Initial commit: add .gitignore and README

smart_contracts/scripts/public/web3_eth_tx.js

@@ -0,0 +1,52 @@
+const path = require('path');
+const fs = require('fs-extra');
+const Web3 = require('web3');
+
+// member1 details
+const { tessera, besu, accounts } = require("../keys.js");
+const host = besu.rpcnode.url;
+
+async function main(){
+  const web3 = new Web3(host);
+  //pre seeded account - test account only
+  
+  const privateKeyA = accounts.a.privateKey; 
+  const accountA = web3.eth.accounts.privateKeyToAccount(privateKeyA);
+  var accountABalance = web3.utils.fromWei(await web3.eth.getBalance(accountA.address));
+  console.log("Account A has balance of: " + accountABalance);
+
+  // create a new account to use to transfer eth to
+  var accountB = web3.eth.accounts.create();
+  var accountBBalance = web3.utils.fromWei(await web3.eth.getBalance(accountB.address));
+  console.log("Account B has balance of: " + accountBBalance);
+
+  // send some eth from A to B
+  const txn = {
+    nonce: web3.utils.numberToHex(await web3.eth.getTransactionCount(accountA.address)),
+    from: accountA.address,
+    to: accountB.address, 
+    value: "0x100",  //amount of eth to transfer
+    gasPrice: "0x0", //ETH per unit of gas
+    gasLimit: "0x24A22" //max number of gas units the tx is allowed to use
+  };
+
+  console.log("create and sign the txn")
+  const signedTx = await web3.eth.accounts.signTransaction(txn, accountA.privateKey);
+  console.log("sending the txn")
+  const txReceipt = await web3.eth.sendSignedTransaction(signedTx.rawTransaction);
+  console.log("tx transactionHash: " + txReceipt.transactionHash);
+
+  //After the transaction there should be some ETH transferred
+  accountABalance = web3.utils.fromWei(await web3.eth.getBalance(accountA.address));
+  console.log("Account A has an updated balance of: " + accountABalance);
+  accountBBalance = web3.utils.fromWei(await web3.eth.getBalance(accountB.address));
+  console.log("Account B has an updated balance of: " + accountBBalance);
+
+}
+
+if (require.main === module) {
+  main();
+}
+
+module.exports = exports = main
+