What tools or libraries have you used for implementing HTTP requests at your previous job?

To implement HTTP requests in C# at my previous job, I used the HttpClient class from the System.Net.Http namespace. It is a standard and convenient way to send asynchronous requests and receive responses.

Example of a simple GET request:

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

HttpClient client = new HttpClient();

async Task<string> GetDataAsync(string url)
{
    HttpResponseMessage response = await client.GetAsync(url);
    response.EnsureSuccessStatusCode();
    string responseBody = await response.Content.ReadAsStringAsync();
    return responseBody;
}

Additionally, for more complex scenarios, I used libraries like Refit (for declarative API description) and RestSharp, which simplify working with REST APIs.