Lightbend Activator

SSE Chat Template with AngularJS (Java)

SSE Chat Template with AngularJS (Java)

April 28, 2014
sse chat angularjs single-page-application java

A template for a simple chat application using Server Sent Events and Java 8 lambda expressions.

How to get "SSE Chat Template with AngularJS (Java)" on your computer

There are several ways to get this template.

Option 1: Choose sse-chat-template-java in the Lightbend Activator UI.

Already have Lightbend Activator (get it here)? Launch the UI then search for sse-chat-template-java in the list of templates.

Option 2: Download the sse-chat-template-java project as a zip archive

If you haven't installed Activator, you can get the code by downloading the template bundle for sse-chat-template-java.

  1. Download the Template Bundle for "SSE Chat Template with AngularJS (Java)"
  2. Extract the downloaded zip file to your system
  3. The bundle includes a small bootstrap script that can start Activator. To start Lightbend Activator's UI:

    In your File Explorer, navigate into the directory that the template was extracted to, right-click on the file named "activator.bat", then select "Open", and if prompted with a warning, click to continue:

    Or from a command line:

     C:\Users\typesafe\sse-chat-template-java> activator ui 
    This will start Lightbend Activator and open this template in your browser.

Option 3: Create a sse-chat-template-java project from the command line

If you have Lightbend Activator, use its command line mode to create a new project from this template. Type activator new PROJECTNAME sse-chat-template-java on the command line.

Option 4: View the template source

The creator of this template maintains it at

Option 5: Preview the tutorial below

We've included the text of this template's tutorial below, but it may work better if you view it inside Activator on your computer. Activator tutorials are often designed to be interactive.

Preview the tutorial

Explore the App

This is a simple chat application for demonstrating the usage of Server Sent Events together with an AngularJS single page application. It makes use of Java 8 lambda expressions.
You can select one of five chat rooms. You will find that Romeo and Juliet are having a conversation in room one. That way the app is a little more interesting to look at than the average chat example application.

This application has been originally written in Scala by Matthias Nehlsen. This template is a port to Java. The Scala version can be found here.