using System;

using System.Collections.Generic;

using System.IdentityModel.Tokens.Jwt;

using System.Linq;

using System.Security.Claims;

using System.Text;

using Microsoft.Extensions.Options;

using Microsoft.IdentityModel.Tokens;

public class Program

{

    public static void Main()

    {

        var tokenHandler = new JwtSecurityTokenHandler();

        var key = Encoding.ASCII.GetBytes("secretlhfIH&FY*#oysuflkhskjfhefesf");

        var tokenDescriptor = new SecurityTokenDescriptor

        {

            Subject = new ClaimsIdentity(new Claim[]

            {

                new Claim(ClaimTypes.Name, "0")

            }),

            Expires = DateTime.UtcNow.AddDays(7),

            SigningCredentials = new SigningCredentials(new SymmetricSecurityKey(key), SecurityAlgorithms.HmacSha256Signature)

        };

        var token = tokenHandler.CreateToken(tokenDescriptor);

        Console.WriteLine(token);

        Console.WriteLine(tokenHandler.WriteToken(token));

    }

}