Demonstrate reactive map navigation, making use of Stimulus Reflex, Cable Ready, Stimulus and Leaflet/Mapbox. The 💡 idea here is that we use the Cable Readyset_dataset_property operation to trigger valueChanged callbacks in the Stimulus controller. We do have to take special care to make sure the callbacks do not fire too often.

A good potential next step would be to debounce the Reflex calls, as scroll wheel zooming tends to get a little busy.

You will require a Mapbox key to be set up in your environment or your Rails credentials:

Get a key

There is an instance running on Heroku: https://stimulus-reflex-maps.herokuapp.com/

• ensure Postgres and Redis are both running and available on the usual ports
• bundle
• yarn
• bin/setup
• install MAPBOX_TOKEN environment variable or mapbox_token credential
• run bin/webpack-dev-server in a terminal window
• run rails s in another terminal window