example

Arizona on Nova: a link shortener

A small Nova application where the two frameworks split the work on one listener:

• Nova follows short links. /s/:code redirects to the stored URL and counts the visit (src/example_links_controller.erl), and /api/links lists them as JSON. Plain Nova routes (src/example_router.erl).
• Arizona is the dashboard at / (src/example_dashboard.erl): shorten a URL, and watch each link's clicks climb live, in every open tab, the moment someone follows it through Nova. No polling: the visit Nova counts is broadcast, and the dashboard patches just that number.

They share a tiny store (src/example_links.erl, an ETS table) and Arizona's pubsub. The wiring is all in config/sys.config: Arizona's middleware in front of Nova's chain, and the Arizona routes in the arizona_nova env.

Run it

From this directory, against the arizona_nova checkout around it:

mkdir -p _checkouts && ln -s ../.. _checkouts/arizona_nova
rebar3 shell

and open http://localhost:8080 (change port in config/sys.config if 8080 is taken). Without the _checkouts link it runs the published arizona_nova instead.

rebar3 ct boots it on a free port and drives the whole loop over the wire: a link shortened on the dashboard, followed through Nova's redirect, and its click arriving back live.