Gelato Raas Starter-Kit

This starter helps to quick start developing on OpTest Please visit the public website and the Block explorer

Funding

You would need Sepolia test Eth. Please go to one of these faucets and grab some eth:

• Alchemy Faucet
• Infura Faucet
• pow Faucet

Once you have Sepolia Eth you will have to bridge to OpTest eth. Please login in on Sepolia chain and brigde the required amount, it will take 8-10 minuts to confirm.

Getting Started

1. Install project dependencies:

yarn install

in our package.json we have already included gelato-raasprotocol-kit the 2. Create a .env file with your private config:

cp .env.example .env

You will need to input your Private Key PK and GELATO_RELAY_API_KEY for sponsored transactions, you an get it at https://relay.gelato.network

Account Abstraction (AA)

As part of the Gelato Raas AA offerings, we have deployed a custom safe-sdk creating following packages

Package	SDK
Safe Protocol Kit	gelato-raas-protocol-kit
Safe AA Kit	gelato-raas-account-abstraction-kit
Safe Relay Kit	gelato-raas-relay-kit

In the Raas AA UI starter Kit we showcase how to implement AA with web3Auth for social login, Safe as smart contract wallet and Gelato Relay for Gasless transactions. A live demo on zKatana can be seen here: https://gelato-raas-op-ui.web.app/

Here we are going to show the two different ways to send Gasless Transactions through a Safe, either sponsoring the gas with 1Balance or paying with the Safe balance (SyncFee)

In both examples we are going to increment()the counter on this simple contract deployed on OpTest https://blockscout.op-testnet.gelato.digital/address/0xA47789e8C1caC47Bd891e33C97cB3C6722037282

Using 1Balance

const safeAccountAbstraction = new AccountAbstraction(signer);
  const sdkConfig: AccountAbstractionConfig = {
    relayPack,
  };
  await safeAccountAbstraction.init(sdkConfig);

  // Create a transaction object
  const txConfig = {
    TO: targetAddress,
    DATA:counterContract.interface.encodeFunctionData("increment", []),
    // Options:
    GAS_LIMIT: gasLimit,
    VALUE:"0"
  };

  const predictedSafeAddress = await safeAccountAbstraction.getSafeAddress();
  console.log({ predictedSafeAddress });

  const isSafeDeployed = await safeAccountAbstraction.isSafeDeployed();
  console.log({ isSafeDeployed });

  const safeTransactions: MetaTransactionData[] = [
    {
      to: txConfig.TO,
      data: txConfig.DATA,
      value: txConfig.VALUE,
      operation: OperationType.Call,
    },
  ];
  const options: MetaTransactionOptions = {
    gasLimit: txConfig.GAS_LIMIT,
    isSponsored: true,
  };

  const response = await safeAccountAbstraction.relayTransaction(
    safeTransactions,
    options
  );
  console.log(`https://relay.gelato.digital/tasks/status/${response} `);

Output

/Users/javiermac/Documents/GELATO/20-RAAS/gelato-raas-starter/src/aa-safe-gasless
{ predictedSafeAddress: '0xf35EAc5DA7d808264a9c7B1C19E2946201320522' }
{ isSafeDeployed: true }

Using SyncFee

Remember to fund your Safe as the gas fees will be deducted from your safe balance

  const gasLimit = "10000000";
  
  const safeAccountAbstraction = new AccountAbstraction(signer);
  const sdkConfig: AccountAbstractionConfig = {
    relayPack,
  };
  await safeAccountAbstraction.init(sdkConfig);

  const txConfig = {
    TO: targetAddress,
    DATA: counterContract.interface.encodeFunctionData("increment", []),,
    VALUE: "0",
    // Options:
    GAS_LIMIT: gasLimit,
    GAS_TOKEN: ethers.constants.AddressZero,
  };

  const predictedSafeAddress = await safeAccountAbstraction.getSafeAddress();
  console.log({ predictedSafeAddress });

  const isSafeDeployed = await safeAccountAbstraction.isSafeDeployed();
  console.log({ isSafeDeployed });

  const safeTransactions: MetaTransactionData[] = [
    {
      to: txConfig.TO,
      data: txConfig.DATA,
      value: txConfig.VALUE,
      operation: OperationType.Call,
    },
  ];
  const options: MetaTransactionOptions = {
    gasLimit: txConfig.GAS_LIMIT,
    gasToken: txConfig.GAS_TOKEN,
    isSponsored: false,
  };

  const response = await safeAccountAbstraction.relayTransaction(
    safeTransactions,
    options
  );
  console.log(`https://relay.gelato.digital/tasks/status/${response} `);

Output

$ ts-node src/aa-safe-gasless/aaSyncFee.ts
/Users/javiermac/Documents/GELATO/20-RAAS/gelato-raas-starter/src/aa-safe-gasless
{ predictedSafeAddress: '0xf35EAc5DA7d808264a9c7B1C19E2946201320522' }
{ isSafeDeployed: true }
https://relay.gelato.digital/tasks/status/0xf5ec5234b97a42a3fa32a1593dc34e44130b6801d9fff9ad1246f65cda0f8ecc 
✨  Done in 24.41s.

Working with Safes

We have deployed and verified the the Safe contracts and also we forked the safe sdk to be able to test in OpTest. The forked safe-sdk is published under the package gelato-raas-protocol-kit@1.3.1. The relay-kit and account.abstraction-kit will be published very soon.

Create a Safe

Code can be seen here

yarn create-safe

yarn run v1.22.19
$ ts-node src/create-safe.ts
Network:  { chainId: 42069, name: 'unknown' }
Safe created with address:  0xf35EAc5DA7d808264a9c7B1C19E2946201320522
✨  Done in 13.27s.

Increment counter

We have deployed a SimpleCounter contract where we are going to increment the counter through a safe transaciton. Here the code

yarn increment-counter

$ ts-node src/increment-counter.ts
TxHash:  0xce9271aba30a6e68a36f3ce75690ea63e2258d7d9a1d2bb69d58b10ae4fd70d7
✨  Done in 15.47s.