smhillin/erc721_deed

Implementation of ERC721 deed

Property Deed based on ERC721

Project repo

https://github.com/smhillin/erc721_deed

Necessary software and packages.

• Ganache
• Install python 3.7
• Solidity 0.5.5
• Install truffle
• Requirements.txt python packages
• @openzeppelin/contracts@2.5.0

Instructions for installing each of the above.

https://www.trufflesuite.com/ganache
npm install truffle -g
pip install -r requirements.txt

Download my repo: https://github.com/smhillin/erc721_deed From the top level directory run the following

pip install -r requirements.txt
npm install @openzeppelin/contracts@2.5.0

How to run the code.

• Download my repo: https://github.com/smhillin/erc721_deed

• Open main.py make sure that the relative paths for contract and node module @zepplin directory are accurate.

  contract="contracts/CountyClerkRepo.sol" zepplin_directory="node_modules/@openzeppelin/"

• In python.main update "chain_info" with your ganache address and port

  chain_info = 'http://127.0.0.1:8545'

• From CLI Compile code

  truffle compile

• From top level directory on the CLI run main.py this will run a series of unit test

  python main.py

• if all test run ok you should see

  ---

  Ran 4 tests in 7.311s

  OK

Credits

"Mastering Ethereum" by Andreas M. Antonopoulos https://github.com/nastassiasachs/ERC721ExampleDeed/blob/master/contracts/ExampleDeed.sol

Additional Instructions

Main.py file that serves as my interface.

Country Clerk class is used to create a contract and interact with it.
From that contract you can create and change deeds.

Class DeedCreateTest runs the unit test for the following

• creating a deed
• creating two deeds
• creating a deed and changing the owner
• creating a deed, changing the owner and returning account numbers for chain of title