node爬取中国行政区域geo数据

依赖

{"dependencies": {"axios": "^1.4.0","colors": "^1.4.0","express": "^4.18.2","fs": "^0.0.1-security"}
}

数据来源

https://datav.aliyun.com/portal/school/atlas/area_selector

代码

const axios = require('axios');
const fs = require("fs");
const colors = require('colors');function getData(code="100000_full"){axios.get("https://geo.datav.aliyun.com/areas_v3/bound/"+code+".json").then(res=>{console.log('=========== 数据读取成功 ==========='.yellow);console.log(res.data);console.log('========== ============= =========='.yellow);/* -------------   生成json文件    --------------*/const writerStream = fs.createWriteStream("data/"+parseInt(code)+'.json');writerStream.write(JSON.stringify(res.data));writerStream.end();// 文件处理流事件：data, end, and errorwriterStream.on('finish', function () {console.log('<<<------------------------------- 写入完成 ------------------------------->>>\n'.green);});writerStream.on('error', function (err) {console.log('<<<------------------------------- 写入错误 ------------------------------->>>\n'.red);});// 下钻子项if(res.data.features.length>1){res.data.features.map(item => {if(item.properties.childrenNum){getData(item.properties.adcode+"_full")}else{getData(item.properties.adcode)}})}}).catch(err=>{console.log('========== 数据读取错误 =========='.red);})
};
getData();// function throttled(fn, delay = 800) {
//   let timer = null;
//   return function (...args) {
//     if (!timer) {
//       timer = setTimeout(() => {
//         fn.apply(this, args)
//         timer = null
//       }, delay);
//     }
//   }
// }