Google-OAuth2

is a library designed to make working with Google's Oauth2 API's more bearable.
taken from treygriffith

As of now, it only supports one API, contacts, out of the box, but adding additional API's, either on the fly or permanently, is quite easy.

USAGE

var oauth2 = new google_oauth2(MY_CLIENT_ID [, options]);

oauth2.authenticate(); //sends the user to the Google authorization endpoint

oauth2.authResponse(function(error, access_token) { //extract the access token
    if(access_token) {
        //execute some code here
    } else if(error) {
        //a response was attempted, but an error occurred
    } else {
        //there was nothing in the url fragment, in all likelihood, this was not a response to authentication
    }
});

oauth2.query(api [, options], function(error, results) {
    // execute some code on the returned values
});

google-oauther

clalimarmo

Simple Google OAuth2 module, for use in single page, client-side only applications. It opens a popup window to request permission, and stores the auth token returned by Google.

Usage

var authenticator = require('google-oauther');

authenticator.onAuthenticate(function(auth) {
  //stuff to do once the authenticator has authenticated user's profile info
  //(The auth parameter passed to the callback the authenticator, itself)
});

authenticator.run({
  scope: ['https://www.googleapis.com/auth/devstorage.read_write'],
  clientID: 'your-google-oauth2-client-id',
  tokenExpirationBuffer: 60000
});

Configuration

Required:

• scope - the permissions to request from google
• clientID - your google oauth2 client id

Optional:

• tokenExpirationBuffer - number of milliseconds before the token actually expires, after which the authenticator will consider the token expired. Useful for getting a token, or preventing users from attempting unauthenticated requests, before the token expires.

Methods

onAuthenticate

Specify behavior that should occur once the user grants the requested permissions. Do this before you call run

run

Requests authentication from the user, and whatever permissions you specify with the scope parameter.

user

Returns the user profile information gleaned from an authenticated request to https://www.googleapis.com/plus/v1/people/me

token

Returns the auth token. Useful for subsequent requests to other Google APIs.

reauthenticate

Does the same thing as run.

tokenIsExpired

Indicates whether the token is expired or not.

Notes

The authenticator always requests the 'profile' OAuth2 scope, in addition to whatever scopes are specified in the call to run.

For the popup window to send the auth token returned by google back to the main window, a global callback function is attached to the main window, called authenticatedWith. Including the google-oauther module will attach this callback function automatically; overwriting this function will break the authenticator.