first initial working version of CCTP attestation script to help chec…

…k with circle attestation status to mint native USDC to destination

scripts/CCTP-attestation.ts

@@ -0,0 +1,43 @@
+/*
+ A script to help check if CCTP's attestation server to acquire signature to mint native USDC on arbitrum
+ To run: DEPLOYMENT=usdc BURN_TXN_HASH=0xc36edf38fe324b7a35a9d267d77d86feb542ce411060be6cd22d648cead7fb04 npx hardhat run scripts/CCTP-attestation.ts --network mainnet
+*/
+import hre from 'hardhat';
+import { DeploymentManager } from '../plugins/deployment_manager/DeploymentManager';
+import { default as config, requireEnv } from '../hardhat.config';
+
+async function main() {
+  const DEPLOYMENT = requireEnv('DEPLOYMENT');
+  const BURN_TXN_HASH = requireEnv('BURN_TXN_HASH');
+  const network = hre.network.name;
+  const dm = new DeploymentManager(network, DEPLOYMENT, hre, {
+    writeCacheToDisk: true
+  });
+  await dm.spider();
+
+  const transactionReceipt = await dm.hre.ethers.provider.getTransactionReceipt(BURN_TXN_HASH);
+  const eventTopic = dm.hre.ethers.utils.id('MessageSent(bytes)');
+  const log = transactionReceipt.logs.find((l) => l.topics[0] === eventTopic);
+  const messageBytes = dm.hre.ethers.utils.defaultAbiCoder.decode(['bytes'], log.data)[0];
+  const messageHash = dm.hre.ethers.utils.keccak256(messageBytes);
+  console.log(`Message hash: ${messageHash}`);
+  let attestationResponse = { status: 'pending', attestation: ''};
+  while (attestationResponse.status != 'complete') {
+    console.log(`Polling... https://iris-api.circle.com/attestations/${messageHash}`)
+    const response = await fetch(`https://iris-api.circle.com/attestations/${messageHash}`);
+    attestationResponse = await response.json();
+    console.log(`Response: ${JSON.stringify(attestationResponse)}`);
+    await new Promise(r => setTimeout(r, 2000));
+  }
+
+  console.log('Attestation complete! Please go invoke receiveMessage on targeted L2 CCTP\'s MessageTransmitterContract with the following to mint native USDC to destination:');
+  console.log(`receivingMessageBytes: ${messageBytes}`);
+  console.log(`signature: ${attestationResponse.attestation}`);
+}
+
+main()
+  .then(() => process.exit(0))
+  .catch((error) => {
+    console.error(error);
+    process.exit(1);
+  });