Etherscan API 按地址查询内部交易 - 区块链数据开

简介：Etherscan 大多数朋友都比较熟悉了，它是主流以太坊区块浏览器。Etherscan 有面向开发者提供 API 服务以方便其检索以太坊区块链信息。本文示例如何使用 Etherscan API 按地址查询以太坊内部交易（Internal Transactions）。

Etherscan 大多数朋友都比较熟悉了，它是主流以太坊区块浏览器。Etherscan 有面向开发者提供 API 服务以方便其检索以太坊区块链信息。

Etherscan API 在没有密钥的情况下，支持每秒最多五次请求。有更多请求需求可以在这里申请密钥：https://etherscancom.freshdesk.com/support/solutions/articles/35000022163-i-need-an-api-key

使用 Etherscan API 按地址查询以太坊内部交易（Internal Transactions）：

语句：

http://api.etherscan.io/api?module=account&action=txlistinternal&address={填入查询地址}&startblock=0&endblock=2702578&sort=asc&apikey={填入你的ApiKey}

当然，不使用 apikey 也是可以查询的：

http://api.etherscan.io/api?module=account&action=txlistinternal&address={填入查询地址}&startblock=0&endblock=2702578&sort=asc

如果需要获取分页结果，设置一下page和offset即可：

https://api.etherscan.io/api?module=account&action=txlistinternal&address={填入查询地址}&startblock=0&endblock=2702578&page={页码}&offset={每页结果数}&sort=asc&apikey={填入你的ApiKey}

Node.js 代码示例：

const fetch = require('node-fetch');

fetch('http://api.etherscan.io/api?module=account&action=txlistinternal&address={填入查询地址}&startblock=0&endblock=2702578&sort=asc&apikey={填入你的ApiKey}', {
    method: 'get',
}).then(response => response.json()
    .then(data => console.log(data)));

返回的 JSON 示例：

{
  "status": "1",
  "message": "OK",
  "result": [
    {
      "blockNumber": "2535368",
      "timeStamp": "1477837690",
      "hash": "0x8a1a9989bda84f80143181a68bc137ecefa64d0d4ebde45dd94fc0cf49e70cb6",
      "from": "0x20d42f2e99a421147acf198d775395cac2e8b03d",
      "to": "",
      "value": "0",
      "contractAddress": "0x2c1ba59d6f58433fb1eaee7d20b26ed83bda51a3",
      "input": "",
      "type": "create",
      "gas": "254791",
      "gasUsed": "46750",
      "traceId": "0",
      "isError": "0",
      "errCode": ""
    },
    {
      "blockNumber": "2535479",
      "timeStamp": "1477839134",
      "hash": "0x1a50f1dc0bc912745f7d09b988669f71d199719e2fb7592c2074ede9578032d0",
      "from": "0x2c1ba59d6f58433fb1eaee7d20b26ed83bda51a3",
      "to": "0x20d42f2e99a421147acf198d775395cac2e8b03d",
      "value": "100000000000000000",
      "contractAddress": "",
      "input": "",
      "type": "call",
      "gas": "235231",
      "gasUsed": "0",
      "traceId": "0",
      "isError": "0",
      "errCode": ""
    },
    {
      "blockNumber": "2547590",
      "timeStamp": "1478012596",
      "hash": "0xee535e4016e766d9210d0bc47afeff48f12cd05f0b0b00aa0ed7019b4417f505",
      "from": "0x2c1ba59d6f58433fb1eaee7d20b26ed83bda51a3",
      "to": "0x20d42f2e99a421147acf198d775395cac2e8b03d",
      "value": "1000000000000000000",
      "contractAddress": "",
      "input": "",
      "type": "call",
      "gas": "174995",
      "gasUsed": "0",
      "traceId": "0",
      "isError": "0",
      "errCode": ""
    }
  ]
}

Etherscan API 官方文档：https://etherscan.io/apis

Etherscan API 思维导图：

Etherscan API.png

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