Overview

JSON Web Tokens is an emerging standard. They are very close to their standardisation. IETF has taken care of that, and OpenID connect mandates the use of JSON Web token for all of the tokens that are exchanged in that protocol. this article gives you a little look, an overview of the purpose of security tokens, and, and what other types of tokens we have out there and where, where they are used. Then we have a look at the structure of a JSON Web Token, and then we’ll show you how easy it is to create and consume them using the Microsoft DotNet Core development framework.

Here is a simple REST Client talking to a stand along Server API all written in DotNet Core 3.1.

It is loosely based on creating a simple REST Client, an tutorial from Microsoft can give you the very basic features in DotNet Core

https://docs.microsoft.com/en-us/dotnet/csharp/tutorials/console-webapiclient

The new feature Async Streams in C# has removed the scalar result limitation and allows the async method to returns multiple results.

This change makes the async pattern more flexible so that you can retrieve data in lazy asynchronous sequence from a database or you can download data from an asynchronous sequence that returns the data in chunks when they become available.