javascript - Hitting Linkedin API using Meteor JS -

i stuck @ point. want hit linkedin api (without using package) , profile information of user.

so this, following these steps: 1. hit linkedin api authorization code 2. use auth code access token. 3. using access token profile info.

so far, being able authorization code, not being able proceed further. here codes:

these testing purpose doing on client.

my template

<template name="home">     <a href="#" class="calllinkedin">get profile linkedin</a>  </template> 

my helpers

var clientid='xxxxx'; var secret = 'xxxxx'; var redirecturi = 'http%3a%2f%2flocalhost%3a4000%2f_oauth%2flinkedin%3fclose'; var credentialtoken = "randomstring";   template.home.events({     'click .calllinkedin':function(event,template){         var scope = [];         var loginurl =             'https://www.linkedin.com/uas/oauth2/authorization' +             '?response_type=code' + '&client_id=' + clientid +             '&redirect_uri=' + redirecturi +             '&scope=' + scope + '&state=' + credentialtoken;          showpopup(loginurl,function(err){             if(err){                 console.log(err);             }             else{                 console.log('success');                 var params = {                     'grant_type':'authorization_code',                     'code':session.get('code'),                     'redirect_uri':redirecturi,                     'client_id':clientid,                     'client_secret':secret                 };                  http.call('post',"https://www.linkedin.com/uas/oauth2/accesstoken", {                         headers:{'content-type':'application/x-www-form-urlencoded'},                         params:params                     },                     function(err,res){                         if(err){                             console.log(err);                         }                         else{                             console.log(res);                         }                     });             }         })      } })  function showpopup(url, callback, dimensions) {                                                           var popup = opencenteredpopup(                                                                url,                                                                                      (dimensions && dimensions.width) || 650,                                                  (dimensions && dimensions.height) || 331                                              );                                                                                         var checkpopupopen = setinterval(function() {                                                 try {                                                                                         var popupclosed = popup.closed || popup.closed === undefined;                         } catch (e) {                                                                                 return;                                                                               }                                                                                          if (popupclosed) {             console.log(popup.document.url);             var url = popup.document.url;             var a1 = url.split('code=');             var a2 =a1[1].split('&');             session.set('code',a2[0]);             clearinterval(checkpopupopen);                                                           callback();                                                                          }                                                                                    }, 50);                                                                              }  function opencenteredpopup(url, width, height) {                                      var screenx = typeof window.screenx !== 'undefined'                                   ? window.screenx : window.screenleft;                                         var screeny = typeof window.screeny !== 'undefined'                                   ? window.screeny : window.screentop;                                          var outerwidth = typeof window.outerwidth !== 'undefined'                             ? window.outerwidth : document.body.clientwidth;                              var outerheight = typeof window.outerheight !== 'undefined'                           ? window.outerheight : (document.body.clientheight - 22);                                  var left = screenx + (outerwidth - width) / 2;                                    var top = screeny + (outerheight - height) / 2;                                   var features = ('width=' + width + ',height=' + height +                          ',left=' + left + ',top=' + top + ',scrollbars=yes');                       var newwindow = window.open(url, 'login', features);                      if (newwindow.focus)                                                          newwindow.focus();                                                    return newwindow;                                                     } 

i pop linkedin username , password. when give credentials , press "allow access", getting error in browser console.

post https://www.linkedin.com/uas/oauth2/accesstoken xmlhttprequest cannot load https://www.linkedin.com/uas/oauth2/accesstoken. no 'access-control-allow-origin' header present on requested resource. origin 'http:// localhost:4000' therefore not allowed access. response had http status code 400.

and in server, got unable parse state oauth query: dc8Ädf

since error says there no header called 'access-control-allow-origin', try adding header so:

http.call('post',   "https://www.linkedin.com/uas/oauth2/accesstoken", {     headers : {       'content-type':'application/x-www-form-urlencoded',        'access-control-allow-origin' : '*'       },     params : params   },   function(err,res){     if(err){       console.log(err);     }     else{       console.log(res);     }   }); 

try , let know if works