json 确定交易确认的区块链API

vohkndzv 于 2023-02-10 发布在其他

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我正在尝试识别比特币区块链中的一笔交易是否已经确认，我使用以下URL从www.example.com访问了该交易的JSON表示blockchain.info：https://blockchain.info/tx/62f9419e56ac1b628840aaf52307867f9856d7a52b3c1d945a9938a3021cbf2c?show_adv=false&format=json
我找不到任何在响应中表明它有多少确认...

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JSON

来源：https://stackoverflow.com/questions/14989481/blockchain-api-to-determine-transaction-confirmations

2条答案

按热度按时间

mlmc2os51#

比特币上的“确认”概念本质上是指自包含交易的区块以来，已经生成了多少个区块。换句话说，你必须发出另一个请求，才能获得当前的网络区块数（http://blockchain.info/q/getblockcount），并且确认计数变为current_block_count - transaction_block_height + 1。注意，block_height仅在至少一个块从（即，新事务甚至可以不包括该元素）。

赞(0）回复(0）举报 2023-02-10

46qrfjad2#

下面是用于确定事务的块计数的示例nodejs代码。

const axios = require('axios');

async function getConfirmations(transactionId) {
  try {
    const response = await 

    axios.get(`https://blockchain.info/rawtx/${transactionId}`);
    const blockHeight = response.data.block_height;
    const currentBlockHeight = await axios.get(`https://blockchain.info/latestblock`)
      .then(res => res.data.height);

    const confirmations = currentBlockHeight - blockHeight + 1;
    return confirmations;
  } catch (error) {
    console.error(error);
  }
}

赞(0）回复(0）举报 2023-02-10

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json 确定交易确认的区块链API

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