1
var rpcUrl = "http://127.0.0.1:8545";
2
var rpcId = 0;
3

4
var rpc = async (method, params = []) => {
5
  var response = await fetch(rpcUrl, {
6
    method: "POST",
7
    headers: { "Content-Type": "application/json" },
8
    body: JSON.stringify({
9
      jsonrpc: "2.0",
10
      id: ++rpcId,
11
      method,
12
      params,
13
    }),
14
  });
15

16
  if (!response.ok) throw new Error(`HTTP ${response.status}`);
17

18
  var body = await response.json();
19
  if (body.error) throw new Error(JSON.stringify(body.error));
20
  return body.result;
21
};
22

23
// 数值转成十进制字符串，避免大整数丢失精度
24
var dec = value => value == null ? null : BigInt(value).toString();

1
console.table({
2
  client: await rpc("web3_clientVersion"),
3
  chainId: dec(await rpc("eth_chainId")),
4
  blockNumber: dec(await rpc("eth_blockNumber")),
5
});
6

7
if (BigInt(await rpc("eth_chainId")) !== 31337n) {
8
  throw new Error("RPC 不是预期的 Anvil 31337");
9
}

1
var showMiningMode = async () => {
2
  console.table({
3
    automine: await rpc("anvil_getAutomine"),
4
    interval: await rpc("anvil_getIntervalMining"),
5
  });
6
};
7

8
await showMiningMode();

1
await rpc("evm_setAutomine", [false]);
2
await rpc("evm_setIntervalMining", [0]);
3

4
await showMiningMode();

1
var accountState = async () => ({
2
  latestNonce: dec(await rpc("eth_getTransactionCount", [from, "latest"])),
3
  pendingNonce: dec(await rpc("eth_getTransactionCount", [from, "pending"])),
4
  balanceWei: dec(await rpc("eth_getBalance", [from, "latest"])),
5
  blockNumber: dec(await rpc("eth_blockNumber")),
6
});
7

8
var before = await accountState();
9
console.table(before);

1
var txRequest = {
2
  from,
3
  to: from, // 本实验给自己转账，也可以改为其他测试地址
4
  value: "0x" + (10n ** 15n).toString(16), // 0.001 ETH
5
};
6

7
console.log(txRequest);
8

9
if (BigInt(await wallet.request({ method: "eth_chainId" })) !== 31337n) {
10
  throw new Error("钱包网络已变化，停止发送");
11
}
12

13
var txHash = await wallet.request({
14
  method: "eth_sendTransaction",
15
  params: [txRequest],
16
});
17

18
console.log("交易哈希：", txHash);

1
var E = await import(
2
  "https://cdn.jsdelivr.net/npm/[email protected]/dist/ethers.min.js"
3
);
4

5
var rawTx = await rpc("debug_getRawTransaction", [txHash]);
6
if (!rawTx) throw new Error("节点没有返回原始交易");
7

8
var signedTx = E.Transaction.from(rawTx);
9

10
console.log("原始已签名交易：", rawTx);
11
console.log("解析后的交易：", signedTx.toJSON());
12

13
// 完整已签名交易的哈希
14
var computedTxHash = E.keccak256(rawTx);
15

16
// 待签名数据的摘要：验签用这个，不是 txHash
17
var signingHash = E.keccak256(signedTx.unsignedSerialized);
18

19
// 使用 r/s/v 恢复发送者地址
20
var recoveredFrom = E.recoverAddress(
21
  signingHash,
22
  signedTx.signature,
23
);
24

25
console.table({
26
  signingHash,
27
  computedTxHash,
28
  returnedTxHash: txHash,
29
  hashMatches: computedTxHash.toLowerCase() === txHash.toLowerCase(),
30

31
  r: signedTx.signature.r,
32
  s: signedTx.signature.s,
33
  recoveryV: signedTx.signature.v, // 库归一化后的 27 / 28
34
  yParity: signedTx.signature.yParity,
35

36
  recoveredFrom,
37
  expectedFrom: from,
38
  signerMatches: recoveredFrom.toLowerCase() === from.toLowerCase(),
39
  rpcFromMatches: recoveredFrom.toLowerCase() === minedTx.from.toLowerCase(),
40

41
  chainId: signedTx.chainId.toString(),
42
  nonce: signedTx.nonce,
43
  valueETH: E.formatEther(signedTx.value),
44
  actualFeeETH: E.formatEther(
45
    BigInt(receipt.gasUsed) * BigInt(receipt.effectiveGasPrice)
46
  ),
47
});

1
// 收到交易就自动出块
2
await rpc("evm_setAutomine", [true]);