Liquid Fees calculation

calculate-fees.js

import fetch from "node-fetch";

const START_BLOCK = 1247561; // 2021-03-25 21:00
const END_BLOCK = 1761444; // 2022-03-25 21:00

const calculateBlockFees = async (blockHash) => {
  const response = await fetch(
    `https://liquid.network/api/block/${blockHash}/txs`
  );
  const txs = await response.json();
  let total_block_fees = 0;
  for (const tx of txs) {
    total_block_fees += tx.fee;
  }
  return total_block_fees;
};

const getBlockHash = async (blockHeight) => {
  const response = await fetch(
    `https://liquid.network/api/block-height/${blockHeight}`
  );
  return await response.text();
};

const start = async () => {
  let totalFees = 0;
  for (let blockHeight = START_BLOCK; blockHeight <= END_BLOCK; blockHeight++) {
    const blockHash = await getBlockHash(blockHeight);
    const blockFees = await calculateBlockFees(blockHash);
    console.log(`height: ${blockHeight}, fees: ${blockFees}`);
    totalFees += blockFees;
  }
  const bitcoin = totalFees / 100000000;
  console.log(`Total Fees = ${bitcoin} L-BTC`);
};

start();