Repository Index

Learn Apple's Swift programming language interactively through these playgrounds.

Data Hacking Project

🔐 Tutorial of setting up Security for your API with one way authentication with TLS/SSL and mutual authentication for a java based web server and a client with both Spring Boot. Different clients are provided such as Apache HttpClient, OkHttp, Spring RestTemplate, Spring WebFlux WebClient Jetty and Netty, the old and the new JDK HttpClient, the old and the new Jersey Client, Google HttpClient, Unirest, Retrofit, Feign, Methanol, vertx, Scala client Finagle, Featherbed, Dispatch Reboot, AsyncHttpClient, Sttp, Akka, Requests Scala, Http4s Blaze, Kotlin client Fuel, http4k, Kohttp and ktor. Also other server examples are available such as jersey with grizzly. Also gRPC, WebSocket and ElasticSearch examples are included

• tls
• truststore
• certificate
• keystore

How to build useful, profitable apps in 2026. Clone it and point your coding agent at AGENTS.md.

:rainbow: discover the beautiful programming language that makes front-end web apps a joy to build and maintain!

• tutorial
• learning
• elm-format
• elm-architecture

ARKit - Place virtual objects using ARKit.

• arkit
• apple
• ios
• ios-swift

Organize material to teach functional programming using Elixir

TranslatedQ&A on buying, topping up, and top-up-on-behalf for ChatGPT Plus / Pro in China: how much it costs, Alipay, no overseas bank card, new activation or renewal on your own account, upgrading from Plus to Pro100 / 5x before Plus expires, Pro200 / formerly 20x and Pro500 plans, Codex usage, verifying that the payment arrived, and order lookup; includes a runnable offline open-source example.

• aixiamo
• alipay
• chatgpt-daichong
• chatgpt-plus

Tutorial on Multicore OCaml parallel programming with domainslib

• ocaml
• multicore

Documentation on building a HTTPS stack in AWS with HAProxy

Example Project & Guide for mastering Promises in Node/JavaScript. Feat. proposed 'Functional River' pattern

• nodejs
• javascript
• callbacks
• refactoring

A tutorial on the D programming language templates.

Vert.x Blueprint Project - A reactive todo-backend implementation using Vert.x and various persistence

• vertx
• restful-api
• asynchronous
• rxjava2

Learn V by Example

• learning
• programming
• educational
• lessons

A tutorial on how to set up a Cordova project using Create React App.

• cordova
• create-react-app
• react
• webpack

Bitcoin Programming with BitcoinJS, Bitcoin Core and LND

• bitcoinjs-lib
• bitcoin
• javascript
• bitcoin-core

How to build an analytics agent that gets your business numbers right: metrics from your analysts' SQL, a golden set of real questions, improvement loops

Instructions for building an almost consumer hardware based prototype of a hearing aid

• hearing
• hearing-aids
• signal-processing
• jack