simple code to call rest api c#

using System;
using System.Collections.Generic;
using System.Net.Http;
using System.Net.Http.Headers; 

namespace ConsoleProgram
{
    public class DataObject
    {
        public string Name { get; set; }
    }

    public class Class1
    {
        private const string URL = "https://sub.domain.com/objects.json";
        private string urlParameters = "?api_key=123";

        static void Main(string[] args)
        {
            HttpClient client = new HttpClient();
            client.BaseAddress = new Uri(URL);

            // Add an Accept header for JSON format.
            client.DefaultRequestHeaders.Accept.Add(
            new MediaTypeWithQualityHeaderValue("application/json"));

            // List data response.
            HttpResponseMessage response = client.GetAsync(urlParameters).Result;  // Blocking call! Program will wait here until a response is received or a timeout occurs.
            if (response.IsSuccessStatusCode)
            {
                // Parse the response body.
                var dataObjects = response.Content.ReadAsAsync<IEnumerable<DataObject>>().Result;  //Make sure to add a reference to System.Net.Http.Formatting.dll
                foreach (var d in dataObjects)
                {
                    Console.WriteLine("{0}", d.Name);
                }
            }
            else
            {
                Console.WriteLine("{0} ({1})", (int)response.StatusCode, response.ReasonPhrase);
            }

            //Make any other calls using HttpClient here.

            //Dispose once all HttpClient calls are complete. This is not necessary if the containing object will be disposed of; for example in this case the HttpClient instance will be disposed automatically when the application terminates so the following call is superfluous.
            client.Dispose();
        }
    }
}

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Tvsjhuser 110 points

                                    namespace RestSharpThingy
{
    using System;
    using System.Collections.Generic;
    using System.IO;
    using System.Linq;
    using System.Net;
    using System.Reflection;

    using RestSharp;

    public static class Program
    {
        public static void Main()
        {
            Uri baseUrl = new Uri(&quot;https://httpbin.org/&quot;);
            IRestClient client = new RestClient(baseUrl);
            IRestRequest request = new RestRequest(&quot;get&quot;, Method.GET) { Credentials = new NetworkCredential(&quot;testUser&quot;, &quot;P455w0rd&quot;) };

            request.AddHeader(&quot;Authorization&quot;, &quot;Bearer qaPmk9Vw8o7r7UOiX-3b-8Z_6r3w0Iu2pecwJ3x7CngjPp2fN3c61Q_5VU3y0rc-vPpkTKuaOI2eRs3bMyA5ucKKzY1thMFoM0wjnReEYeMGyq3JfZ-OIko1if3NmIj79ZSpNotLL2734ts2jGBjw8-uUgKet7jQAaq-qf5aIDwzUo0bnGosEj_UkFxiJKXPPlF2L4iNJSlBqRYrhw08RK1SzB4tf18Airb80WVy1Kewx2NGq5zCC-SCzvJW-mlOtjIDBAQ5intqaRkwRaSyjJ_MagxJF_CLc4BNUYC3hC2ejQDoTE6HYMWMcg0mbyWghMFpOw3gqyfAGjr6LPJcIly__aJ5__iyt-BTkOnMpDAZLTjzx4qDHMPWeND-TlzKWXjVb5yMv5Q6Jg6UmETWbuxyTdvGTJFzanUg1HWzPr7gSs6GLEv9VDTMiC8a5sNcGyLcHBIJo8mErrZrIssHvbT8ZUPWtyJaujKvdgazqsrad9CO3iRsZWQJ3lpvdQwucCsyjoRVoj_mXYhz3JK3wfOjLff16Gy1NLbj4gmOhBBRb8rJnUXnP7rBHs00FAk59BIpKLIPIyMgYBApDCut8V55AgXtGs4MgFFiJKbuaKxq8cdMYEVBTzDJ-S1IR5d6eiTGusD5aFlUkAs9NV_nFw&quot;);
            request.AddParameter(&quot;clientId&quot;, 123);

            IRestResponse&lt;RootObject&gt; response = client.Execute&lt;RootObject&gt;(request);

            if (response.IsSuccessful)
            {
                response.Data.Write();
            }
            else
            {
                Console.WriteLine(response.ErrorMessage);
            }

            Console.WriteLine();

            string path = Assembly.GetExecutingAssembly().Location;
            string name = Path.GetFileName(path);

            request = new RestRequest(&quot;post&quot;, Method.POST);
            request.AddFile(name, File.ReadAllBytes(path), name, &quot;application/octet-stream&quot;);
            response = client.Execute&lt;RootObject&gt;(request);
            if (response.IsSuccessful)
            {
                response.Data.Write();
            }
            else
            {
                Console.WriteLine(response.ErrorMessage);
            }

            Console.ReadLine();
        }

        private static void Write(this RootObject rootObject)
        {
            Console.WriteLine(&quot;clientId: &quot; + rootObject.args.clientId);
            Console.WriteLine(&quot;Accept: &quot; + rootObject.headers.Accept);
            Console.WriteLine(&quot;AcceptEncoding: &quot; + rootObject.headers.AcceptEncoding);
            Console.WriteLine(&quot;AcceptLanguage: &quot; + rootObject.headers.AcceptLanguage);
            Console.WriteLine(&quot;Authorization: &quot; + rootObject.headers.Authorization);
            Console.WriteLine(&quot;Connection: &quot; + rootObject.headers.Connection);
            Console.WriteLine(&quot;Dnt: &quot; + rootObject.headers.Dnt);
            Console.WriteLine(&quot;Host: &quot; + rootObject.headers.Host);
            Console.WriteLine(&quot;Origin: &quot; + rootObject.headers.Origin);
            Console.WriteLine(&quot;Referer: &quot; + rootObject.headers.Referer);
            Console.WriteLine(&quot;UserAgent: &quot; + rootObject.headers.UserAgent);
            Console.WriteLine(&quot;origin: &quot; + rootObject.origin);
            Console.WriteLine(&quot;url: &quot; + rootObject.url);
            Console.WriteLine(&quot;data: &quot; + rootObject.data);
            Console.WriteLine(&quot;files: &quot;);
            foreach (KeyValuePair&lt;string, string&gt; kvp in rootObject.files ?? Enumerable.Empty&lt;KeyValuePair&lt;string, string&gt;&gt;())
            {
                Console.WriteLine(&quot;\t&quot; + kvp.Key + &quot;: &quot; + kvp.Value);
            }
        }
    }

    public class Args
    {
        public string clientId { get; set; }
    }

    public class Headers
    {
        public string Accept { get; set; }

        public string AcceptEncoding { get; set; }

        public string AcceptLanguage { get; set; }

        public string Authorization { get; set; }

        public string Connection { get; set; }

        public string Dnt { get; set; }

        public string Host { get; set; }

        public string Origin { get; set; }

        public string Referer { get; set; }

        public string UserAgent { get; set; }
    }

    public class RootObject
    {
        public Args args { get; set; }

        public Headers headers { get; set; }

        public string origin { get; set; }

        public string url { get; set; }

        public string data { get; set; }

        public Dictionary&lt;string, string&gt; files { get; set; }
    }
}

Thank you! 8