NounProjectAPIV2.cs

// adapted from https://github.com/KaneQc/Noun-Project-API/blob/master/NounProjectAPI.cs
using RestSharp;
using RestSharp.Authenticators;
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
 
namespace Request
{
    class NounProjectAPI
    {
        void SimpleCall()
        {
            var baseUrl = new Uri("http://api.thenounproject.com");
            var client = new RestClient(baseUrl);
 
            client.Authenticator = OAuth1Authenticator.ForRequestToken("CLIENT_KEY_HERE", "CLIENT_SECRET_HERE");
 
            var request = new RestRequest("/v2/icon/1", Method.GET);
 
            IRestResponse response = client.Execute(request);
            var content = response.Content;
        }
    }
}