public JwtSecurityToken BuildToken(ClaimsIdentity identity)
{
var expires = _systemClock.UtcNow.UtcDateTime + _options.Value.TokenLifetime;
AuthenticationLogMessages.AuthenticationTokenBuilding(_logger, identity, expires);
var descriptor = new SecurityTokenDescriptor()
{
Subject = identity,
SigningCredentials = _signingCredentials,
Expires = expires
};
var token = _tokenHandler.CreateJwtSecurityToken(descriptor);
AuthenticationLogMessages.AuthenticationTokenBuilt(_logger, token);
return(token);
}