Consume Web API Get Method Using C#

public class TestController: ApiController { 
    public List < string > GetTrafficSignalColor() { 
        return new List < string > () { 
            "Red", 
            "Green", 
            "Orange" 
        }; 
    } 
} 

using(var client = new WebClient()) { 
    client.Headers["request-type"] = "application/json"; 
    string result = client.DownloadString("http://localhost:19800/api/Test"); 
    Console.WriteLine(result); 
    Console.ReadLine(); 
} 

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