APIs

You can interact with HFS in some ways:

HTTP

You can invoke REST APIs.

Authentication by default is not necessary if requests are done using localhost (can be disabled). Otherwise you can replicate the login process (cookie based), or use http basic authentication. Avoid using clear passwords without https.

Since our interfaces are web-based, there's an API for almost anything. At the moment only a few are documented, but you can study others by looking into browser's dev-tools:

Javascript

While http requests are suitable for external software, you should consider also writing a plugin, or just writing some server code.

Files

Some files like config.yaml, custom.html and plugin.js are monitored, and reloaded at every change, without need to restart the server.