EVT-LIB
Full spec: https://neps.newtonproject.org/neps/nep-53/
Library for EVT development.
- Standard implementation of EVT
- Example contracts for using EVT
- Factory for EVT industry application
Overview
Installation
$ npm install @newton-protocol/evt-lib
Usage
Use evt-base
- EVT
// SPDX-License-Identifier: GPLv3
pragma solidity ^0.8.9;
import "@newton-protocol/evt-lib/contracts/evt-base/EVT.sol";
contract MyEVT is EVT {
string private _logo;
constructor(
string memory name_,
string memory symbol_,
string memory logo_,
string[] memory properties,
bytes32[] memory encryptedKeyIDs,
string memory _newBaseURI
) EVT(name_, symbol_, properties, encryptedKeyIDs, _newBaseURI) {
_logo = logo_;
}
}
- EVTA
// SPDX-License-Identifier: GPL-3.0
pragma solidity ^0.8.9;
import "@newton-protocol/evt-lib/contracts/evt-base/EVTA.sol";
contract MyEVTA is EVTA {
constructor(
string memory name_,
string memory symbol_,
string[] memory properties,
bytes32[] memory encryptedKeyIDs,
string memory _newBaseURI,
uint256 maxBatchSize_,
uint256 collectionSize_
)
EVTA(
name_,
symbol_,
properties,
encryptedKeyIDs,
_newBaseURI,
maxBatchSize_,
collectionSize_
)
{}
}
Run evt-examples
-
Install dependencies
# you shoule install node. see https://nodejs.org/en/ npm install
-
deploy & compile contract with hardhat
# compile contracts npx hardhat compile # run local network, get test address npx hardhat node # deploy contract npx hardhat run --network localhost scripts/deploy-myEvt.ts # you can get Transaction hash, Contract address, # From address, Gas used etc. in your terminal console # you can also get accounts by run tasks npx hardhat run tasks/accounts.ts
-
run test script for MyEVT.sol
# run test script npx hardhat test test/test-myevt.ts
License
EVT is released under the GPLv3 License.