填充订单

function fillOrderOutputs(
    uint32 fillDeadline,
    bytes32 orderId,
    MandateOutput[] calldata outputs,
    bytes32 proposedSolver
) external;

import bs58check from 'bs58check';
import { bech32, bech32m } from 'bech32';

const hexStringToUint8Array = (hexString: string) =>
  Uint8Array.from(
    hexString.match(/.{1,2}/g)!.map((byte) => parseInt(byte, 16))
  );

function decodeBitcoinAddress(
  version: number,
  recipientHash: string,
  testnet = false,
): string {
  if (version === 1) {
    const prefix = !testnet ? '00' : '6F';
    const bytes = hexStringToUint8Array(
      prefix + recipientHash.replace('0x', '').slice(0, 40)
    );
    return bs58check.encode(bytes);
  }
  if (version === 2) {
    const prefix = !testnet ? '05' : 'C4';
    const bytes = hexStringToUint8Array(
      prefix + recipientHash.replace('0x', '').slice(0, 40)
    );
    return bs58check.encode(bytes);
  }
  const prefix = !testnet ? 'bc' : 'tb';
  if (version === 3) {
    const bytes = hexStringToUint8Array(
      recipientHash.replace('0x', '').slice(0, 40)
    );
    const words = bech32.toWords(bytes);
    words.unshift(0x00);
    return bech32.encode(prefix, words);
  }
  const bytes = hexStringToUint8Array(
    recipientHash.replace('0x', '').slice(0, 64)
  );
  if (version === 4) {
    const words = bech32.toWords(bytes);
    words.unshift(0x00);
    return bech32.encode(prefix, words);
  }
  if (version === 5) {
    const words = bech32m.toWords(bytes);
    words.unshift(0x01);
    return bech32m.encode(prefix, words);
  }

  throw Error(`Unsupported Address Type ${version}`);
}

import * as bitcoin from 'bitcoinjs-lib';

bitcoin.initEccLib(ecc);

const psbt = new bitcoin.Psbt({
  network: mainnet ? bitcoin.networks.bitcoin : bitcoin.networks.testnet,
});

// ... add inputs

psbt.addOutput({ address: to, value: outputValue });

const opReturnData = returnData.replace("0x", "");
if (opReturnData.length > 0) {
  const data_embed = bitcoin.payments.embed({
    data: [hexStringToUint8Array(opReturnData)],
  });
  psbt.addOutput({
    script: data_embed.output!,
    value: 0n,
  });
}

// ... complete transaction