design_pattern_decisions.md

Design pattern decisions

upgradable ERC721 Token

upgradable ERC721 token sample with ZeppelinOS

related post https://medium.com/@maroton621

env

• Truffle v5.0.4 (core: 5.0.4)
• Solidity v0.5.0 (solc-js)
• Node v11.3.0

Deploy with Truffle

initialize zos

$ zos init sample-pj

start ganache

$ ganache-cli -p 7545 -d

contract migration

$ truffle migrate --network local

Deploy with zos command

initialize zos

$ zos init sample-pj

start ganache

$ ganache-cli -p 7545 -d

deoloy v0

$ zos add SampleToken
$ zos push --network local
$ zos create SampleToken --init initialize --args="SampleToken,STKN" --network local

update v1

$ zos add SampleToken_v1:SampleToken
$ zos push --network local
$ zos update SampleToken --network local

test

$ yarn start-ganache
$ yarn test