I'm trying to create a listener for incoming transactions with ethers.js (v5.6). According to the docs , to listen to incoming transactions you need to create this filter:
// List all token transfers *to* myAddress:
filter = {
address: tokenAddress,
topics: [
utils.id("Transfer(address,address,uint256)"),
null,
hexZeroPad(myAddress, 32)
]
};
Having this in my script gives me an error saying utils.id("Transfer(address,address,uint256)"), ReferenceError: utils is not defined
. I can't find anything in the docs about importing an utils package. Can anyone sort me out?
My full code:
async function incomingTransactions() {
if (loadedUser) {
console.log("User loaded", loadedUser)
let myAddress = loadedUser.publicKey
let filter = {
address: myAddress,
topics: [
utils.id("Transfer(address,address,uint256)"),
null,
hexZeroPad(myAddress, 32)
]
};
// let foo = await provider.getLogs(filter)
// console.log(foo)
}
console.log("No user loaded")
}
const interval = setInterval(function() {
incomingTransactions();
}, 5000);
Looks like utils
is part of the ethers
object, and hexZeroPad
and id
are part of utils
so you can use them like so:
const { ethers } = require("ethers"); // assuming commonjs
ethers.utils.id("Transfer(address,address,uint256)");
ethers.utils.hexZeroPad(myAddress, 32);
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