Etherscan API 按地址查询普通交易 - 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 按地址查询以太坊普通（Normal）交易。

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 按地址查询以太坊普通（Normal）交易：

语句：

http://api.etherscan.io/api?module=account&action=txlist&address={填入查询地址}&startblock=0&endblock=99999999&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=txlist&address={填入查询地址}&startblock=0&endblock=99999999&sort=asc

如果需要获取分页结果：

https://api.etherscan.io/api?module=account&action=txlist&address={填入查询地址}&startblock=0&endblock=99999999&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=txlist&address={填入查询地址}&startblock=0&endblock=99999999&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": "0",
      "blockHash": "",
      "timeStamp": "1438269973",
      "hash": "GENESIS_ddbd2b932c763ba5b1b7ae3b362eac3e8d40121a",
      "nonce": "",
      "transactionIndex": "0",
      "from": "GENESIS",
      "to": "0xddbd2b932c763ba5b1b7ae3b362eac3e8d40121a",
      "value": "10000000000000000000000",
      "gas": "0",
      "gasPrice": "0",
      "input": "",
      "contractAddress": "",
      "cumulativeGasUsed": "0",
      "txreceipt_status": "",
      "gasUsed": "0",
      "confirmations": "7443069",
      "isError": "0"
    },
    {
      "blockNumber": "47884",
      "blockHash": "0xf2988b9870e092f2898662ccdbc06e0e320a08139e9c6be98d0ce372f8611f22",
      "timeStamp": "1438947953",
      "hash": "0xad1c27dd8d0329dbc400021d7477b34ac41e84365bd54b45a4019a15deb10c0d",
      "nonce": "0",
      "transactionIndex": "0",
      "from": "0xddbd2b932c763ba5b1b7ae3b362eac3e8d40121a",
      "to": "0x2910543af39aba0cd09dbb2d50200b3e800a63d2",
      "value": "5000000000000000000",
      "gas": "23000",
      "gasPrice": "400000000000",
      "input": "0x454e34354139455138",
      "contractAddress": "",
      "cumulativeGasUsed": "21612",
      "txreceipt_status": "",
      "gasUsed": "21612",
      "confirmations": "7395185",
      "isError": "0"
    },
    {
      "blockNumber": "47894",
      "blockHash": "0x2d0a9228f22fe85596d246040d4fd7dc6b1a55920bae02b68e731d55a890b315",
      "timeStamp": "1438948043",
      "hash": "0x7e1503d2001cab2f432b56a62a3ee874782c8e33cbd79a664d155a758c1784a2",
      "nonce": "1",
      "transactionIndex": "0",
      "from": "0xddbd2b932c763ba5b1b7ae3b362eac3e8d40121a",
      "to": "0x2910543af39aba0cd09dbb2d50200b3e800a63d2",
      "value": "9001000000000000000000",
      "gas": "23000",
      "gasPrice": "400000000000",
      "input": "0x454e34354139455138",
      "contractAddress": "",
      "cumulativeGasUsed": "21612",
      "txreceipt_status": "",
      "gasUsed": "21612",
      "confirmations": "7395175",
      "isError": "0"
    }
  ]
}

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

Etherscan API 思维导图：

Etherscan API.png

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