This is the ReactJS demo web app running on https://valhalla.openstreetmap.de. It provides routing and isochrones with a magnitude of options and makes requests to Valhalla, an open source routing engine and accompanying libraries for use with OpenStreetMap data.
Install the dependencies.
Runs the app in hot-reload mode on http://localhost:3000 to view changes in the browser.
Builds and bundles the minified app for production to the ./build folder.
Your app is ready to be deployed!