Sign a transaction on Ethereum/EVM

Sign an EVM transaction without broadcasting it to the network.

Use signTransaction to sign a transaction without sending it. This is useful when you need to prepare a signed transaction for later submission or for use with external services.

React

import { parseEther } from "viem";
import { useDynamicContext } from "@dynamic-labs/sdk-react-core";
import { isEthereumWallet } from "@dynamic-labs/ethereum";

const { primaryWallet } = useDynamicContext();

if (!primaryWallet || !isEthereumWallet(primaryWallet)) return null;

const walletClient = await primaryWallet.getWalletClient();

const signedTransaction = await walletClient.signTransaction({
  to: "0x...",
  value: parseEther("0.05"),
});

React Native

React Native

import { dynamicClient } from './dynamicClient'; // extended with ViemExtension
import { parseEther } from 'viem'

const wallet = dynamicClient.wallets.primary;
const walletClient = dynamicClient.viem.createWalletClient({ wallet });

const signedTransaction = await walletClient.signTransaction({
  to: "0x...",
  value: parseEther("0.05"),
});