WIP: Stub out bsc testnet and mainnet access via loom cli

configs/bscmainnet.json

@@ -0,0 +1,17 @@
+{
+    "ethPrivateKeyFile":
+      "ethereum_private_key",
+    "dappchainPrivateKeyFile":
+      "mainnet_private_key",
+
+    "dappchainEndpoint": "http://localhost:46658",
+
+    "loomGatewayEthAddress": "",
+
+    "chainId": "default",
+
+    "infuraURL": "https://bsc-dataseed1.binance.org",
+    "isBsc": true
+
+  }
+

configs/bsctestnet.json

@@ -0,0 +1,16 @@
+{
+    "ethPrivateKeyFile":
+      "ethereum_private_key",
+    "dappchainPrivateKeyFile":
+      "mainnet_private_key",
+
+    "dappchainEndpoint": "http://localhost:46658",
+
+    "loomGatewayEthAddress": "0x0cee0FB12205b9Ca9d4Fbed502091dEfD7ae6ff5",
+
+    "chainId": "default",
+
+    "infuraURL": "https://data-seed-prebsc-1-s1.binance.org:8545",
+    "isBsc": true
+  }
+

configs/mainnet.json

@@ -8,6 +8,8 @@
 
   "loomGatewayEthAddress": "0xfcF1E3fA575A313fd81feA2caA06269B49F1A528",
 
-  "chainId": "default"
+  "chainId": "default",
+
+  "infuraURL": "https://mainnet.infura.io/v3/"
 
 }

package.json

@@ -39,7 +39,7 @@
     "ethereumjs-tx": "^1.3.7",
     "ethereumjs-util": "^5.2.0",
     "ethereumjs-wallet": "^0.6.3",
-    "loom-js": "1.57.0",
+    "loom-js": "1.75.2",
     "lowdb": "^1.0.0",
     "repl.history": "^0.1.4",
     "rlp": "^2.1.0",

src/index.ts

@@ -6,8 +6,9 @@ import { ethers } from 'ethers'
 import { CryptoUtils, Contracts, Address, LocalAddress, Client, EthersSigner } from "loom-js";
 import { createDefaultClient, sleep } from 'loom-js/dist/helpers';
 
-const ERC20ABI = require('loom-js/dist/mainnet-contracts/ERC20.json')
-const ERC20GatewayABI = require('loom-js/dist/mainnet-contracts/ERC20Gateway.json')
+//const ERC20GatewayABI = require('loom-js/dist/mainnet-contracts/ERC20Gateway.json')
+import { abi as ERC20ABI } from 'loom-js/dist/mainnet-contracts/ERC20Factory'
+import { abi as ERC20GatewayABI } from 'loom-js/dist/mainnet-contracts/EthereumGatewayV1Factory'
 
 // LOOM has 18 decimals
 const coinMultiplier = new BN(10).pow(new BN(18));
@@ -46,6 +47,8 @@ interface IConfig {
   dappchainPrivateKeyFile: string;
   ethPrivateKeyFile: string;
   chainId: string;
+  infuraURL: string;
+  isBsc: boolean;
 }
 
 interface IUser {
@@ -59,27 +62,35 @@ interface IUser {
   ethAddress: string;
 }
 
-const ethEndPoint =  `https://mainnet.infura.io/v3/${process.env.INFURA_API_KEY}`
 
 /**
  * Creates clients to interact with Loom Mainnet and Ethereum Mainnet on behalf of a user.
  *
  * @param config Network and key configuration.
  */
 async function createUser(config: IConfig): Promise<IUser> {
-  if (!process.env.INFURA_API_KEY) {
-    throw new Error("INFURA_API_KEY env var not set")
+  let ethEndPoint  = ``
+  if(config.isBsc) {
+     ethEndPoint =  `${config.infuraURL}`
   }
-
+  else {
+    if (!process.env.INFURA_API_KEY) {
+     throw new Error("INFURA_API_KEY env var not set")
+    }
+     ethEndPoint =  `${config.infuraURL}${process.env.INFURA_API_KEY}`
+  }
+
   const dappchainPrivateKey = fs.readFileSync(config.dappchainPrivateKeyFile, 'utf-8').toString().trim()
   const ethPrivateKey = fs.readFileSync(config.ethPrivateKeyFile, 'utf-8').toString().trim()
 
+
   const { client, publicKey } = createDefaultClient(
     dappchainPrivateKey,
     config.dappchainEndpoint,
     config.chainId
   )
 
+  console.log(`Connecting to EthEndpoint -${ethEndPoint}`)
   const provider = new ethers.providers.JsonRpcProvider(ethEndPoint)
   const wallet = new ethers.Wallet(ethPrivateKey, provider)
   const ethAddress = await wallet.getAddress()
@@ -120,8 +131,10 @@ async function mapAccountsAsync(
     return
   }
 
+
   const signer = new EthersSigner(wallet)
   console.log(`Mapping ${loomAddress} to ${ethAddress}...`)
+
   await mapper.addIdentityMappingAsync(loomAddress, ethAddress, signer)
   console.log('Mapping complete')
 }
@@ -147,6 +160,7 @@ async function depositToLoomGatewayAsync(
     await dappchainLoom.approveAsync(gateway.address, amount);
     const userEthAddress = Address.fromString(`eth:${user.ethAddress}`);
     const loomEthAddress = Address.fromString(`eth:${loomEthAddressStr}`);
+    console.log(`userEthAddress->${userEthAddress}  loomEthAddress->${loomEthAddress}`)
     console.log(`Transferring ${amount.div(coinMultiplier).toString()} to Loom Mainnet Gateway...`);
     await gateway.withdrawLoomCoinAsync(amount, loomEthAddress, userEthAddress);
     console.log(`Transfer complete, waiting for signed receipt...`);
@@ -254,12 +268,18 @@ program
     try {
       const ethereumGateway = new ethers.Contract(config.loomGatewayEthAddress, ERC20GatewayABI, user.wallet);
       const loomEthAddress: string = await ethereumGateway.functions.loomAddress();
-      const dappchainGateway = await Contracts.LoomCoinTransferGateway.createAsync(user.client, user.loomAddress);
+      let dappchainGateway = await Contracts.LoomCoinTransferGateway.createAsync(user.client, user.loomAddress);
+
+      if(config.isBsc) {
+         console.log("Setting up a bsc gateway")
+         dappchainGateway = await Contracts.BscTransferGateway.createAsync(user.client, user.loomAddress);
+      }
+
       const amountBN = new BN(amount).mul(coinMultiplier);
       const sig = await depositToLoomGatewayAsync(dappchainGateway, amountBN, loomEthAddress, user);
       console.log('Withdrawing from Ethereum Gateway...');
       const tx = await ethereumGateway.functions.withdrawERC20(amountBN.toString(), sig, loomEthAddress);
-      console.log('Waiting for tx confirmation...');
+      console.log('Waiting for tx confirmation...--- ${tx}');
       await tx.wait();
       console.log(`${amount} tokens withdrawn from Ethereum Gateway.`);
       console.log(`Ethereum tx hash: ${tx.hash}`);
@@ -325,7 +345,9 @@ program
         console.log("Token owner:", receipt.tokenOwner.toString());
         console.log("Token address:", loomEthAddress)
         console.log("Gateway address:", ethereumGateway.address)
-        console.log("Contract:", receipt.tokenContract.toString());
+        if (receipt.tokenContract) {
+          console.log("Contract:", receipt.tokenContract.toString());
+        }
         console.log("Token kind:", receipt.tokenKind);
         console.log("Nonce:", receipt.withdrawalNonce.toString());
         console.log("Contract Nonce:", ethNonce.toString());