Wrapped PCI (WPCI) token contract

ERC20 based token for wrapping PCI.

Upgradeable contract

• UUPS proxy pattern (EIP1822)
• OpenZeppelin Truffle Upgrades API

Environment

• CentOS Linux release 7.9.2009 (Core)
• Truffle v5.3.14 (core: 5.3.14)
• Solidity v0.5.16 (solc-js)
• Node v16.20.2
• Web3.js v1.4.0

Installation

% npm install

Compile

% truffle compile

Run

Run local dev node and console

% truffle develop

Migrate (compile & deploy)

truffle(develop)> migrate --to 1

Example

truffle(develop)> wt = await WPCI.deployed()
truffle(develop)> wt.address
truffle(develop)> wt.wrap(accounts[0], '12300000000', '0x77742e756e777261702827307835303433343933303331333933333335333633')
truffle(develop)> wt.wrapped('0x77742e756e777261702827307835303433343933303331333933333335333633')
truffle(develop)> (await wt.balanceOf(accounts[0])).toString()
truffle(develop)> wt.unwrap('PCI01EF50758D506AD9570B1C567123B0390D9F5AEE651770018A', '1000')

Migration

% truffle migrate --network goerli
// specific files
% truffle migrate -f 2 --to 2 --network goerli

Source Code Flatten (for Verification)

1. Go Remix Ethereum IDE
2. Create a contract source file in the contracts folder
3. Add the module version to import statements

import "@openzeppelin/contracts-upgradeable@4.5.1/...

4. Choose the compiler version and compile
5. Add the 'FLATTENER' plugin and use it

GO ABI binding

• See GO Contract Binding