トランザクションを送る

import { createWalletClient, custom } from "viem";
import { pickleChain } from "./pickle";

const wallet = createWalletClient({ chain: pickleChain, transport: custom(window.ethereum) });

const hash = await wallet.sendTransaction({
  to: recipient,
  value: 10n ** 16n,
  // Explicit, because there is no fee market to estimate from: the base fee is
  // zero and the minimum accepted price is one wei.
  gasPrice: 1n,
});

const [account] = await window.ethereum.request({ method: "eth_requestAccounts" });

const hash = await window.ethereum.request({
  method: "eth_sendTransaction",
  params: [{ from: account, to: recipient, value: "0x2386f26fc10000", gasPrice: "0x1" }],
});

// Poll early and tightly: the receipt exists almost immediately, and a long
// backoff risks the window evicting it between two attempts.
async function receiptFor(hash, tries = 40) {
  for (let i = 0; i < tries; i += 1) {
    const receipt = await call("eth_getTransactionReceipt", [hash]);
    if (receipt) return receipt;
    await new Promise((r) => setTimeout(r, 100));
  }
  throw new Error("no receipt after 4s - check the node, not the transaction");
}

const receipt = await receiptFor(hash);

// "0x1" succeeded, "0x0" reverted. Both are known before the block seals.
if (receipt.status !== "0x1") throw new Error("transaction reverted");

// Only if you actually need the block: blockNumber is null until the EVM seal.

import { decodeErrorResult } from "viem";

try {
  await client.simulateContract({ /* … */ });
} catch (err) {
  const hex = String(err.message).match(/0x[0-9a-fA-F]+/)?.[0];
  if (hex && hex.length > 2) {
    // Decode against your own ABI's error definitions.
    const decoded = decodeErrorResult({ abi: myAbi, data: hex as `0x${string}` });
    console.error(decoded.errorName, decoded.args);
  }
}