passport-twitch

Twitch is a trademark or registered trademark of Twitch Interactive, Inc. in the U.S. and/or other countries. "passport-twitch" is not operated by, sponsored by, or affiliated with Twitch Interactive, Inc. in any way.

Passport strategies for authenticating with Twitch using OAuth 2.0 on the New Twitch API.

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

Install

$ npm install passport-twitch-new

Usage of OAuth 2.0

Configure Strategy

The Twitch OAuth 2.0 authentication strategy authenticates users using a Twitch account and OAuth 2.0 tokens. The strategy requires a verify callback, which accepts these credentials and calls done providing a user, as well as options specifying a client ID, client secret, and callback URL.

var passport       = require("passport");
var twitchStrategy = require("passport-twitch-new").Strategy;

passport.use(new twitchStrategy({
    clientID: TWITCH_CLIENT_ID,
    clientSecret: TWITCH_CLIENT_SECRET,
    callbackURL: "http://127.0.0.1:3000/auth/twitch/callback",
    scope: "user_read"
  },
  function(accessToken, refreshToken, profile, done) {
    User.findOrCreate({ twitchId: profile.id }, function (err, user) {
      return done(err, user);
    });
  }
));

Authenticate Requests

Use passport.authenticate(), specifying the "twitch" strategy, to authenticate requests.

For example, as route middleware in an Express application:

app.get("/auth/twitch", passport.authenticate("twitch"));
app.get("/auth/twitch/callback", passport.authenticate("twitch", { failureRedirect: "/" }), function(req, res) {
    // Successful authentication, redirect home.
    res.redirect("/");
});

Optionally, the forceVerify option can be set to true to indicate that the user should be re-prompted for authorization:

app.get("/auth/twitch", passport.authenticate("twitch", {forceVerify: true}));

Example

var express        = require("express");
var bodyParser     = require("body-parser");
var cookieParser   = require("cookie-parser");
var cookieSession  = require("cookie-session");
var passport       = require("passport");
var twitchStrategy = require("passport-twitch").Strategy;

var app = express();

app.set("views", "./views");
app.set("view engine", "ejs");

// Middlewares
app.use(bodyParser.urlencoded({ extended: true }));
app.use(cookieParser());
app.use(cookieSession({secret:"somesecrettokenhere"}));
app.use(passport.initialize());
app.use(express.static("./public"));

passport.use(new twitchStrategy({
    clientID: "098f6bcd4621d373cade4e832627b4f6",
    clientSecret: "4eb20288afaed97e82bde371260db8d8",
    callbackURL: "http://127.0.0.1:3000/auth/twitch/callback",
    scope: "user_read"
  },
  function(accessToken, refreshToken, profile, done) {
    // Suppose we are using mongo..
    User.findOrCreate({ twitchId: profile.id }, function (err, user) {
      return done(err, user);
    });
  }
));

passport.serializeUser(function(user, done) {
    done(null, user);
});

passport.deserializeUser(function(user, done) {
    done(null, user);
});

app.get("/", function (req, res) {
    res.render("index");
});

app.get("/auth/twitch", passport.authenticate("twitch"));
app.get("/auth/twitch/callback", passport.authenticate("twitch", { failureRedirect: "/" }), function(req, res) {
    // Successful authentication, redirect home.
    res.redirect("/");
});

app.listen(3000);

License

The MIT License (MIT)

Full text in LICENSE file