Tron 範例查詢

本頁面提供 Tron 的區塊鏈分析查詢範例。

如需使用 BigQuery 的操作說明，請參閱 BigQuery 說明文件。

單月金額最高的 Tether 轉移

這項查詢會傳回 2023 年 3 月前三筆最大的 USDT 轉移交易。

前往 Google Cloud 控制台的「BigQuery」頁面。

前往 BigQuery

下列查詢會載入「編輯器」欄位：

CREATE TEMP FUNCTION hexToTron(address STRING)
RETURNS STRING
LANGUAGE js
OPTIONS (library=["gs://blockchain-etl-bigquery/ethers.js"])
AS r"""
  function encode58(buffer) {
    const ALPHABET = '123456789ABCDEFGHJKLMNPQRSTUVWXYZabcdefghijkmnopqrstuvwxyz';
    const digits = [0];
    for (let i = 0; i < buffer.length; i++) {
      for (let j = 0; j < digits.length; j++) digits[j] <<= 8;
      digits[0] += buffer[i];
      let carry = 0;
      for (let j = 0; j < digits.length; ++j) {
        digits[j] += carry;
        carry = (digits[j] / 58) | 0;
        digits[j] %= 58;
      }
      while (carry) {
        digits.push(carry % 58);
        carry = (carry / 58) | 0;
      }
    }
    for (let i = 0; buffer[i] === 0 && i < buffer.length - 1; i++) digits.push(0);
    return digits.reverse().map((digit) => ALPHABET[digit]).join("");
  }

  function sha256(msgBytes) {
    const msgHex = ethers.utils.hexlify(msgBytes);
    const hashHex = ethers.utils.sha256(msgHex);
    return ethers.utils.arrayify(hashHex);
  }

  addressBytes = ethers.utils.arrayify('0x' + address.replace(/^0x/, '41'))
  checkSum = sha256(sha256(addressBytes)).slice(0, 4);
  return encode58(new Uint8Array([...addressBytes, ...checkSum]));
""";

WITH transfers AS (
  SELECT
    block_number,
    hexToTron(CONCAT('0x', SUBSTR(topics[1], 27))) AS from_address,
    hexToTron(CONCAT('0x', SUBSTR(topics[2], 27))) AS to_address,
    CAST(data AS INT64) / 1000000 AS amount
  FROM
    `bigquery-public-data.goog_blockchain_tron_mainnet_us.logs` l
  WHERE
    address = '0xa614f803b6fd780986a42c78ec9c7f77e6ded13c' -- USDT contract
    AND ARRAY_LENGTH(topics) = 3
    AND topics[0] = '0xddf252ad1be2c89b69c2b068fc378daa952ba7f163c4a11628f55a4df523b3ef' -- Transfer events
    AND DATE(block_timestamp) BETWEEN "2023-03-01" AND "2023-03-31"
)
SELECT * FROM transfers ORDER BY amount DESC LIMIT 3;

以下是結果範例：

範例結果
block_number from_address to_address amount
49606052 TV6MuMXfmLbBqPZvBHdwFsDnQeVfnmiuSi TWd4WrZ9wn84f5x1hZhL4DHvk738ns5jwb 2173544428.073
49076870 TWd4WrZ9wn84f5x1hZhL4DHvk738ns5jwb TV6MuMXfmLbBqPZvBHdwFsDnQeVfnmiuSi 2005126503.6518
49665517 T9yD14Nj9j7xAB4dbGeiX9h8unkKHxuWwb TBPxhVAsuzoFnKyXtc1o2UySEydPHgATto 1000000000.0