passport-access-token

Passport strategy for authenticating with an access token.

This module lets you authenticate using an access token in your Node.js applications. By plugging into Passport, token based authentication can be easily and unobtrusively integrated into any application or framework that supports Connect-style middleware, including Express.

This can easily be used to create a password reset mechanism by providing the user with a link containing an access token that is then instantaneously revoked as soon as she sets a new password.

Install

$ npm install passport-access-token --save

Usage

Configure Strategy

The local authentication strategy authenticates users using an access token. The strategy requires a verify callback, which accepts these credentials and calls done providing a user.

const AccessTokenStrategy = require('passport-access-token').Strategy
passport.use(new AccessTokenStrategy({
    tokenParam: 'token'
  }, (token, done) => {
    User.findOne({ onetimePassword: token }, (err, user) => {
      if (err) { return done(err); }
      if (!user) { return done(null, false); }
      // delete the onetimePassword after the user has set the new password
      return done(null, user);
    });
  }
));

Options

The access token can be stored in three different locations which are configured as follows:

• Inside the url the HTTP GET parameter is specified using the tokenParam option (default: 'token')
• As a HTTP HEADER field which is specified using the tokenHeader option (default: 'accessToken')
• In the payload of a HTTP POST request where the field name is specified using the tokenField option (default: 'Authorization')
• If none of the above methods suits your purposes there is also the extractor option that can be supplied with a function of the signature function (req) {...} which returns the access token retrieved by some custom code from the HTTP request (default: undefined)

Authenticate Requests

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

For example, as route middleware in an Express application:

app.get('/login/:token', 
  passport.authenticate('token', { failureRedirect: '/login' }),
  (req, res) => {
    res.redirect('/');
  });

Credits

• Jared Hanson

License

The MIT License

Copyright (c) 2015 Christian Vaas