How to create REST API with function name to pass one or more parameters

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C#

REST

API

Hi,
I am new to REST full Api, i want to create GET method to pass one or two parameters, and return value as json format. Need to create in VB or C#.

What I have tried:

I try to create in C#, but url without function name, i call controller and pass parameter, but i want to call with function and pass parameter.

Below that controller code which i used

using System;
using System.Collections.Generic;
using System.Linq;
using System.Net;
using System.Net.Http;
using System.Web.Http;

namespace WebApi2.Controller
{
    public class HelloController : ApiController
    {
        public string Get(int id)
        {

            if (id == 1)
            {
                return "Hello";

            }

            else {
                return "Hello World";
            }
           
        }
    }
}

And url is https://localhost:44300/api/hello/id=1

And i tested with PostMan Agent , it works, but if i call that rest api with my code using Chilkat i will get error. Is it deploy in server ? using localhost will not work ?

Regards
AravindB