HackJam Java and Blockchain

Goal

In this session we hope you will learn how build and/or interact with Blockchain technologies using Java. It's a trendy subject so there are thousands of tutorials online, one can easily get lost in that sea of information (we certainly did at first) BUT there's no better way to learn than hacking it yourself.

We will start by fixing a [broken] custom implementation of a Blockchain System for EVoting use case.
Then we will interact with one of the most popular implementations of Blockchain which is Ethereum using a Java Library called Web3j.
Finally, let's talk about Blockchain-as-a-Service.

Requirements

Be comfortable using java 1.8 or higher
Spring Boot
maven
docker

Getting started:

Clone this repository git clone https://github.com/hackages/hj-java-blockchain.git
git checkout starting-point

Check dependencies

Mac or Linus command ./mvnw clean install -DskipTests
Windows command mvnw.cmd clean install -DskipTests

Slides

Follow this presentation given by the Hackages mentor

Things to know about this Hackjam code sources

You use Test Driven Development to fix the issues
You don't need to fix maven's configuration