Deploy accounts on behalf of users

Argent allows dapps to deploy accounts on behalf of users, enhancing user experience by simplifying the onboarding process.

Step 1: Install StarknetKit

You'll need StarknetKit

• Version 2.2.7 or newer

• required in order to get the deployment data for an account

• can be installed with:

pnpm add starknetkit

Step 2: Retrieve the deployment data

Using this SNIP, your dapp can retrieve the deployment data required to deploy the user’s account.

When connecting with starknetkit, use the wallet object returned by connect .

If an account is already deployed, this will throw an exception (so it will need to be managed on client side)

const { wallet, connectorData } = res; 
const deploymentData = await wallet.request({ 
type: "wallet_deploymentData",
 })

deploymentData is an object of type:

type DeployAccountContractPayload = {
    classHash: string;
    constructorCalldata?: RawArgs;
    addressSalt?: BigNumberish;
    contractAddress?: string;
};

Step 3: Deploy on behalf of the user

Option 1: Now that you have the user's deployment data, you can deploy the account

Option 2: You can use AVNU’s paymaster feature to deploy the account at the same time as a paymaster transaction. See iteration flow.

Option 1 detailed workflow:

1. Create a relayer in your code:

const provider = new RpcProvider({
    nodeUrl: "https://free-rpc.nethermind.io/sepolia-juno/rpc/v0_7",
  });

  const relayer = new Account(
    provider,
    process.env.REACT_APP_ADDRESS,
    process.env.REACT_APP_PK
  );

1. Configure transaction params

const fees = await account.estimateAccountDeployFee(deployPayload, {version: "0x03"});
const deployDetails = {
  maxFee: fees.suggestedMaxFee, 
  resourceBounds: fees.resourceBounds,
  version: "0x03",
};

1. Execute the deployment transaction using account.deployContract

const tx = await account.deployContract({
    unique: false,
    classHash: deployPayload.classHash,
    constructorCalldata: deployPayload.constructorCalldata,
    salt: deployPayload.addressSalt,
    }, deployDetails)  

That's it, the account contract should be deployed.