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DNI Demo
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| # Add to ag/app/routes/routes.rb | |
| get '/dni_demo/' do | |
| zid = request.cookies['zid'] | |
| msg = zid ? "Your zid is #{zid}" : "You have no zid" | |
| content_type 'text/javascript' | |
| %{document.getElementsByTagName('span')[0].textContent = "#{msg}";} | |
| end |
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To demo, add a script tag similar to the following just before closing body tag of http://primedia.railsplayground.net/dynamic-phone/:
Expected result:
Hello There
My phone number is Your zid is Nrk9zSwUwZS51b2elOoWwvHORQf.
Try to change it dynamically. I dare you.
Notes: This is a very quick and dirty jsonp-like approach. Since the cookie reading is done server-side, we'd have to be careful to avoid varnish caching issues. If varnish respects cache-control headers (I don't know) we could set No-Cache in the response.
Otherwise we might have to add the script tag dynamically and add a cache-busting query param.