Passport strategy for Google OAuth 2.0
npm install passport-google-oauth2Passport strategies for authenticating with Google
using ONLY OAuth 2.0.
This module lets you authenticate using Google in your Node.js applications.
By plugging into Passport, Google authentication can be easily and
unobtrusively integrated into any application or framework that supports
Connect-style middleware, including
Express.
$ npm install passport-google-oauth2
#### Configure Strategy
The Google OAuth 2.0 authentication strategy authenticates users using a Google
account and OAuth 2.0 tokens. The strategy requires a verify callback, which
accepts these credentials and calls done providing a user, as well asoptions specifying a client ID, client secret, and callback URL.
``Javascript
var GoogleStrategy = require( 'passport-google-oauth2' ).Strategy;
passport.use(new GoogleStrategy({
clientID: GOOGLE_CLIENT_ID,
clientSecret: GOOGLE_CLIENT_SECRET,
callbackURL: "http://yourdomain:3000/auth/google/callback",
passReqToCallback : true
},
function(request, accessToken, refreshToken, profile, done) {
User.findOrCreate({ googleId: profile.id }, function (err, user) {
return done(err, user);
});
}
));
`
#### Note about Local environment
Avoid usage of Private IP, otherwise you will get the device_id device_name issue for Private IP during authentication.
A workaround consist to set up thru the google cloud console a fully qualified domain name such as http://mydomain:3000/ for the callback
then edit your /etc/hosts on your computer and/or vm to point on your private IP.
Also both sign-in button + callbackURL has to be share the same url, otherwise two cookies will be created and it will lead to lost your session
#### Authenticate Requests
Use passport.authenticate(), specifying the 'google' strategy, to
authenticate requests.
For example, as route middleware in an Express
application:
`Javascript
app.get('/auth/google',
passport.authenticate('google', { scope:
[ 'email', 'profile' ] }
));
app.get( '/auth/google/callback',
passport.authenticate( 'google', {
successRedirect: '/auth/google/success',
failureRedirect: '/auth/google/failure'
}));
`
#### What you will get in profile response ?
`
provider always set to
id
name
displayName
birthday
relationship
isPerson
isPlusUser
placesLived
language
emails
gender
picture
coverPhoto
For a complete, working example, refer to the OAuth 2.0 example.
Copyright (c) 2012-2013 Jared Hanson <http://jaredhanson.net/>