Kameleon NPM | npm.io

Kameleon

Javascript framework for private and public blockchains powered by Tendermint consensus.

This project is work in progress. It should not be used in production to hold real value.

Features

Pure Javascript experience for both public and private blockchain development
P2P and consensus provided by a Tendermint node under the hood
Extensible using third party middlewares
Ethereum transaction format and RLP serialization
Secp256k1 addresses and signing compatible with Ethereum wallet tools
Transaction signature validation

Installation

Requirements:

Node.js v.7.6.0 or higher
Mac or Linux

npm install --save kameleon

Usage

Minimal Viable Kameleon

let kameleon = require('kameleon')

let node = new kameleon({
    initialState: {
        accounts:{}
    }
})

node.use(function(state, tx) {
  state.accounts[tx.from] = true
})

node.query('account',function(state, account){
  return state.accounts[account] === true
})

node.start()

Configuration

new kameleon(Object) creates a new kameleon instance. It can be given an object as an optional argument to configure Kameleon. Below are the default values:

{
    initialState: {},
    queryHandlers:{},
    peers:false,
    verbose: false,
    home: process.cwd(),
    blockSize:1000000, // 1MB
    txSize: 100000,
    rpcPort:26657,
    abciPort:26658,
    p2pPort:44446,
    chainId:99,
    validatorPubKeyTypes:['ed25519', 'secp256k1']
}