Google ID token authentication strategy for Passport and Node.js.
This module lets you authenticate using Google ID tokens in your Node.js applications. This is useful for scenarios where we don't want to perform API calls to Google on behalf of the client, but we only want to authenticate it to our server. In short, we only validate the identity of the user by token verification, so there is no server-side OAuth operation.
Official Google documentation:
$ npm install passport-google-oidc-token
The strategy requires a verify callback which accepts the id_token coming from the user to be authenticated, and then calls the done callback.
The strategy also requires the Google client ID(s) inside the passed options.
const GoogleTokenStrategy = require('passport-google-oidc-token');
passport.use(
new GoogleTokenStrategy(
{
clientID: GOOGLE_CLIENT_ID,
},
function (parsedToken, googleId, done) {
User.findOrCreate({ googleId: googleId }, function (err, user) {
return done(err, user);
});
},
),
);Use passport.authenticate(), specifying the 'google-oidc-token' strategy, to authenticate requests.
app.post(
'/auth/google',
passport.authenticate('google-oidc-token'),
function (req, res) {
// do something with req.user
res.send(req.user ? 200 : 401);
},
);The post request to this route should include a JSON object with the key id_token set to the one the client received from Google (e.g. after successful Google+ sign-in).
(The MIT License)
Copyright (c) 2022 Chris Edson
Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the "Software"), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions:
The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software.
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