Sending ERC20 in a loop fails because of nonce

[iamandi]

https://ethereum.org/fr/developers/tutorials/send-token-etherjs/
From the above example, I can have function to send ERC20 tokens, function is called send_token. If I have an array of 100 wallet addresses and I try to send tokens to all of them in for loop
// wallets = [ addresses ] for (let i = 0; i < wallets.length; i++) { send_token(wallets[i]) }
then it fails because of nonce mismatch. Does contract.transfer function takes care of nonce?

[zemse]

You can use NonceManager.

import { NonceManager } from "@ethersproject/experimental";

const walletSigner = new ethers.Wallet('0xprivatekey');
const walletWithNonceManager = new NonceManager(walletSigner);

// now use the walletWithNonceManager instead of walletSigner

On a side note, if you want to make 100 erc20 transfers, you can consider using Multisender contract (blog), as it will save a lot of intrinsic gas for you.