Leptin 🔗

A cryptocurrency completely built in Nodejs.

This is a continuing project based on blockchain-in-node.

Why another repo?

Because blockchain is different from crypto!

• After building a blockchain in node, I want to build a crypto which impelement address, signatures, transactions, and broadcasting features.
• Learning to build a crypto can help us understand how to customize blockchain state to match our application needs and revealed the power of blockchain.

This is a lovely demo for

• Idea of how Blockschain, Mining, Nodes, Transaction work with each others.
• Network synchronizing with websocket
• Transactions(p2p sending)
• Wallet (calculating balance)
• secp256k1(encrypt/verify/sigital signatures),
• Mining(proof of work) and Rewards
• Dynamical difficulty

Run it on your machine

$ git clone https://github.com/amazingandyyy/leptin.git
$ npm i
$ npm run dev
// you will have
$ [socket]         listening on 5001
$ [server]         listening on 3001

<!-- example to run more nodes -->
$ HTTP_PORT=3002 P2P_PORT=5002 PEERS=ws://localhost:5001 npm run dev
$ HTTP_PORT=3003 P2P_PORT=5003 PEERS=ws://localhost:5002,ws://localhost:5003 npm run dev

Author

amazingandyyy (Andy Chen)

Resources

• Blockchain 101 - A Visual Demo by Anders Brownworth
• Blockchain 101 - Part 2 - Public / Private Keys and Signing by Anders Brownworth
• Ethereum : Decentralized Application Design & Development by Rajeev Sakhuja
• Ethereum and Solidity: The Complete Developer’s Guide by Stephen Grider
• Blockchain Programming Using Javascript
• Build a Blockchain and a Cryptocurrency from Scratch

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