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JavaScript Function -For Google oAuth for login with google plus



Hello guys,

I have another code for authenticate user using google oAuth, and using google developer to get the application Id.

Login with Google Plus OAuth.


Step 1

Add or register your domain at click here.

Importing GMail Contacts Google OAuth Connect with PHP.

Step 2

Verify your domain ownership with HTML file upload or including META tag.

Importing GMail Contacts Google OAuth Connect with PHP.

Step 3

Google will provide you OAuth consumer key and OAuth consumer secret key. 
Importing GMail Contacts Google OAuth Connect with PHP. 

Step 4

Create client ID OAuth Console here.  

Login with Google Plus Oauth

Step 5

Create client ID.

Login with Google Plus OAuth.

Step 6

Here the application OAuth client ID and client secret.

Login with Google Plus OAuth. 
 //here we have java script code

<script >
          var loc = window.location.host;
          var OAUTHURL = 'https://accounts.google.com/o/oauth2/auth?';

          var VALIDURL = 'https://www.googleapis.com/oauth2/v1/tokeninfo?access_token=';

          var SCOPE = 'https://www.googleapis.com/auth/userinfo.profile https://www.googleapis.com/auth/userinfo.email';

//here you can use your own client Id that earlier you registered
          var CLIENTID = '*****************************';

          var REDIRECT = 'http://' + loc + '/edLoginpage.aspx';

          //var LOGOUT = 'http://accounts.google.com/Logout';

          var TYPE = 'token';

          var _url = OAUTHURL + 'scope=' + SCOPE + '&client_id=' + CLIENTID + '&redirect_uri=' + REDIRECT + '&response_type=' + TYPE;

          var acToken;

          var tokenType;

          var expiresIn;

          var user;

          var loggedIn = false;
//call this function onclick event of button in html
          function login() {
              var win = window.open(_url, "windowname1", 'width=800, height=600');
              var pollTimer = window.setInterval(function () {
                  try {
                      console.log(win.document.URL);
                      if (win.document.URL.indexOf(REDIRECT) != -1) {

                          window.clearInterval(pollTimer);
                          var url = win.document.URL;
                          win.close();
                          acToken = gup(url, 'access_token');
                          validateToken(acToken);
                      }

                  } catch (e) {

                  }

              }, 500);

          }

          function validateToken(token) {

              $.ajax({

                  url: VALIDURL + token,

                  data: null,

                  success: function (responseText) {

                      getUserInfo();
                      loggedIn = true;
                  },

                  dataType: "jsonp"

              });

          }
          function gup(url, name) {

              name = name.replace(/[\[]/, "\\\[").replace(/[\]]/, "\\\]");

              var regexS = "[\\#&]" + name + "=([^&#]*)";

              var regex = new RegExp(regexS);

              var results = regex.exec(url);

              if (results == null)

                  return "";

              else

                  return results[1];

          }
          function getUserInfo() {

              $.ajax({

                  url: 'https://www.googleapis.com/oauth2/v1/userinfo?access_token=' + acToken,
                  data: null,
                  success: function (resp) {
                      user = resp;
                      var name = user.name;
                      var r = splitUsername(name);
                      var SNfirstName = r.firstName;
                      var SNlastName = r.lastName;
                      var SNuserId = user.id;
                      var SNuserEmail = user.email;
                      var args = {
                          "SNfirstName": SNfirstName, "SNuserId": SNuserId, "SNlastName": SNlastName, "SNuserEmail": SNuserEmail
                      }

//use this information for manipulate for login or store this information in db

                  },

                  dataType: "jsonp"

              });

          }
</script>



//html code for button
you can use this button for login google plus

<li>
<a href="javascript:void(0);" class="btn btn-danger btn-circle"><i class="fa fa-google-plus fa-2x" onclick="login();"></i></a>
</li>

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