ethers 를 활용한 바오밥 연결

nice.js

import {ethers} from "ethers";

abi = [
    {
        "constant": true,
        "inputs": [
            {
                "name": "",
                "type": "uint256"
            }
        ],
        "name": "adminGroup",
        "outputs": [
            {
                "name": "",
                "type": "address"
            }
        ],
        "payable": false,
        "stateMutability": "view",
        "type": "function"
    },
    {
        "constant": false,
        "inputs": [
            {
                "name": "_toAddCreator",
                "type": "address"
            }
        ],
        "name": "addCreator",
        "outputs": [
            {
                "name": "",
                "type": "bool"
            }
        ],
        "payable": false,
        "stateMutability": "nonpayable",
        "type": "function"
    },
    {
        "constant": false,
        "inputs": [
            {
                "name": "_sigStockOwner",
                "type": "address"
            }
        ],
        "name": "changeSigStockOwnership",
        "outputs": [
            {
                "name": "",
                "type": "bool"
            }
        ],
        "payable": false,
        "stateMutability": "nonpayable",
        "type": "function"
    },
    {
        "constant": false,
        "inputs": [
            {
                "name": "_admin",
                "type": "address"
            },
            {
                "name": "_num",
                "type": "uint8"
            }
        ],
        "name": "deleteSigStockAdmin",
        "outputs": [
            {
                "name": "",
                "type": "bool"
            }
        ],
        "payable": false,
        "stateMutability": "nonpayable",
        "type": "function"
    },
    {
        "constant": false,
        "inputs": [
            {
                "name": "_title",
                "type": "string"
            },
            {
                "name": "_description",
                "type": "string"
            },
            {
                "name": "_creatorRate",
                "type": "uint256"
            },
            {
                "name": "_maxDivideValue",
                "type": "uint256"
            }
        ],
        "name": "createProduct",
        "outputs": [
            {
                "name": "",
                "type": "address"
            }
        ],
        "payable": false,
        "stateMutability": "nonpayable",
        "type": "function"
    },
    {
        "constant": true,
        "inputs": [
            {
                "name": "",
                "type": "address"
            },
            {
                "name": "",
                "type": "uint256"
            }
        ],
        "name": "creatorProducts",
        "outputs": [
            {
                "name": "",
                "type": "address"
            }
        ],
        "payable": false,
        "stateMutability": "view",
        "type": "function"
    },
    {
        "constant": true,
        "inputs": [],
        "name": "SIGSTOCK_OWNER",
        "outputs": [
            {
                "name": "",
                "type": "address"
            }
        ],
        "payable": false,
        "stateMutability": "view",
        "type": "function"
    },
    {
        "constant": false,
        "inputs": [
            {
                "name": "_productAddress",
                "type": "address"
            }
        ],
        "name": "addCustomProduct",
        "outputs": [
            {
                "name": "",
                "type": "bool"
            }
        ],
        "payable": false,
        "stateMutability": "nonpayable",
        "type": "function"
    },
    {
        "constant": false,
        "inputs": [
            {
                "name": "_admin",
                "type": "address"
            },
            {
                "name": "_num",
                "type": "uint8"
            }
        ],
        "name": "addSigStockAdmin",
        "outputs": [
            {
                "name": "",
                "type": "bool"
            }
        ],
        "payable": false,
        "stateMutability": "nonpayable",
        "type": "function"
    },
    {
        "constant": false,
        "inputs": [
            {
                "name": "_toDeleteCreator",
                "type": "address"
            }
        ],
        "name": "deleteCreator",
        "outputs": [
            {
                "name": "",
                "type": "bool"
            }
        ],
        "payable": false,
        "stateMutability": "nonpayable",
        "type": "function"
    },
    {
        "constant": true,
        "inputs": [
            {
                "name": "_creator",
                "type": "address"
            }
        ],
        "name": "getNumCreatorProduct",
        "outputs": [
            {
                "name": "",
                "type": "uint256"
            }
        ],
        "payable": false,
        "stateMutability": "view",
        "type": "function"
    },
    {
        "constant": true,
        "inputs": [
            {
                "name": "",
                "type": "address"
            }
        ],
        "name": "isCreator",
        "outputs": [
            {
                "name": "",
                "type": "bool"
            }
        ],
        "payable": false,
        "stateMutability": "view",
        "type": "function"
    },
    {
        "constant": true,
        "inputs": [
            {
                "name": "",
                "type": "address"
            }
        ],
        "name": "SIGSTOCK_ADMINS",
        "outputs": [
            {
                "name": "",
                "type": "bool"
            }
        ],
        "payable": false,
        "stateMutability": "view",
        "type": "function"
    },
    {
        "anonymous": false,
        "inputs": [
            {
                "indexed": true,
                "name": "_from",
                "type": "address"
            },
            {
                "indexed": true,
                "name": "_product",
                "type": "address"
            }
        ],
        "name": "CreatedProduct",
        "type": "event"
    },
    {
        "anonymous": false,
        "inputs": [
            {
                "indexed": true,
                "name": "_from",
                "type": "address"
            },
            {
                "indexed": true,
                "name": "_product",
                "type": "address"
            }
        ],
        "name": "AddedCustomProduct",
        "type": "event"
    },
    {
        "anonymous": false,
        "inputs": [
            {
                "indexed": true,
                "name": "newCreator",
                "type": "address"
            }
        ],
        "name": "AddedCreator",
        "type": "event"
    },
    {
        "anonymous": false,
        "inputs": [
            {
                "indexed": true,
                "name": "toDeleteCreator",
                "type": "address"
            }
        ],
        "name": "DeletedCreator",
        "type": "event"
    },
    {
        "anonymous": false,
        "inputs": [
            {
                "indexed": true,
                "name": "newAdmin",
                "type": "address"
            }
        ],
        "name": "AddedAdmin",
        "type": "event"
    },
    {
        "anonymous": false,
        "inputs": [
            {
                "indexed": true,
                "name": "toDeleteAdmin",
                "type": "address"
            }
        ],
        "name": "DeletedAdmin",
        "type": "event"
    },
    {
        "anonymous": false,
        "inputs": [
            {
                "indexed": true,
                "name": "_newOwner",
                "type": "address"
            }
        ],
        "name": "ChangedSigStockOwner",
        "type": "event"
    }
];

contractAddress = "0x96cb79083270e968cbaca419ed7c90bf94ced8ad";

provider = new ethers.providers.JsonRpcProvider('https://api.baobab.klaytn.net:8651');

contract = new ethers.Contract(contractAddress, abi, provider);