Johan Hellgren's Projects
Me and my wife sat down to try and solve the "12 islanders riddle" from Brooklyn Nine Nine, this is our solution.
a simple cli tool that fetches the latest high resolution APOD (Astronomy Picture Of the Day) from NASA, writes the explanation (written by a professional astronomer) on the image and sets it as your desktop wallpaper. works on windows, linux and mac.
demo; local dev env with k8s, skaffold, roundhouse and rumpel
A demo of a simple zero-downtime-deployment strategy using docker compose and HAProxy. The example application in the demo is built with the following tech: .net core 2.0, entity framework core 2.0, postgresql/mssql-linux and docker.
brute force (parallelized) traveling salesman
Code samples for No Starch Press Black Hat Go
A chess program and a CLI game written in Go with zero dependencies
Demo: React Hooks + RTK + Golang + Neo4j + Skaffold + Kubernetes
Go client for Kubernetes.
An environment for learning and experimenting with sharding in MongoDB and load balancing with HAProxy and Node.js .... all within Docker containers.
testar echo
An environment for getting to know the elastic stack (aka ELK and friends)
A quick and easy way to give form.io a spin!
We are all playing dodgeball. Together. All The time.
example to remember skaffold+podman+k3s+local-registry setup...
playing around with Wasm in Go
Hulken is a stress testing tool for everything speaking HTTP. Hulken supports multiple urls, GETs and POSTs, static and dynamic payloads, multiple agents and more. Hulken is highly configurable but defaults to some reasonable settings. Hulken works both as a library and a stand-alone command line tool. Hulken is swedish for The Hulk.
an informant for the stress test tool hulken (works with express3)
an informant for the stress test tool hulken (works with hapi.js)
an informant for the stress test tool hulken (works with hapi.js 8)
A demo of JWT (JSON web tokens) in .NET Core and Node.js running in docker (Linux) containers
A launch point for your personal nvim configuration
stupid and simple demo code for creating a tree out of a flat list
a demo environment for getting cozy with structured logging in dotnet with filebeat, elasticsearch and kibana
Daily sentiment analysis of Swedish news
An environment for evaluating all things microservices. Built for developers.
a simple flashcard cli that stores decks of cards in json files in your home directory. 🦀