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@madhavanmalolan
Created September 9, 2021 05:20
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const { ethers } = require("ethers");
const provider = new ethers.providers.InfuraProvider( network = "ropsten" , "Paste infura project id" )
provider.getBlockNumber().then(data => {
console.log("connected to ethereum. current block : " +data);
});
const contractAddress = "paste address";
const contractAbi = [
{
"inputs": [],
"stateMutability": "nonpayable",
"type": "constructor"
},
{
"anonymous": false,
"inputs": [
{
"indexed": true,
"internalType": "address",
"name": "_owner",
"type": "address"
},
{
"indexed": true,
"internalType": "address",
"name": "_spender",
"type": "address"
},
{
"indexed": false,
"internalType": "uint256",
"name": "_value",
"type": "uint256"
}
],
"name": "Approval",
"type": "event"
},
{
"anonymous": false,
"inputs": [
{
"indexed": true,
"internalType": "address",
"name": "_from",
"type": "address"
},
{
"indexed": true,
"internalType": "address",
"name": "_to",
"type": "address"
},
{
"indexed": false,
"internalType": "uint256",
"name": "_value",
"type": "uint256"
}
],
"name": "Transfer",
"type": "event"
},
{
"inputs": [
{
"internalType": "address",
"name": "_owner",
"type": "address"
},
{
"internalType": "address",
"name": "_spender",
"type": "address"
}
],
"name": "allowance",
"outputs": [
{
"internalType": "uint256",
"name": "remaining",
"type": "uint256"
}
],
"stateMutability": "view",
"type": "function"
},
{
"inputs": [
{
"internalType": "address",
"name": "_spender",
"type": "address"
},
{
"internalType": "uint256",
"name": "_value",
"type": "uint256"
}
],
"name": "approve",
"outputs": [
{
"internalType": "bool",
"name": "success",
"type": "bool"
}
],
"stateMutability": "nonpayable",
"type": "function"
},
{
"inputs": [
{
"internalType": "address",
"name": "_owner",
"type": "address"
}
],
"name": "balanceOf",
"outputs": [
{
"internalType": "uint256",
"name": "balance",
"type": "uint256"
}
],
"stateMutability": "view",
"type": "function"
},
{
"inputs": [],
"name": "decimals",
"outputs": [
{
"internalType": "uint8",
"name": "",
"type": "uint8"
}
],
"stateMutability": "view",
"type": "function"
},
{
"inputs": [],
"name": "mine",
"outputs": [
{
"internalType": "bool",
"name": "success",
"type": "bool"
}
],
"stateMutability": "nonpayable",
"type": "function"
},
{
"inputs": [],
"name": "name",
"outputs": [
{
"internalType": "string",
"name": "",
"type": "string"
}
],
"stateMutability": "view",
"type": "function"
},
{
"inputs": [],
"name": "symbol",
"outputs": [
{
"internalType": "string",
"name": "",
"type": "string"
}
],
"stateMutability": "view",
"type": "function"
},
{
"inputs": [],
"name": "totalSupply",
"outputs": [
{
"internalType": "uint256",
"name": "",
"type": "uint256"
}
],
"stateMutability": "view",
"type": "function"
},
{
"inputs": [
{
"internalType": "address",
"name": "_to",
"type": "address"
},
{
"internalType": "uint256",
"name": "_value",
"type": "uint256"
}
],
"name": "transfer",
"outputs": [
{
"internalType": "bool",
"name": "success",
"type": "bool"
}
],
"stateMutability": "nonpayable",
"type": "function"
},
{
"inputs": [
{
"internalType": "address",
"name": "_from",
"type": "address"
},
{
"internalType": "address",
"name": "_to",
"type": "address"
},
{
"internalType": "uint256",
"name": "_value",
"type": "uint256"
}
],
"name": "transferFrom",
"outputs": [
{
"internalType": "bool",
"name": "success",
"type": "bool"
}
],
"stateMutability": "nonpayable",
"type": "function"
}
]
const contract = new ethers.Contract(contractAddress, contractAbi, provider);
async function main() {
const name = await contract.name();
console.log(name);
contract.on("Transfer", function(from, to, value) {
console.log("New Transfer recorded from " + from + " to " + to + " for " + value +" coins ");
});
}
main();
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