Passport-Google-Plus

Passport strategies for authenticating with the
Google+ Sign-In button.

This module lets you authenticate using Google in your Node.js applications.
By plugging into Passport, Google+ Sign-In can be easily and
unobtrusively integrated into any application or framework that supports
Connect-style middleware, including
Express.

Install

$ npm install passport-google-plus

Usage for Web Server-Side Flow

$3

In the Google Developers Console make sure you have enabled the Google Plus API, otherwise your calls will fail (seen in this issue).

#### Configure Strategy

The strategy accepts a callback which is called after the user has been authenticated. The
profile and OAuth credentials can be saved or mapped to a user record.

``js
var GooglePlusStrategy = require('passport-google-plus');

passport.use(new GooglePlusStrategy({
clientId: 'YOUR_CLIENT_ID',
clientSecret: 'YOUR_CLIENT_SECRET'
},
function(tokens, profile, done) {
// Create or update user, call done() when complete...
done(null, profile, tokens);
}
));
`

#### Configure Google+ Sign-In Button

`html



`

#### Handle the callback & forward the authorization code

`js
function signInCallback(authResult) {
if (authResult.code) {
$.post('/auth/google/callback', { code: authResult.code})
.done(function(data) {
$('#signinButton').hide();
});
} else if (authResult.error) {
console.log('There was an error: ' + authResult.error);
}
};
`

#### Authenticate Requests

Use passport.authenticate(), specifying the 'google' strategy, to
authenticate requests.

For example, as route middleware in an Express
application:

`js
app.post('/auth/google/callback', passport.authenticate('google'), function(req, res) {
// Return user back to client
res.send(req.user);
});
`

Usage for Web Client-Side Flow

Client-side flows are also supported for web & mobile using ID tokens. When using ID tokens, profile
data is limited to public information.

#### Configure Strategy

The strategy accepts a callback which is called after the user has been authenticated. The
profile and OAuth credentials can be saved or mapped to a user record.

`js
var GooglePlusStrategy = require('passport-google-plus');

passport.use(new GooglePlusStrategy({
clientId: 'YOUR_CLIENT_ID',
apiKey: 'YOUR_API_KEY'
},
function(tokens, profile, done) {
// Create or update user, call done() when complete...
done(null, profile, tokens);
}
));
`

#### Configure Google+ Sign-In Button

`html



`

#### Handle the callback & forward the identity token

`js
function signInCallback(authResult) {
if (authResult.code) {
$.post('/auth/google/callback', { id_token: authResult.id_token})
.done(function(data) {
$('#signinButton').hide();
});
} else if (authResult.error) {
console.log('There was an error: ' + authResult.error);
}
};
``