how to create a token and then after authorize person access

Question

now when I click on the send button of postman then direct access the index method that is issue I want to generate a token and then after authorize person access that method

 

 

 

 staticvariable.cs

public static class staticvariable
 {
     public static HttpClient webapiclient = new HttpClient();

     static staticvariable()
     {
         webapiclient.BaseAddress = new Uri("http://localhost:5718/api/");
         webapiclient.DefaultRequestHeaders.Clear();
         webapiclient.DefaultRequestHeaders.Accept.Add(new MediaTypeWithQualityHeaderValue("application/json"));
     }
 }

studController.cs

public class studController : Controller
{
     // GET: Home
     public JsonResult Index()
     {
         IEnumerable<student> studlist;
         HttpResponseMessage response = staticvariable.webapiclient.GetAsync("stud").Result;
         studlist = response.Content.ReadAsAsync<IEnumerable<student>>().Result;
         return Json(studlist,JsonRequestBehavior.AllowGet);
     }
}

what i want to the

when click on the send button of the postman then after generate the token means authoriz person can access that index method

 

help?