passport-slack

Passport strategy for authenticating with Slack using the OAuth 2.0 API.

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

Install

$ npm install passport-slack-ponycode

Usage

Configure Strategy

The Slack authentication strategy authenticates users using a Slack account and OAuth tokens. The strategy requires a verify callback, which receives the access token and corresponding secret as arguments, as well as user which contains the authenticated user's slack info. The verify callback must call done providing a user to complete authentication.

In order to identify your application to Slack, specify the clientID, clientSecret, and redirect URL within options. The client ID and secret are obtained by creating an application at Slacks's api site.

var SlackStrategy = require('./passport-slack').SlackStrategy;
passport.use( 'slack', new SlackStrategy({
    clientID: "[slack client id]",
    clientSecret:"[slack client secret]",
    callbackURL: "[host]/authenticate/callback",
    slackTeam: "[optional slack team id to force joining a team]"
}, function( token, tokenSecret, profile, done ){

    // This is your chance to find a User in your database.
    var User = neoteric.model('User');
    User.findBySlackId( profile.id, function( error, existingUser ){
        if( error ) return done( error, false );

        if( existingUser ){
            done( error, existingUser );
        }else{
            var newUser = new User();
            newUser.username = parsedBody.user;
            newUser.slackId = slackId;
            newUser.save( function( error, newUser ){
                done( error, newUser );
            });
        }
    });

}));

Authenticate Requests

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

For example, as route middleware in an Express application:

app.get('/auth/slack',
  passport.authenticate('slack'));

app.get('/auth/slack/callback',
  passport.authenticate('slack', { team: "[slack team id]" failureRedirect: '/login' }),
  function(req, res) {
    // Successful authentication, redirect home.
    res.redirect('/');
  });

Credits

• Josh Kennedy

License

The MIT License

Copyright (c) 2014 Josh Kennedy <http://ponycode.com/>