@coinbase/cdp-sdk
Version:
SDK for interacting with the Coinbase Developer Platform Wallet API
50 lines • 1.9 kB
JavaScript
import { encodeFunctionData, erc20Abi } from "viem";
import { getErc20Address } from "./utils.js";
import { mapChainToNetwork } from "../../../accounts/evm/chainToNetworkMapper.js";
/**
* Transfer an amount of a token from a network-scoped account to another account.
* This function is used for accounts that are scoped to a specific network and use
* a wallet client for transaction execution instead of the API client.
*
* @param walletClient - The wallet client to use for transaction execution.
* @param from - The account to send the transaction from.
* @param transferArgs - The transfer options.
* @returns The result of the transfer.
*/
export async function transferWithViem(walletClient, from, transferArgs) {
const token = transferArgs.token;
const to = typeof transferArgs.to === "string" ? transferArgs.to : transferArgs.to.address;
const value = transferArgs.amount;
if (token === "eth") {
const hash = await walletClient.sendTransaction({
account: from.address,
to,
value,
});
return { transactionHash: hash };
}
const network = mapChainToNetwork(walletClient.chain);
const erc20Address = getErc20Address(token, network);
// First approve the transfer
await walletClient.sendTransaction({
account: from.address,
to: erc20Address,
data: encodeFunctionData({
abi: erc20Abi,
functionName: "approve",
args: [to, value],
}),
});
// Then execute the transfer
const hash = await walletClient.sendTransaction({
account: from.address,
to: erc20Address,
data: encodeFunctionData({
abi: erc20Abi,
functionName: "transfer",
args: [to, value],
}),
});
return { transactionHash: hash };
}
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