如何正確創建原始交易並在瀏覽器中使用 web3 對其進行簽名

我想使用 web3 在瀏覽器中創建和簽署交易。為了創建原始交易，我想我必須做這樣的事情（希望你能填補我的知識空白）

var pk = '0x6ba33b3f7997c2bf63d82f3baa1a8069014a59fa1f554af3266aa85afee9d0a9';

pk = new Buffer(pk,'hex');

var address = '0xFb4d271F3056aAF8Bcf8aeB00b5cb4B6C02c7368';

var myContractsAddress = '0x0cb4edc28d17c43a75797bf5effc141fd5da8715';

var rawTx = {

nonce: web3.toHex(web3.eth.getTransactionCount(acct1)),

to: myContractsAddress,

gasPrice: web3.toHex(20000000000),

gasLimit: web3.toHex(200000),

value: ***Here I am not sure, am I supposed to encode my list of variables? and do I encode everything to hex, or just integers? And how would that list look like?***

data: *This field is irrelevant for now, and just for documentationpurpose, right?*
}

這應該給我我的原始交易（關於數據欄位的部分我很遺憾不知道並且很想獲得幫助！

假設我的原始交易此時是有效且正確的，我現在必須使用私鑰對其進行簽名。我見過的解決方案使用了一個名為ethereumjs-tx的 node.js 庫。是否有僅使用 web3 的解決方案，或者我是否必須以某種方式將此庫移植到我的瀏覽器中？

下面是在https://programtheblockchain.com/dapps/counter上呼叫“增量”的工作程式碼。（有關該範例的更多資訊：https ://programtheblockchain.com/posts/2017/12/13/building-decentralized-apps-with-ethereum-and-javascript/ 。）

它使用web3.js和ethereumjs-tx：

<!-- from https://github.com/ethereumjs/browser-builds/raw/master/dist/ethereumjs-tx/ethereumjs-tx-1.3.3.min.js -->
<script src="ethereumjs-tx-1.3.3.min.js"></script>
<script>
 var address = "0xf15090c01bec877a122b567e5552504e5fd22b79";
 var abi = [{"constant":true,"inputs":[],"name":"getCount","outputs":[{"name":"","type":"uint256"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":false,"inputs":[],"name":"increment","outputs":[],"payable":false,"stateMutability":"nonpayable","type":"function"},{"inputs":[{"name":"_count","type":"uint256"}],"payable":false,"stateMutability":"nonpayable","type":"constructor"}];

 var account = "<REDACTED ACCOUNT ADDRESS>";
 var privateKey = "<REDACTED PRIVATE KEY WITHOUT 0x PREFIX>";

 var web3 = new Web3(new Web3.providers.HttpProvider(
   "https://ropsten.infura.io/<REDACTED API KEY"));

 web3.eth.getTransactionCount(account, function (err, nonce) {
   var data = web3.eth.contract(abi).at(address).increment.getData();

   var tx = new ethereumjs.Tx({
     nonce: nonce,
     gasPrice: web3.toHex(web3.toWei('20', 'gwei')),
     gasLimit: 100000,
     to: address,
     value: 0,
     data: data,
   });
   tx.sign(ethereumjs.Buffer.Buffer.from(privateKey, 'hex'));

   var raw = '0x' + tx.serialize().toString('hex');
   web3.eth.sendRawTransaction(raw, function (err, transactionHash) {
     console.log(transactionHash);
   });
 });
</script>

引用自：https://ethereum.stackexchange.com/questions/36358