private async Task <string> GenerateRefreshToken(Guid userId)
{
await _refreshTokenRepository.DeleteExpired(userId);
var randomNumber = new byte[256];
using (var rng = RandomNumberGenerator.Create())
{
rng.GetBytes(randomNumber);
var token = Convert.ToBase64String(randomNumber);
_refreshTokenRepository.Create(new RefreshToken
{
UserId = userId,
Value = token,
ExpirationDate = DateTime.Now.AddDays(14)
});
await _refreshTokenRepository.SaveChanges();
return(token);
}
}