@avalabs/avalanchejs/src/vms/pvm/txs/fee/calculator.ts

Avalanche Platform JS Library

import type { Transaction } from '../../../common';
import type { Dimensions } from '../../../common/fees/dimensions';
import { dimensionsToGas } from '../../../common/fees/dimensions';
import { getTxComplexity } from './complexity';

/**
 * Calculates the minimum required fee, in nAVAX, that an unsigned
 * transaction must pay for valid inclusion into a block.
 */
export const calculateFee = (
  tx: Transaction,
  weights: Dimensions,
  price: bigint,
): bigint => {
  const complexity = getTxComplexity(tx);
  const gas = dimensionsToGas(complexity, weights);

  return gas * price;
};