Awesome
<p align="center"> <img src="http://i.imgur.com/uYtVENE.png" alt="Slacker"> </p>zappa-slack-inviter
A teeny tiny server-less Slack channel inviter.
Installation
git clone https://github.com/Miserlou/zappa-slack-inviter
cd zappa-slack-inviter
virtualenv env && source env/bin/activate && pip install -r requirements.txt
Then add your token and channel settings into app.py using your favorite text editor, then zappa init and zappa deploy.
Custom Domains
To deploy your inviter with a custom domain and auto-renewing Let's Encrypt certificate, see this chapter of the Zappa documentation.