using System;

using System.Collections.Generic;

using System.IdentityModel.Tokens.Jwt;

using System.Linq;

using System.Security.Claims;

using System.Text;

using Microsoft.IdentityModel.Tokens;

​

public class Program

{

    public static void Main()

    {

    // Replace with your actual key

            var key = Encoding.ASCII.GetBytes("your_secret_key_here");

            var username = "testuser"; // Replace with the desired username

​

            // Generate the JWT token

            var tokenHandler = new JwtSecurityTokenHandler();

            var tokenDescriptor = new SecurityTokenDescriptor

            {

                Subject = new ClaimsIdentity(new Claim[] { new Claim(ClaimTypes.Name, username) }),

                Expires = DateTime.UtcNow.AddDays(7),

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

            };

            var token = tokenHandler.CreateToken(tokenDescriptor);

            var tokenString = tokenHandler.WriteToken(token);

​

            // Output the generated token

            Console.WriteLine("Generated JWT Token:");

            Console.WriteLine(tokenString);

​

    }

}