Privy signer

Privy is an embedded wallet provider that simplifies user onboarding for dApps, enabling seamless authentication and key management.

Create the Privy provider

Follow Privy’s quickstart guide, to set up the Privy provider in your app.

import { PrivyProvider } from '@privy-io/react-auth';
import {WagmiProvider} from '@privy-io/wagmi'; 
import {QueryClient, QueryClientProvider} from '@tanstack/react-query';
import {createConfig} from '@privy-io/wagmi'; 

import { http } from "viem";
import { arbitrumSepolia } from "viem/chains";


const queryClient = new QueryClient(); 
 
const config = createConfig({ 
  chains: [arbitrumSepolia], 
  transports: { 
    [arbitrumSepolia.id]: http(), 
  }, 
}); 

<PrivyProvider
  appId={"<Privy-App-Id>"}
  config={{
    embeddedWallets: {
      createOnLogin: "all-users",
    },
  }}
>
   <QueryClientProvider client={queryClient}>
    <WagmiProvider config={config}>
        {children}
     </WagmiProvider>
  </QueryClientProvider>
</PrivyProvider>;
 

Integration

In your app, set Privy's embedded wallet as the active wallet for wagmi by using the useWallets react hook (after Privy login).

import { useWallets } from "@privy-io/react-auth";


const { wallets } = useWallets();
const embeddedWallet = wallets.find(
  (wallet) => wallet.walletClientType === "privy"
);

You will have access to a Privy signer object as shown below that you can pass as an owner to createSafeSmartAccount:

import {
    providerToSmartAccountSigner
} from "@cometh/connect-core-sdk";


if (!embeddedWallet) throw new Error("User does not have an embedded wallet");

const privyProvider = await embeddedWallet!.getEthereumProvider()
const signer = await providerToSmartAccountSigner(privyProvider);