Udacity Blockchain Capstone "AS_Properties Marketplace"

AS_Properties Marketplace is the capstone project for Udacity's Blockchain course.

Install

This repository contains Smart Contract code in Solidity (using Truffle), tests (also using Truffle)

To install, download or clone the repo, then:

npm install

In directory eth-contracts/
truffle compile

Tests

To run truffle tests: In directory eth-contracts/

For all tests:
truffle test All 10 tests should pass. For single file tests:
truffle test test/TestERC721Mintable.js
truffle test test/TestSquareVerifier.js
truffle test test/TestSolnSquareVerifier.js

Addresses and Links

Contract address (Token) : 0x4baD3d135747B2843A9afF212cadD3E186f01c7D
Contract address (Verifier): 0x2F06031173b442ac25C0d52da11d58e303189894
OpenSea Marketplace Storefront link's: AS_Properties Marketplace

ZoKrates

Step 1: Run ZoKrates in Docker

docker run -v <path to your project folder>:/home/zokrates/code -ti zokrates/zokrates:0.3.0 /bin/bash

Step 2: Compile the program written in ZoKrates DSL

./zokrates compile -i code/zokrates/code/square/square.code

Step 3: Generate the Trusted Setup

./zokrates setup

Step 4: Compute Witness

./zokrates compute-witness -a 3 9

Step 5: Generate Proof

./zokrates generate-proof

Step 6: Export Verifier

./zokrates export-verifier

Deploy to Rinkeby

Create a .secret file in /eth-contracts/ with your mnemonic.

Example .secret content:

hood outer advance century enter marriage symbol acquire access cactus family rather

Start deployment

truffle migrate --network rinkeby

Project Resources

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