Udacity Blockchain Capstone

The capstone was built upon the knowledge you have gained in the course in order to build a decentralized housing product.

Requirements

• Truffle v5.5.24 (core: 5.5.24)Truffle v
• Solidity v0.5.16 (solc-js)
• Node v16.15.0
• Web3.js v1.7.4
• Ganache v7.4.0

How to test the code

1. After having cloned the repository, install all depedencies thanks to npm install
2. Install the ganache-cli if it's not the case. When it's done, launch the local blockchain with ganache-cli cmd.
3. Please verify the requirement versions about solc, node and truffle versions and upgrade/downgrade each tool if needed.
4. Now you can launch the command truffle test to test the code.

Transaction logs

Deploying 'SolnSquareVerifier'

transaction hash: 0x5aacaaa8ce5a878f0983e9583c5b2a82901605738681dbd887fca85ce64d0837 Blocks: 1 Seconds: 12 contract address: 0xF8561e4e1F1479CDE7b7B8f0e0eA75bb78732e07 block number: 11177224 block timestamp: 1660122498 account: 0x1194084afb4e8b473210C535A6aE770ef09E323E balance: 2.973136294653211918 gas used: 3283008 (0x321840) gas price: 2.500000025 gwei value sent: 0 ETH total cost: 0.0082075200820752 ETH

Saving migration to chain. Saving artifacts

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Total cost: 0.0082075200820752 ETH

URL of the storefront link and Contracts address

Opensea Marketplace : https://testnets.opensea.io/collection/real-estate-marketplace-du2qnzhkav

Verifier : 0xABdF8a4c52b37c09Cbb688428FCf9E963C589555

SquareVerifier : 0xF8561e4e1F1479CDE7b7B8f0e0eA75bb78732e07

Assets

Tests passed

Transactions about NFT-0 to NFT-4

Project Resources

• Remix - Solidity IDE
• Visual Studio Code
• Truffle Framework
• Ganache - One Click Blockchain
• Open Zeppelin
• Interactive zero knowledge 3-colorability demonstration
• Docker
• ZoKrates