Using constructs of functional programming in non-functional languages

Simple node.js client based on library simple-oauth2 that triggers an auth code flow and prints the JWT content

Playing with gRPC

Studies variants of integrating Protocol Buffers and gRPC client stubs and service descriptors into Node.js

Counts the number of occurrences of every word in all text files within a folder - Go version

Displays the tiles, clusters, max squares of all your GPX files on a Leaflet map.

Algorithms and data structures for mapping geo coordinates to slippy-map tiles, clustering of adjacent tiles, and finding largest squares included in clusters.

Demonstrates how an axum SSE handler can receive messages from a Tokio broadcast channel

A Rust server with a web UI that downloads all Strava activities and the corresponding tracks as GPX files.

Demonstrates how an axum SSE handler can run a periodic task, which delivers a variable number of events

Demonstrates the authorization of a REST API with Open Policy Agent (OPA) and Keycloak

Three simple applikations to be deployed in Kubernetes. One is a frontend service (written in node.js), which forwards incoming HTTP requests to two backend services (written in Java and Go) and me…

Experiments with Envoy as application sidecar in Kubernetes PODs

This project demonstrates how a service can provide both aggregates and their corresponding change events in a consistent way.

Experiments with GraphQL federation using Apollo

Creates snapshops of the VeloViewer Activities screen given a list of dates

JsonPatch is an enum to express the ternary logic of JSON properties

Counts the number of occurrences of every word in all text files within a folder - C++ version

Counts the number of occurrences of every word in all text files within a folder - Java version