Setup Smart Account Client

How to setup your smart account client :

SDK Core

import { 
    createComethPaymasterClient, 
    createSafeSmartAccount, 
    createSmartAccountClient,
    providerToSmartAccountSigner
} from "@cometh/connect-core-sdk";
import { arbitrumSepolia } from "viem/chains";
import { privateKeyToAccount } from "viem/accounts";
import { http } from "viem";

const bundlerUrl = process.env.NEXT_PUBLIC_4337_BUNDLER_URL;
const paymasterUrl = process.env.NEXT_PUBLIC_4337_PAYMASTER_URL;

const signer = await providerToSmartAccountSigner(
    window.ethereum
);

const publicClient = createPublicClient({
    chain: arbitrumSepolia,
    transport: http(),
    cacheTime: 60_000,
    batch: {
        multicall: { wait: 50 },
    },
});
​
const smartAccount = await createSafeSmartAccount({
    chain: arbitrumSepolia,
    publicClient,
    signer,
})

const paymasterClient = await createComethPaymasterClient({
    transport: http(paymasterUrl),
    chain: arbitrumSepolia,
    publicClient,
});

 const smartAccountClient = createSmartAccountClient({
    account: smartAccount,
    chain,
    bundlerTransport: http(bundlerUrl),
    paymaster: paymasterClient,
    userOperation: {
        estimateFeesPerGas: async () => {
            return await paymasterClient.getUserOperationGasPrice();
        },
    }
})

Permissionless

import { RHINESTONE_ATTESTER_ADDRESS, getSmartSessionsValidator } from "@rhinestone/module-sdk";
import { toSafeSmartAccount } from "permissionless/accounts";
import { createSmartAccountClient} from "permissionless";
import { createPaymasterClient, entryPoint07Address } from "viem/account-abstraction";
import { createPimlicoClient } from "permissionless/clients/pimlico"
import { http, type Hex, type PublicClient, createPublicClient } from "viem";
import { arbitrumSepolia } from "viem/chains";


const bundlerUrl = process.env.NEXT_PUBLIC_4337_BUNDLER_URL;
const paymasterUrl = process.env.NEXT_PUBLIC_4337_PAYMASTER_URL;

const smartSessions = getSmartSessionsValidator({});
const smartAccount = await toSafeSmartAccount({
    client: publicClient,
    owners: [signer],
    version: "1.4.1",
    entryPoint: {
        address: entryPoint07Address,
        version: "0.7",
    },
    safe4337ModuleAddress: "0x7579EE8307284F293B1927136486880611F20002",
    erc7579LaunchpadAddress: "0x7579011aB74c46090561ea277Ba79D510c6C00ff",
    attesters: [
        RHINESTONE_ATTESTER_ADDRESS,
    ],
    attestersThreshold: 1,
    validators: [
        {
            address: smartSessions.address,
            context: smartSessions.initData,
        },
    ],
});

const paymasterClient = await createPaymasterClient({
    transport: http(paymasterUrl)
});

const pimlicoClient = createPimlicoClient({
    transport: http(paymasterUrl),
    entryPoint: {
        address: entryPoint07Address,
        version: "0.7",
    },
})

const smartAccountClient = createSmartAccountClient({
    account: smartAccount,
    chain: arbitrumSepolia,
    bundlerTransport: http(bundlerUrl, {
        retryCount: 5,
        retryDelay: 1000,
        timeout: 20_000,
    }),
    paymaster: paymasterClient,
    userOperation: {
        estimateFeesPerGas: async () => {
            return (await pimlicoClient.getUserOperationGasPrice()).fast
        },
    },
});