@incdevco/framework/google/auth/index.js

node.js lambda framework

var GoogleAuth = require('google-auth-library');
var Promise = require('bluebird');

module.exports.verifyIdToken = function (token, clientId, clientSecret, redirectUri) {
  
  clientSecret = clientSecret || '';
  
  redirectUri = redirectUri || '';
  
  var auth = new GoogleAuth();
  
  var client = new auth.OAuth2(clientId, clientSecret, redirectUri);
  
  return new Promise(function (resolve, reject) {
    
    client.verifyIdToken(token, clientId, function (exception, login) {
      
      if (exception) {
        
        return reject(exception);
        
      } else {
        
        return resolve(login.getPayload());
        
      }
      
    });
    
  });
  
};