Chat on Micha Kops' Tech Notes

Writing a Websocket Chat in Go

Sat, 29 Oct 2016 00:00:00 +0200

Learning the Go programming language, I wanted to implement an application that I had written with other languages and frameworks before to get a grip on this language.

That’s why I tried to implement a really simple websocket chat server in Go and described my approach in the following article.

Go Websocket Chat Implementation

Writing the Chat Server

Websocket Chat in Action

Creating and Providing HipChat Integrations with Atlassian Connect, Nodejs and Express

Tue, 18 Aug 2015 00:00:00 +0200

HipChat is Atlassian’s alternative to Slack and its solution to team collaboration chats. Atlassian Connect offers developer tools to bootstrap applications, connect to Atlassian’s cloud products with easy and in combination with HipChat’s REST APIs allows us to write integrations for such a chat server in no time.

In the following tutorial I’d like to show how to write an integration within a few steps using Atlassian Connect, Node.js and Express and how to connect the integration to a HipChat server.

Creating different Websocket Chat Clients in Java

Sun, 09 Nov 2014 00:00:00 +0100

Having written two articles about different websocket based chat server implementations in Java, I was recently asked how an implementation of the client side would look like in Java.

That’s why I added this article to demonstrate how to create a websocket chat client applications within a few steps with the Java API for Websocket.

In the following tutorial, we’re going to write a text-based chat client for the console first and afterwards we’re going to program a chat client with a graphical user interface, implemented in JavaFX.

Creating a XMPP Chat Bot with Apache Camel

Sun, 12 Oct 2014 00:00:00 +0200

Apache Camel not only is one of my favourite frameworks ever but it also allows the humble developer to create a full blown chat bot within a few lines of code and using the Camel XMPP component.

In the following tutorial, we’re going to create a simple chat bot and since Atlassian’s HipChat basic plan is now free for unlimited users, we’re using HipChat as our play- and testing ground for the bot.

Creating a Websocket Chat Application with Vert.x and Java

Wed, 13 Nov 2013 00:00:00 +0100

Vert.x is a modern, lightweight framework to build high performance applications running on the Java Virtual Machine. The framework is polyglot so that you’re able to write your application in Java, Groovy, Ruby, Python or even JavaScript.

In addition it offers a nice component system, an actor-like concurrency model a distributed event bus and an elegant API to create scalable applications in no time.

In the following tutorial we’re going to build a websocket chat by creating a HTTP server and the websocket server using Vert.x, Java and Maven.

Creating a Chat Application using Java EE 7, Websockets and GlassFish 4

Tue, 13 Aug 2013 00:00:00 +0200

Java EE 7 is out now and so I was curious to play around with the new specifications and APIs from in this technology stack.

That’s why I didn’t hesitate to add yet another websocket-chat tutorial to the existing ones on the internet in favour of gathering some experience with this technology and a possible integration using a GlassFish 4 server, the new Java API for JSON Processing for data serialization combined with custom websocket encoders/decoders and finally adding some Bootstrap and jQuery on the client side.