public static string RefeshToken(this JwtSecurityToken jwt) { if (DictionaryToken.Any(n => n.Key.Equals(jwt.Subject, StringComparison.OrdinalIgnoreCase)) && jwt.ValidTo > DateTime.UtcNow) { jwt = new JwtSecurityToken( issuer: JwtOptions().Value.Issuer, audience: JwtOptions().Value.Audience, claims: jwt.Claims, notBefore: DateTime.UtcNow, expires: DateTime.UtcNow.Add(JwtOptions().Value.Expiration), signingCredentials: JwtOptions().Value.SigningCredentials); return(DictionaryToken[jwt.Subject] = new JwtSecurityTokenHandler().WriteToken(jwt)); } //Token Expirated if (DictionaryToken.Any(n => n.Key.Equals(jwt.Subject, StringComparison.OrdinalIgnoreCase))) { DictionaryToken.Remove(DictionaryToken.FirstOrDefault(n => n.Key.Equals(jwt.Subject, StringComparison.OrdinalIgnoreCase)).Key); } return(null); }