Onboarding Users with Smart Wallets & Social Login

Smart Wallets move beyond the traditional 12-word seed phrase. By using Account Abstraction (ERC-4337 logic), you can offer users social login (Google, Apple) and biometric recovery, making your dApp feel like a standard web application.

Prerequisites

• Web3Auth or Privy: For social-to-key mapping.
• Safe (Gnosis) SDK: For deploying the smart contract account.
• Bundler RPC: To handle the UserOperations.

Getting Started

1. Initialize Social Login

Use a provider to generate a cryptographic key from a social identity.

import { Web3Auth } from "@web3auth/modal";

const web3auth = new Web3Auth({
  clientId: "YOUR_CLIENT_ID",
  chainConfig: { chainNamespace: "eip155", chainId: "0x1f" } // Rootstock Testnet
});

await web3auth.initModal();
const provider = await web3auth.connect();

2. Deploy the Smart Contract Wallet

Once the user is logged in, deploy a "Safe" wallet that they control. This wallet becomes their permanent on-chain identity.

import { SafeAccountPack } from '@safe-global/auth-kit';

const safeAccountPack = new SafeAccountPack();
await safeAccountPack.init({ provider, sdkConfig: { ... } });

const { protocolKit } = await safeAccountPack.signIn();
const address = await protocolKit.getAddress();
console.log(`User Smart Wallet: ${address}`);

Troubleshooting

Deployment Costs: Deploying a smart wallet is a transaction. It is best practice to combine this with a Gasless Relay (see the RIF Relay guide) so the user doesn't need rBTC for their first login.

Provider Latency: Social login providers can sometimes timeout. Implement a "Retry" logic in your UI to handle network hiccups gracefully.

Related Use Cases or Resources

• Safe Architecture on Rootstock

• Gasless Transactions Guide

• RIF Name Service (RNS)