using System.Net.Http.Headers;

using System.Net.Http.Json;

 using System.Net.Http;

using System.Threading;

using System.Threading.Tasks;

using System;

​

string[] userHandlers = new []

{

    "users/okyrylchuk",

    "users/shanselman",

    "users/jaredpar",

    "users/davidfowl"

};

using HttpClient client = new()

{

    BaseAddress = new Uri("https://api.github.com"),

};

client.DefaultRequestHeaders.UserAgent.Add(new ProductInfoHeaderValue("DotNet", "6"));

ParallelOptions parallelOptions = new()

{

    MaxDegreeOfParallelism = 3

};

await Parallel.ForEachAsync(userHandlers, parallelOptions, async (uri, token) =>

{

    var user = await client.GetFromJsonAsync<GitHubUser>(uri, token);

    Console.WriteLine($"Name: {user.Name}\nBio: {user.Bio}\n");

});

public class GitHubUser

{

    public string Name { get; set; }

    public string  Bio { get; set; }

}