Updating Microservices with Netty 5, Kafka 3, and React: Whirlpool Revisited

John Boardman Articles, Development Technologies & Tools, Java, JavaScript, Microservices, React Leave a Comment

Back in 2015 and 2016, I wrote two blogs that went step by step to develop a microservice/Netty architecture with fully working code called Whirlpool.

A lot has changed in the years since, so recently I decided to come back to the project, update it with the latest versions of Kafka and Netty, and add a React UI to it (rather than the vanilla JavaScript version it used before). In addition, I also added Windows Subsystem for Linux (WSL) scripts in addition to the Mac and Linux scripts that were there before and made all of the scripts more robust.

This blog will be about the work that went into all of those updates, plus a look at the new React UI. This provides an excellent view into what it takes to update an outdated microservices application implemented with Kafka (version .9 –>3.0) and Netty (4.1.3->5.0.0-alpha2), bringing all versions up to date and adding a React UI. By the end you’ll be familiar with the latest versions of these frameworks, know some “gotchas” to avoid, as well as understand how to integrate WebSockets into React.

Node.js for Discord Bot

Using Node.js To Create a Discord Bot

Josh Green Articles, Development Technologies & Tools, JavaScript, Node.js, Programming, Tutorial Leave a Comment

From Zoom to Skype to Microsoft Teams, there is an endless number of platforms to help keep you connected. One such platform is Discord – a service primarily intended for gaming that allows you to voice chat, video chat, or screen share with a community you have developed on your own hosted “server.” One of Discord’s best features is a developer portal with an open API that allows you to add bots and apps to your server, as well as write your own.

There is true beauty in the ability to create your own custom solutions to fill your needs. So in this brief tutorial, I’ll show you how to get up and running writing your own Bots and Apps for Discord with Node.js.

Read XML

Using JAXB And StaxEventItemReader To Read XML Data

Jonny Hackett Articles, Development Technologies & Tools, Programming, Spring, Spring Batch 2 Comments

In one of my previous Spring Batch blog articles, I wrote about the need to read a set of data, process the data, and export the transformed data into XML for consumption by another system. In this blog, I’ll be doing the opposite. I’ll show you how to read data from an XML format instead.

VS Code’s Development Container: A Stepping Stone To IaC

Luke Patterson Articles, AWS, Cloud, Development Technologies & Tools, DevOps, Python, Tutorial Leave a Comment

In this post, l explain how we used Visual Studio Code’s Development Container feature as a stepping stone in our long-term effort to achieve Collaborative Infrastructure as Code. This one step in the process gave a versioned, repeatable working environment and allowed us time to determine the next steps in the effort to achieve IaC.

ArcGIS Developer Mapping APIs Quickstart

Todd Horn API Development, Articles, Development Technologies & Tools, Programming, Python, Tutorial Leave a Comment

I have always been interested in maps and GIS data. Whether I am planning a hike or a backpacking outing for scouts or helping the Ozark Trail Association with their website, trail building, and maintenance or needing directions from one place to another, a good map and mapping tools are a necessity.

ArcGIS has always been the gold standard for anything related to maps and GIS data. So, in this blog, we’ll take a look at some of the mapping options that are available with an ArcGIS Developer account and their Mapping APIs.