I'm trying to use the web3 Batch in order to call token balances all together. When I call batch.execute() it returns undefined instead of the resolved requests that have been added to the batch.
Can someone enlighten me where I am messing things up?
Here is my code.
async generateContractFunctionList(
address: Address,
tokens: Token[],
blockNumber: number
) {
const batch = new this.web3.BatchRequest();
for (let i = 0; i < tokens.length; i++) {
const contract = new this.web3.eth.Contract(balanceABI as AbiItem[]);
contract.options.address = tokens[i].address;
batch.add(
contract.methods
.balanceOf(address.address)
.call.request({}, blockNumber)
);
}
return batch;
}
async updateBalances() {
try {
const addresses = await this.addressService.find();
const tokens = await this.tokenService.find();
const blockNumber = await this.web3.eth.getBlockNumber();
for (let i = 0; i < addresses.length; i++) {
const address = addresses[i];
const batch = this.generateContractFunctionList(address, tokens, blockNumber);
const response = await (await batch).execute();
console.log(response); //returns undefined
}
} catch (error: unknown) {
if (error instanceof Error) {
console.log(`UpdateBalanceService updateBalances`, error.message);
}
}
}
why does batch.execute() not return anything and is void? I went by this example from this article and modified it to my needs but did not change too much of the stuff that could be messing it up.
https://chainstack.com/the-ultimate-guide-to-getting-multiple-token-balances-on-ethereum/
when I add a callback function to the "batch.add" and console log, balance get logged to console. But I am trying to use async await on the .execute() so how can I get a result from the method calls with await batch.execute() and have all the callback results in there like its written in the blog post.
