This addon is an example of storing a url on the settings page and using that to display an iframe on sidebar.

The manifest can be obtained on GET {addonUrl}/manifest-v0.1.json.

Developed using NodeJS, Docker. This addon doesn't not use any sdks, just plain HTML to display the iframe and a static manifest (static/manifest-v0.1.json) file to define settings page and the sidebar entrypoint.

You need docker installed and a ngrok auth token that can be found on ngrok dashboard.

cp .env.example .env

Edit .env and include your token on NGROK_AUTH_TOKEN=(your token here)

docker compose up

After that the container is up, use the url provided on the console to register the addon. This addon comes up with ngrok and generates the public url by itself.