Book Launch Alert! 📚 Exciting news for all tech enthusiasts! 🚀

Book Launch!

The Aspiring Full Stack Developer's Playbook:
From AI to Microservices and Kubernetes

AVAILABLE NOW!

The Most Practically Useful Programming Book Ever Written!
A Treasure Trove of Programming Tips!

  • Authorization with JSON WebToken
  • File upload with Drag & Drop
  • State Management with React Context API
  • Storage of passwords and secret keys
  • Unobtrusive validation
  • SQLite database
  • Server Side Rendering
  • Webpack 5 for module bundling and minification
  • ServerAPI with Angular, React, Vue and Blazor clients
  • WebAPI Data Traffic with NServiceBus
  • Data Traffic with Custom Data Queue
  • Add Services to WebAPI
  • Hangfire, Postman and Swagger
  • Docker, Docker Orchestration and Docker-Compose
  • Orchestration with Kubernetes
  • Security in Web Applications
  • State Machine
  • Broadcast Messaging in Angular
  • Ramanujan's Factorial Aproximation

Upcoming features

Planned features:

  • React with Typescript
  • Vite as alternative to react-scripts for building React applications

Welcome to Gunnar Siréus' ReactJS Single Page Application

Runs in a docker container on Azure


As a professional, I am dedicated to creating value for customers. Collaboration with colleagues and taking responsibility for the group's work and the success of projects is the most important thing for me. In other words, being professional. This page is both my personal website and the website for Siréus Consulting AB. It is also a platform for implementing ReactJS code. In the latest update, I introduced the ability for a logged-in user to add photographs to a photo album with Drag & Drop. The origin comes from a Starter Kit from Microsoft written in WebForms/VB and released in 2005. In 2011, the site was converted to C# MVC and during 2016-2017 it was rewritten to .Net Core and ReactJS. My focus has always been on testing new technologies with an emphasis on speed and responsiveness. The layout is essentially the same as in 2005, but the original CSS code has been replaced with Bootstrap. Some .jpg and .gif files remain from 2005. The site is updated quite rarely; the changes made are mostly things that are not visible, such as upgrading to the latest version of ReactJS and Webpack and rewriting code.

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Don't hesitate to contact me at epost