web3js: First version with TxTypeValueTransfer support

web3js-ext/example/valueTransfer.js

@@ -0,0 +1,54 @@
+const { Web3 } = require("web3");
+const { KlaytnWeb3 } = require( "../dist/src");
+
+const priv = "0xac0974bec39a17e36ba4a6b4d238ff944bacb478cbed5efcae784d7bf4f2ff80";
+const addr = "0xf39Fd6e51aad88F6F4ce6aB8827279cffFb92266";
+const to = "0x70997970c51812dc3a010c7d01b50e0d17dc79c8";
+const url = "http://localhost:8545";
+const contractAddr = "0x5FbDB2315678afecb367f032d93F642f64180aa3";
+const data_increment = "0xd09de08a"; // Counter.sol:increment()
+
+async function main() {
+  let provider = new Web3.providers.HttpProvider(url);
+
+  // let web3 = new Web3(addr);
+  let web3 = new KlaytnWeb3(provider);
+
+  let sender = web3.eth.accounts.privateKeyToAccount(priv);
+  console.log({ sender });
+
+  /*
+  let tx = {
+    from: sender.address,
+    to: to,
+    value: 1e9,
+    // nonce: await web3.eth.getTransactionCount(addr),
+    // gas: 21000,
+    // gasPrice: 25e9,
+    type: 0x08,
+  };
+  /*/
+  let tx = {
+    from: sender.address,
+    to: contractAddr,
+    value: 0,
+    nonce: await web3.eth.getTransactionCount(addr),
+    gas: 100_000,
+    gasPrice: 25e9,
+    data: data_increment,
+    data: "0xdeadbeef", // trigger error
+    type: 0x30,
+  }
+  //*/
+
+  let signResult = await web3.eth.accounts.signTransaction(tx, sender.privateKey);
+  console.log({ signResult });
+
+  let sendResult = await web3.eth.sendSignedTransaction(signResult.rawTransaction);
+  let txhash = sendResult.transactionHash;
+
+  let receipt = await web3.eth.getTransactionReceipt(txhash);
+  console.log({ receipt });
+}
+
+main().catch(console.err);