node.js - How to implement OAuth to my Nodejs/Sails.js app? -

i have sails.js app generates api client. in order secure api need implement oauth2.0 sails app. have started follow tutorial: https://www.npmjs.com/package/sails-generate-auth#requirements

but kinds of diffrent errors when every time when try lift server. dont understand i'm suppose send credentials server , access token. i'm new sails.js , got know oauth , can't find proper guide on how implement oauth.

how can implement oauth app? please have detailed answer can understand.

update:

ok instead started follow guide: https://www.bearfruit.org/2014/07/21/tutorial-easy-authentication-for-sails-js-apps/ , think got work should(?) when register account saves data in database should. login seems work didn't understood how can access actuall data username , email address after login redirects me homepage? i've tested login on postman , when log in cookie. suppose it?

the authcontroller generated sails-generate-auth doesn't add user details session default should add manually adding following line callback function in authcontroller.js

req.session.user = user; 

this how callback looks line:

callback: function (req, res) { function tryagain (err) {    // error messages returned via req.flash('error', someerror)   // because shouldn't expose internal authorization errors user.   // return generic error , original request body.   var flasherror = req.flash('error')[0];    if (err && !flasherror ) {     req.flash('error', 'error.passport.generic');   } else if (flasherror) {     req.flash('error', flasherror);   }   req.flash('form', req.body);    // if error thrown, redirect user   // login, register or disconnect action initiator view.   // these views should take care of rendering error messages.   var action = req.param('action');    switch (action) {     case 'register':       res.redirect('/register');       break;     case 'disconnect':       res.redirect('back');       break;     default:       res.redirect('/login');   } }  passport.callback(req, res, function (err, user, challenges, statuses) {   if (err || !user) {     return tryagain(challenges);   }    req.login(user, function (err) {     if (err) {       return tryagain(err);     }      // mark session authenticated work default sails sessionauth.js policy     req.session.authenticated = true;      req.session.user = user;      // upon successful login, send user homepage req.user     // available.     res.redirect('/');   }); }); 

}

you can use user details in of controllers , views referring req.session.user example twitter provides user name can use req.session.user.username.