We’re super excited to announce a new Livebook release!

This one comes with a big new feature we’ve been working on: Kino.Proxy.

By using Kino.Proxy, you can now expose API endpoints directly from your notebook or Livebook app.

Here’s a Hello World example:

Kino.Proxy.listen(fn conn ->
  Plug.Conn.send_resp(conn, 200, "hello world!")
end)

(Noticed it’s just a Plug?! )

When you do that, Livebook will start proxying requests at the following paths:

• /proxy/sessions/:id/*path - a notebook session
• /proxy/apps/:slug/sessions/:session_id/*path - a specific app session
• /proxy/apps/:slug/*path - generic app path, only supported for single-session apps. If the app has automatic shutdowns enabled and it is not currently running, it will be automatically started

We believe that APIs with Kino.Proxy open Livebook to a new category of use cases.

For example, you can quickly build an API that receives a request from Zapier to automate internal processes.

Here’s the announcement blog post: Livebook 0.13: expose an HTTP API from your notebook - Livebook.dev - The Livebook Blog

And here’s the docs: Kino.Proxy — Kino v0.19.0