each iteration. This can be more efficient than using a traditional foreach loop, because it allows the program to perform other tasks while waiting for the next value in the sequence to be retrieved. I also believe it can make your code easier to read and maintain.