using System;using System.Collections.Generic;using System.Linq;using System.Text;using System.Threading.Tasks;using JWT;using JWT.Algorithms;using JWT.Serializers;namespace JWTConsole{    class Program    {        static void Main(string[] args)        {            var payload = new Dictionary
     
      {                { "claim1", 0 },                { "claim2", "claim2-value" }            };            var secret = "GQDstcKsx0NHjPOuXOYg5MbeJ1XT0uFiwDVvVBrk";            IJwtAlgorithm algorithm = new HMACSHA256Algorithm();            IJsonSerializer serializer = new JsonNetSerializer();            IBase64UrlEncoder urlEncoder = new JwtBase64UrlEncoder();            IJwtEncoder encoder = new JwtEncoder(algorithm, serializer, urlEncoder);            var token = encoder.Encode(payload, secret);            Console.WriteLine(token);            IDateTimeProvider provider = new UtcDateTimeProvider();            IJwtValidator validator = new JwtValidator(serializer, provider);            IJwtDecoder decoder = new JwtDecoder(serializer, validator, urlEncoder);            try            {                //IDateTimeProvider provider = new UtcDateTimeProvider();                //IJwtValidator validator = new JwtValidator(serializer, provider);                //IJwtDecoder decoder = new JwtDecoder(serializer, validator, urlEncoder);                var json = decoder.Decode(token, secret, verify: true);                Console.WriteLine(json);            }            catch (TokenExpiredException)            {                Console.WriteLine("Token has expired");            }            catch (SignatureVerificationException)            {                Console.WriteLine("Token has invalid signature");            }            var now = provider.GetNow().AddMinutes(1);            var unixEpoch = new DateTime(1970, 1, 1, 0, 0, 0, DateTimeKind.Utc); // or use JwtValidator.UnixEpoch            var secondsSinceEpoch = Math.Round((now - unixEpoch).TotalSeconds);            payload = new Dictionary
      
       {                    { "exp", secondsSinceEpoch }            };            token = encoder.Encode(payload, secret);            var json0 = decoder.Decode(token, secret,verify: true); // TokenExpiredException            Console.WriteLine(json0);        }    }}