Dancer is a lightweight web framework for Perl inspired by Sinatra. Using simple URL routes and handlers to take action when routes are matched, it is possible to quickly build interesting and useful web applications with very little boilerplate code. This talk will cover the basics, as well advanced routing, plugins and showcase a tutorial application.
This talk looks at the advantages and disadvantages of different techniques for dynamic content updates: short polling, long polling, and WebSockets. These techniques allow web developers to provide users with a fluid experience that keeps pace with their expectations. The talk concludes with a deep dive into both the WebSocket API and protocol.