# Web frontend
Jungfraujoch is equipped with a React-based web frontend for a user-friendly experience. The frontend has the following features:
* Presenting current state of the detector
* Plotting results of online quality calculations
* Showing live view images from the detector
* JUNGFRAU calibration numbers
* Configuring the detector, as well as pedestal/initialization operations
* Rugnux live mode: the "Rugnux live" tab switches it on, sets its CPU threads and deadline, uploads the
  model, and follows the run's steps; the dashboard shows the live run in a row of its own
  (see [Rugnux live mode](JFJOCH_BROKER.md#rugnux-live-mode))

When the current dataset was started with `tokens`, the plots, the live preview and the
measurement statistics need one of them: the key button in the top bar takes it (kept in the tab's
session storage only, cleared when the tab closes) and the start form has a field for the tokens of
a new run. See [Security](SECURITY.md).

The frontend is written in TypeScript. For details see the `frontend/` directory.