Receiving 3rd party webhooks on a locally hosted web app

I spent today integrating Paddle into Readership. Readership isn’t hosted anywhere publicly available yet, so I needed a way to feed Paddle’s webhooks to a URL on localhost.

Enter UltraHook. Having used it for a few hours, I really can’t fault it. It’s lightweight, it’s stable and it just works.

Getting up and running is a 3 step process if you already have Ruby installed:

1​. Install it:

$ gem install ultrahook

2​. Configure it (you get an API key when you sign up):

$ echo "api_key: YOUR_API_KEY" > ~/.ultrahook

3​. Run it:

$ ultrahook paddle-alerts 8888/api/v1/paddle/alerts/new

The command in step 3 tells UltraHook to listen for webhooks POSTed to and forward them to localhost:8888/api/v1/paddle/alerts/new on your machine. All that’s left to do is to tell the service you’re receiving webhooks from to send them to the generated URL.

Thanks for reading! If you liked this post, you may like others archived in: Web Development. You can keep up to date with new posts by subscribing to the RSS Feed or by following me on