创建交易

你应该通过 near-api-js 创建交易对象，我们提供了一些便捷方法来获取交易构造函数所需的 nonce 和最新区块哈希。


import * as nearAPI from "near-api-js";
 
// 必须等于 provider 连接的账户
const sender = 'c3be856133196da252d0f1083614cdc87a85c8aa8abeaf87daff1520355eec53';
// 必须等于 provider 连接的账户
const publicKey = 'ed25519:EB6zw1gAr4hV6NHuk9rhFPR8m8MwJbyqvZaweXiTNZ2J';
const receiver = 'c3be856133196da252d0f1083614cdc87a85c8aa8abeaf87daff1520355eec53';
 
const amount = nearAPI.utils.format.parseNearAmount('0.0001');
const actions = [nearAPI.transactions.transfer(amount)];
 
const accessKey = await provider.request({
  method: 'query',
  params: [`access_key/${sender}/${publicKey}`, '']
});
// nonce 加 1
const nonce = accessKey.nonce + 1;
const recentBlockHash = nearAPI.utils.serialize.base_decode(
  accessKey.block_hash
);
 
const publicKeyBytes = nearAPI.utils.PublicKey.fromString(publicKey);
 
const transaction = nearAPI.transactions.createTransaction(
  sender,
  publicKeyBytes,
  receiver,
  nonce,
  actions,
  recentBlockHash,
);

或者直接调用 provider.createTransaction 方法更简单。


const receiver = 'c3be856133196da252d0f1083614cdc87a85c8aa8abeaf87daff1520355eec53';
const amount = nearAPI.utils.format.parseNearAmount('0.0001');
const actions = [nearAPI.transactions.transfer(amount)];
 
const transaction = await provider.createTransaction({
  receiverId: receiver,
  actions,
  // nonce 加 1
  nonceOffset: 1,
});