Naivechain.rb

Naivechain is a Ruby implementation of Blockchain in ~160 lines.

Blockchain is a distributed peer-to-peer, non-functional^$ implementation that can be used in a lot of cases where intermediaries exist. Blockchain attempts to disintermediate the world using publicly transparent chains of block spread over nodes.

This implementation takes inspiration from Naivechain excepts:

1. It used HTTP for all communication
2. It has proof of work mechanism albeit very simple
3. It is written in an object-oriented fashion: Block and Chain class.

^$: Non-functional requirement: a requirement specifying the how part of a system, e.g.: how the system will work that is, it will work by involving a Blockchain, Merkle tree, and so on. On the other hand, making a borderless transaction is a functional requirement.

Running

Start the server:

rackup ./server.ru -p 9292

Start the client tool:

ruby client.rb
Blockchain client
Specify the port: 9292
9292> hi there

You may spawn as many server and client instances as you please.

Endpoints

Endpoint	Purpose
/peers	Listing all peers
/chain	Showing the chain, including the blocks
/chain/blocks	Showing the blocks in the chain
/peers/register/:port	Adding a peer in this node, and vice-versa
/chain/add	Convenient endpoint to add a new block with text data
/chain/mine	Endpoint for peer-to-peer communications