public JwtSecurityToken GenerateToken(IUserRepository repository, User user)
{
var key = new SymmetricSecurityKey(Encoding.UTF8.GetBytes(MyConfig.Get("jwt:SecretKey")));
var creds = new SigningCredentials(key, SecurityAlgorithms.HmacSha256);
var expires = DateTime.Now.AddDays(Convert.ToDouble(MyConfig.Get("jwt:ExpireDays")));
List <Role> roles = repository.GetRolesOfUser(user.Id).ToList();
// Create the JWT security token and encode it.
var token = new JwtSecurityToken(
issuer: MyConfig.Get("jwt:Issuer"),
audience: MyConfig.Get("jwt:Audience"),
claims: GetValidClaims(user, roles),
expires: expires,
signingCredentials: creds);
return(token);
}