signMessage
Uses a smart account to sign and calculate an Ethereum-specific signature in EIP-191 format: keccak256("\x19Ethereum Signed Message:\n" + len(message) + message)).
With the calculated signature, you can:
- use
verifyMessageto verify the signature. - use
recoverMessageAddressto recover the signing address from a signature.
Usage
import { smartAccountClient } from "./smartAccountClient"
const hash = await smartAccountClient.signMessage({
message: "build with smart accounts!"
})import { ENTRYPOINT_ADDRESS_V07, createSmartAccountClient } from "permissionless"
import { privateKeyToSimpleSmartAccount } from "permissionless/accounts"
import { createPimlicoPaymasterClient } from "permissionless/clients/pimlico"
import { createPublicClient, http } from "viem"
import { sepolia } from "viem/chains"
export const publicClient = createPublicClient({
transport: http("https://sepolia.rpc.thirdweb.com"),
})
// if using a paymaster
const paymasterClient = createPimlicoPaymasterClient({
transport: http("https://api.pimlico.io/v2/sepolia/rpc?apikey=YOUR_PIMLICO_API_KEY"),
entryPoint: ENTRYPOINT_ADDRESS_V07,
})
export const simpleSmartAccount = await privateKeyToSimpleSmartAccount(publicClient, {
privateKey: "0xPRIVATE_KEY",
factoryAddress: "0x91E60e0613810449d098b0b5Ec8b51A0FE8c8985", // simple version
entryPoint: ENTRYPOINT_ADDRESS_V07,
})
export const smartAccountClient = createSmartAccountClient({
account: simpleSmartAccount,
entryPoint: ENTRYPOINT_ADDRESS_V07,
chain: sepolia, // or whatever chain you are using
bundlerTransport: http("https://api.pimlico.io/v2/sepolia/rpc?apikey=YOUR_PIMLICO_API_KEY"),
middleware: {
sponsorUserOperation: paymasterClient.sponsorUserOperation, // if using a paymaster
},
})Returns
- Type:*
Hex
The signed message.
Parameters
message
- Type:
string | { raw: Hex | ByteArray }
Message to sign.