@newton-protocol/evt-lib

0.1.7 • Public • Published

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

  1. 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_;
    }
}
  1. 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

  1. Install dependencies

    # you shoule install node. see https://nodejs.org/en/
    npm install
  2. 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
  3. run test script for MyEVT.sol

    # run test script
    npx hardhat test test/test-myevt.ts

License

EVT is released under the GPLv3 License.

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Install

npm i @newton-protocol/evt-lib

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Version

0.1.7

License

GPLv3

Unpacked Size

1.2 MB

Total Files

165

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Collaborators

  • naqunmiemie
  • damonhe
  • newton-develop