Create wallets

Set up wallet contracts¶

Clone the wallet contracts from the zkevm-contracts repository and install the npm libraries.

git clone https://github.com/0xPolygonHermez/zkevm-contracts.git
cd zkevm-contracts
npm i

Create wallets¶

Create a wallets.js file.
```
cd zkevm-contracts
nano wallets.js
```

Copy/paste the JavaScript code below.

const ethers = require("ethers");

async function main() {
  const arrayNames = [
    "## Deployment Address",
    "\\n\\n## Trusted sequencer",
    "\\n\\n## Trusted aggregator",
  ];
  for (let i = 0; i < arrayNames.length; i++) {
    const wallet = ethers.Wallet.createRandom();
    console.log(arrayNames[i]);
    console.log(`Address: ${wallet.address}`);
    console.log(`PrvKey: ${wallet.privateKey}`);
    console.log(`mnemonic: "${wallet.mnemonic.phrase}"`);

    const keystoreJson = await wallet.encrypt("password");
    console.log(`keystore: ${keystoreJson}`);
  }
}

main().catch((e) => {
  console.error(e);
  process.exit(1);
});

Generate the wallets.
```
node wallets.js | tee wallets.txt
```

Prepare environment variables¶

Edit the environment variables file.

cp .env.example .env        # copies .env.example file into .env
nano .env                   # opens .env file for editing

Set the following variables.

MNEMONIC="..."            # from wallets.txt Deployment Address mnemonic
INFURA_API_KEY="..."      # your API Key from Infura account
ETHERSCAN_API_KEY="..."   # your Etherscan API key

Send 1 Sepolia ETH to the deployment address wallet listed in wallets.txt.

Edit deployment configuration¶

Open the deploy-parameters.json file.

cd zkevm-contracts/deployment/v2
cp deploy_parameters.json.example deploy_parameters.json
nano deploy_parameters.json

Edit the following parameters to match the generated wallet parameters.
- trustedSequencer: trusted sequencer address in wallets.txt.
- trustedAggregator: trusted aggregated address in wallets.txt.
- admin: deployment address in wallets.txt.
- zkEVMOwner: deployment address in wallets.txt.
- timelockAddress: deployment address in wallets.txt.
- initialZkEVMDeployerAddress: deployment address in wallets.txt.
- zkEVMDeployerAddress: deployment address in wallets.txt.
- emergencyCouncilAddress: deployment address in wallets.txt.
- deployerPvtKey: deployment private key in wallets.txt.

Open the create_rollup_parameters.json file.

cd zkevm-contracts/deployment/v2
cp create_rollup_parameters.json.example create_rollup_parameters.json
vim create_rollup_parameters.json

Edit the following parameters to match the rollup parameters
- trustedSequencer: trusted sequencer address in wallets.txt.
- adminZkEVM: deployment address in wallets.txt.

Deploy & verify contracts¶

cd back to zkevm-contract root directory and run the deployment scripts.

Install Hardhat:

cd ..
npm i @openzeppelin/hardhat-upgrades

Deploy Polygon zkEVM deployer

npx hardhat run deployment/v2/2_deployPolygonZKEVMDeployer.ts --network sepolia

You should see output that looks like this:

#######################

polygonZkEVMDeployer deployed on:  0xB1A5BA61fBAD71Ba52d70B769d6A994c01b40983

Verify deployer

npx hardhat run deployment/v2/verifyzkEVMDeployer.js --network sepolia

You should see ouput that looks like this:

The contract 0xB1A5BA61fBAD71Ba52d70B769d6A994c01b40983 has already been verified.
https://sepolia.etherscan.io/address/0xB1A5BA61fBAD71Ba52d70B769d6A994c01b40983#code

Prepare testnet

npx hardhat run deployment/testnet/prepareTestnet.ts --network sepolia

You should see output that looks like this:

#######################

pol deployed to: 0x2B2Ef864542EA38657221393B0A18215e5c3fc7e

And now if you go to sepolia scan, you should also see that under your account, there’s a new Pol Erc-20 token created with the balance of 19,900,000 tokens.