script to commit matic xc transfers

Author: aalavandhan

hardhat.config.js

@@ -94,7 +94,7 @@ module.exports = {
       url: 'https://eth-goerli.alchemyapi.io/v2/' + process.env.ALCHEMY_SECRET
     },
     dev2MumbaiSatChain: {
-      url: 'https://matic-testnet-archive-rpc.bwarelabs.com'
+      url: 'https://polygon-mumbai.infura.io/v3/' + process.env.INFURA_SECRET
     },
 
     prodEthereumBaseChain: {

helpers/contracts.js

@@ -50,11 +50,11 @@ const getCompiledContractFactory = (ethers, contract) => {
 };
 
 const deployContract = async (ethers, contractName, signer, args, txParams) => {
-  console.log("Deploying", contractName)
+  console.log('Deploying', contractName);
   const Factory = await getCompiledContractFactory(ethers, contractName);
   const contract = await Factory.connect(signer).deploy(...args, txParams);
   await contract.deployTransaction.wait(2);
-  console.log("Deployed")
+  console.log('Deployed');
   return contract;
 };
 
@@ -71,7 +71,7 @@ const deployProxyContract = async (
   initializerDef,
   txParams,
 ) => {
-  console.log("Deploying proxy", contractName)
+  console.log('Deploying proxy', contractName);
   const ProxyAdminFactory = await getCompiledContractFactory(
     ethers,
     'ProxyAdmin',
@@ -84,7 +84,7 @@ const deployProxyContract = async (
     txParams,
   );
   await contract.deployTransaction.wait(2);
-  console.log("Deployed")
+  console.log('Deployed');
 
   const defaultProxyAdmin = ProxyAdminFactory.connect(signer).attach(
     await getAdminAddress(signer.provider, contract.address),

package.json

@@ -18,6 +18,7 @@
     "lint"
   ],
   "dependencies": {
+    "@maticnetwork/maticjs": "^2.0.43",
     "@openzeppelin/contracts": "^3.4.0",
     "@openzeppelin/contracts-upgradeable": "^3.3.0",
     "@openzeppelin/upgrades": "^2.8.0",

tasks/ops/xc_transfer.js

@@ -163,3 +163,47 @@ txTask('matic:xc_transfer', 'Executes cross chain transfer through matic')
 
     console.log(txR.transactionHash);
   });
+
+txTask(
+  'matic:xc_transfer:commit',
+  'Commits the cross chain transfer from matic to base chain',
+)
+  .addParam('txHash', 'The transaction hash of the xc transfer on matic')
+  .addParam('baseChainNetwork', 'The network name base chain')
+  .addParam('satChainNetwork', 'The network name matic satellite chain')
+  .setAction(async (args, hre) => {
+    const baseChainProvider = getEthersProvider(args.baseChainNetwork);
+    const satChainProvider = getEthersProvider(args.satChainNetwork);
+
+    const txParams = { gasPrice: args.gasPrice, gasLimit: args.gasLimit };
+    if (txParams.gasPrice == 0) {
+      txParams.gasPrice = await baseChainProvider.getGasPrice();
+    }
+    const sender = await loadSignerSync(args, baseChainProvider);
+    const senderAddress = await sender.getAddress();
+    console.log('Sender:', senderAddress);
+
+    const baseChainTransferGateway = await getDeployedContractInstance(
+      args.baseChainNetwork,
+      'matic/transferGateway',
+      baseChainProvider,
+    );
+
+    const maticPOSClient = new require('@maticnetwork/maticjs').MaticPOSClient({
+      network: baseChainProvider.includes('prod') ? 'mainnet' : 'testnet',
+      version: baseChainProvider.includes('prod') ? 'v1' : 'mumbai',
+      maticProvider: satChainProvider.connection.url,
+      parentProvider: baseChainProvider.connection.url,
+    });
+
+    const proof = await maticPOSClient.posRootChainManager.customPayload(
+      args.txHash,
+      await baseChainTransferGateway.SEND_MESSAGE_EVENT_SIG(),
+    );
+
+    const tx = await baseChainTransferGateway
+      .connect(sender)
+      .receiveMessage(proof);
+    const txR = await tx.wait();
+    console.log(txR.transactionHash);
+  });