Blockchain Simulation

This is just a Web to simulate how Blockchain works in a short and simple way. Built on javascript (nodejs) and using Vuejs as Front End. (Just for education only)

Preview

Demo

To see directly, you can see via the following link : Live Demo

Loader Animation create in After Effect, if you wanna see :

Usage

You can see the base lib in /blockchain-simulation/lib

const Blockchain = require('./blockchain')
const Transaction = require('./transaction')
const { KeyGenerator } = require('./signature')
// Create a new blockchain const mycoin = new Blockchain()
// Configure the blockchain mycoin.blockProofOfWorkDifficulty = 4
// create a new wallet const mywallet = (new KeyGenerator()).generate() // { publicKey: '...', privateKey: '...' }
// make default balance of wallet const systemTransaction = (new Transaction(mycoin.system.publicKey, mywallet.publicKey, 1000)).sign(mycoin.system.privateKey) mycoin.addTransaction(systemTransaction) // mycoin.mine(mycoin.system.privateKey)
// create a new transaction const destinationAddress = 'my-friend-address' const mytransaction = new Transaction(mywallet.publicKey, destinationAddress, 10)
// sign the transaction with my wallet private key mytransaction.sign(mywallet.privateKey)
// add the transaction to the blockchain mycoin.addTransaction(mytransaction)
// const mineAddress = 'miner-address' mycoin.mine(mineAddress).then(() => {   // mine was successful   console.log({     myballance: mycoin.getBalance(mywallet.publicKey),     myfrinedballance: mycoin.getBalance(destinationAddress),     minerballance: mycoin.getBalance(mineAddress),   })   // get last block   const lastBlock = mycoin.getLastBlock()   console.log(lastBlock)   // check valid chain   console.log(mycoin.isValid()) // true })

This script you can see in /blockchain-simulation/lib/example.js