@ipdb/cac/index.js

IPIP.net database patches (China Administrative divisions Code)

const list = require('./data')

const query = (country, region, city) => {
  if (country === '中国') {
    if (list[region]) {
      const result = list[region][city] || list[region][region]
      return result.toString()
    }
    // 尝试前缀匹配
    for (const key in list) {
      if (region.indexOf(key) === 0) {
        const cityList = list[key]
        for (const cityKey in cityList) {
          if (city.indexOf(cityKey) === 0) {
            return cityList[cityKey].toString()
          }
        }
      }
    }
    return '100000'
  }
  return ''
}

const patch = data => {
  if (!data.china_admin_code) {
    data.china_admin_code = query(data.country_name, data.region_name, data.city_name)
  }
  return data
}

module.exports = patch