Testing webhooks locally with the Hookline dev server

The hardest part of building a webhook handler is getting a realistic request to hit it on your machine. The Hookline CLI ships a dev server that solves exactly that.

Start the server

Run the CLI with your project key and a local port. It opens a tunnel, registers a temporary endpoint and prints the signing secret you need in your environment.

Replay a real event

Pick any event from the last seven days in the dashboard and hit replay with the local endpoint selected. The request arrives at localhost with a valid signature, and the terminal shows status, latency and the response body.

When you are done, stop the server and the temporary endpoint is deleted automatically.