#Technology Stack

As a team of people using technology to make DLT products, it’s essential to be unambiguous about the technology/tools we use, so that everyone is clear what we all need to learn/use to make product(s) that are functional, fast, beautiful, usable and reliable!

ARK Core is written in TypeScript , and it has been using Lerna to manage the development and publication of its packages and uses Node.js as execution environment.

#Development tools

The following development tools need to be installed on your machine to develop an application using ARK Core:

• Hapi.js - A rich web framework for building applications and services. A base for our public REST API.
• InversifyJS - A powerful and lightweight inversion of control container for JavaScript & Node.js apps powered by TypeScript.
• Lerna.js - A tool for managing JavaScript projects with multiple packages.
• NodeJS - As ARK Core is written exclusively in NodeJS, the server-side framework for JavaScript, installing Node is a necessity for core development.
• PostgreSQL - our “standard” database is Postgres. Postgres is the most “mature” Open Source Relational Database. It’s 100% Free (including all “advanced” features).
• TypeORM - ORM for TypeScript and JavaScript (ES7, ES6, ES5). Supports MySQL, PostgreSQL, MariaDB, SQLite, MS SQL Server, Oracle, SAP Hana, WebSQL databases. Works in NodeJS, Browser, Ionic, Cordova and Electron platforms.
• TypeScript - A language for application-scale of JavaScript. TypeScript adds optional types to JavaScript that support tools for large-scale JavaScript applications for any browser, for any host, on any OS. TypeScript compiles to readable, standards-based JavaScript.

#Operating System

While we have a strong preference for Linux (e.g. Ubuntu or CentOS), however we know that both Node.js and Postgres run on almost any environment including Microsoft Windows Desktop & Server.