Exemples de requêtes Tron

Cette page fournit des exemples de requêtes Blockchain Analytics pour Tron.

Pour savoir comment utiliser BigQuery, consultez la documentation BigQuery.

Transferts Tether avec les montants les plus élevés au cours d'un mois

Cette requête renvoie les trois plus grands transferts USDT en mars 2023.

Dans la Google Cloud console, accédez à la page BigQuery.

Accéder à BigQuery

La requête suivante est chargée dans le champ Editor (Éditeur) :

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;

Voici un exemple de résultat :

Exemple de résultat
block_number from_address to_address amount
49606052 TV6MuMXfmLbBqPZvBHdwFsDnQeVfnmiuSi TWd4WrZ9wn84f5x1hZhL4DHvk738ns5jwb 2173544428.073
49076870 TWd4WrZ9wn84f5x1hZhL4DHvk738ns5jwb TV6MuMXfmLbBqPZvBHdwFsDnQeVfnmiuSi 2005126503.6518
49665517 T9yD14Nj9j7xAB4dbGeiX9h8unkKHxuWwb TBPxhVAsuzoFnKyXtc1o2UySEydPHgATto 1000000000.0