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slackin

A little server that enables public access to a Slack server. Like Freenode, but on Slack.

It provides

  • A landing page you can point users to fill in their emails and receive an invite (http://slack.yourdomain.com)
  • An <iframe> badge to embed on any website that shows connected users in realtime with socket.io.
  • A SVG badge that works well from static mediums (like GitHub README pages)

Read more about the motivations and history behind Slackin.

How to use

Server

Deploy

Or install it and launch it on your sever:

$ npm install -g slackin
$ slackin "your-slack-subdomain" "your-slack-token"

You can find your API token at api.slack.com/web.

The available options are:

Usage: slackin [options] <slack-subdomain> <api-token>

Options:

  -h, --help            output usage information
  -V, --version         output the version number
  -p, --port <port>     Port to listen on [$PORT or 3000]
  -c, --channel <chan>  Single channel guest invite [$SLACK_CHANNEL]
  -i, --interval <int>  How frequently (ms) to poll Slack [$SLACK_INTERVAL or 1000]
  -s, --silent          Do not print out warns or errors

Important: if you use Slackin in single-channel mode, you'll only be able to invite as many external accounts as paying members you have times 5. If you are not getting invite emails, this might be the reason. Workaround: sign up for a free org, and set up Slackin to point to it (all channels will be visible).

Realtime Badge

<script async defer src="http://slackin.yourhost.com/slackin.js"></script>

or for the large version, append ?large:

<script async defer src="http://slackin.yourhost.com/slackin.js?large"></script>

SVG

<img src="http://slackin.yourhost.com/badge.svg">

Landing page

Point to http://slackin.yourhost.com.

Note: the image for the logo of the landing page is retrieved from the Slack API. If your organization doesn't have one configured, it won't be shown.

API

Requiring slackin as a module will return a Function that creates a HTTP.Server instance that you can manipulate.

require('slackin')({
  token: 'yourtoken', // required
  interval: 1000,
  org: 'your-slack-subdomain', // required
  channel: 'channel' // for single channel mode,
  silent: false // suppresses warnings
}).listen(3000);

This will show response times from Slack and how many online users you have on the console.

By default logging is enabled.

Credits

  • The SVG badge generation was taken from the excellent shields project.
  • The button CSS is based on github-buttons.

License

MIT