public async Task CreateAsync(AuthenticationTokenCreateContext context) { try { var clientid = context.Ticket.Properties.Dictionary["as:client_id"]; if (string.IsNullOrEmpty(clientid)) { return; } var refreshTokenId = Guid.NewGuid().ToString("n"); var refreshTokenLifeTime = context.OwinContext.Get<string>("as:clientRefreshTokenLifeTime"); var token = new RefreshToken() { Id = HashHelper.GetHash(refreshTokenId), ClientId = clientid, Subject = context.Ticket.Identity.Name, IssuedUtc = DateTime.UtcNow, ExpiresUtc = DateTime.UtcNow.AddMinutes(Convert.ToDouble(refreshTokenLifeTime)) }; context.Ticket.Properties.IssuedUtc = token.IssuedUtc; context.Ticket.Properties.ExpiresUtc = token.ExpiresUtc; token.ProtectedTicket = context.SerializeTicket(); bool result; using (AuthRepository authService = new AuthRepository()) { result = authService.AddRefreshToken(token); } if (result) { context.SetToken(refreshTokenId); } } catch (Exception ex) { Logger.Error("Error creating token: " + ex.InnerException); } }