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Apr 20, 2010
Portland Java User Group: WebSockets
Oracle (Downtown Campus)

This month's topic: WebSockets

WebSockets is an exciting new technology that enables bidirectional communication between web applications and server-side processes. Google's Chrome browser already provides WebSockets and developers can expect to see the technology in other browsers in 2010. This presentation will cover the WebSocket protocol and JavaScript API. We'll also discuss Jetty's WebSocketServlet API and demonstrate how to use WebSockets in a GWT application.

PJUG meetings start with some time to eat and socialize (pizza and beverages are provided), followed by the featured speaker, then Q&A, discussion, sometimes a drawing to give away swag. :)

Though we like knowing how many people to expect, you don't have to RSVP, on Upcoming or otherwise. Go ahead and just show up!

Many people also go for a drink and further discussion following the meeting, at a location determined ad hoc (lately, the Market Street Pub at 10th and Market: ). (join our mailing list, linked from the website!)

Apr 11, 2013
Portland Perl Mongers – Twiggy/PSGI +/- AnyEvent + SockJS/PocketIO
Free Geek

speaker: Eric Wilhelm and Anthony Johnson

We will have an overview and demonstration of async and event-driven web applications and websockets with Perl.

As usual, the meeting will be followed by social hour at the Lucky Lab Brew Pub.

Jun 18, 2013
Portland Java Users Group: Vert.x: Asynchronous Application Development for the JVM
Jama Software

You can think of Vert.x as an Actor-model-based, functional event-driven, messaging passing platform that speaks in modern protocols (JSON, WebSockets, etc) and can be used from many JVM based languages but bridges the communication gap between the browser and the server in a new way. Convincingly Vert.x is like a Node for the JVM, but with some fun enhancements.

We'll cover:

  • What, Why and Who of the Vert.x project
  • Discuss the problem space it is good for
  • Demonstrate and discuss concepts and features of Vert.x
  • Show a variety of demo apps illustrating how it works
  • Current State of the Project