How to Handle Asynchronous Programming with Async/Await in C#?

 

This example fetches data from a URL asynchronously without blocking the main thread, demonstrating the use of async and await.

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using System;
using System.Net.Http;
using System.Threading.Tasks;

class Program
{
    static async Task Main(string[] args)
    {
        string url = "https://api.github.com/repos/dotnet/roslyn";
        string result = await FetchDataAsync(url);
        Console.WriteLine(result);
    }

    public static async Task<string> FetchDataAsync(string url)
    {
        using (HttpClient client = new HttpClient())
        {
            client.DefaultRequestHeaders.UserAgent.TryParseAdd("request");
            HttpResponseMessage response = await client.GetAsync(url);
            response.EnsureSuccessStatusCode();
            string responseBody = await response.Content.ReadAsStringAsync();
            return responseBody;
        }
    }
}