SavjeeCoin
Features
- Simple proof-of-work algorithm
- Verify blockchain (to prevent tampering)
- Generate wallet (private/public key)
- Sign transactions
🏁 Getting Started
Install library
npm install --save savjeecoin
Generate a keypair
To make transactions on this blockchain you need a keypair. The public key becomes your wallet address and the private key is used to sign transactions.
const EC = require('elliptic').ec;
const ec = new EC('secp256k1');
const myKey = ec.genKeyPair();The myKey object now contains your public & private key:
console.log('Public key:', myKey.getPublic('hex'));
console.log('Private key:', myKey.getPrivate('hex'));Create a blockchain instance
Now you can create a new instance of a Blockchain:
const {Blockchain, Transaction} = require('savjeecoin');
const myChain = new Blockchain();Adding transactions
// Transfer 100 coins from my wallet to "toAddress"
const tx = new Transaction(myKey.getPublic('hex'), 'toAddress', 100);
tx.signTransaction(myKey);
myChain.addTransaction(tx);To finalize this transaction, we have to mine a new block. We give this method our wallet address because we will receive a mining reward:
myChain.minePendingTransactions(myKey.getPublic('hex'));📽 Video tutorial
This source code comes from my video series on YouTube. You can check them here:
| Video 1: Simple implementation | Video 2: Adding Proof-of-work |
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| Video 3: Mining rewards & transactions | Video 4: Signing transactions |
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| Video 5: Building a front-end in Angular | |
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