private JObject GenerateAccessTokenResponse(User user)
{
var tokenExpiration = TimeSpan.FromDays(1);
AuthenticationTicket ticket = ApplicationOAuthProvider.GenerateAuthenticationTicket(user, this.UserManager);
var accessToken = Startup.OAuthOptions.AccessTokenFormat.Protect(ticket);
JObject tokenResponse = new JObject(
new JProperty("userName", user.UserName),
new JProperty("access_token", accessToken),
new JProperty("token_type", "bearer"),
new JProperty("expires_in", tokenExpiration.TotalSeconds.ToString()),
new JProperty(".issued", ticket.Properties.IssuedUtc.ToString()),
new JProperty(".expires", ticket.Properties.ExpiresUtc.ToString())
);
return(tokenResponse);
}