koa-grant: How to get the user info from session

[zhiyelee]

I want to find a way to get the user info from the session after login.

For example:

// suppose user have login
router.get('/demo', function *(next) {
  if (!this.session.grant) {
    this.redirect('/login');
  } else {
   // get the user info from DB which I saved after user login successfully,
   //    eg, saved  in `/hanlde_provider_callback
    user = yield getUserInfo(this.session.grant.userId);
  }
}

Seems I can't add a new property to session in the /handle_provider_callback, so I don't how to connect the special session with the db item (I want to store users in my db). Do you have any idea?

Thank you.

[simov]

I'm not sure that I understand your exact scenario, but here is what you can do - just store the access token somewhere in your database and link it to your user data.

[zhiyelee]

@simov thank you.

What i want to do is, eg

• user login with a provider, like github
• /connect/github/callback // seems grant set session here.
• /handle_github_callback // I want to fetch and store user info here, for example link session with access token.

After the above step, the login user access /demo page, then how can I get the user info from DB, as far as i known, the this.session only contains

{ 
  grant: { 
    provider: 'github',
    dynamic: {} 
  } 
}

That means i can't find current users access token or any other useful information besides provider.

Maybe a stupid question, thank you for your time.

[simov]

By default Grant returns the result data from the OAuth flow as a querystring, that's why you see only a meta data in the session that's used internally by Grant during the OAuth flow.

If you want the result data returned in the session instead, you have to set transport:'session' under the server key in your configuration, take a look at the configuration docs

Let me know if that solves your problem.

[zhiyelee]

@simov That make sense to me. Thank you a lot!!