Piccol chain

Based on

• https://medium.com/crypto-currently/lets-build-the-tiniest-blockchain-e70965a248b
• https://github.com/lhartikk/naivechain

Prerequisites

You need:

• jdk 11
• maven
• docker
• docker compose

Run it!

Execute
mvn clean package && docker-compose up

Than you can communicate with nodes on these url:

• guestlist: http://localhost:10000/
• node_one: http://localhost:10001/
• node_two: http://localhost:10002/
• node_three: http://localhost:10003/

Put those urls in you browser to show node's data.

Api

Guestlist

• POST /nodes join the net, body contains the hostname
• GET /nodes retrieve the nodes' hostnames

Node

• POST /transactions create a transaction, body contains the json representation
• GET /mine mine a block
• GET /blocks retrieve the blockchain
• POST /addPeer make the peer extabilish a websocket connection. body contains the hostname