geoip lookup

geoip-lookup

Mengekspos 2 API sederhana, .lookup dan .match . Keduanya asinkron, tetapi .match akan "memblokir" panggilan balik hingga informasinya diambil.

.lookup akan mengembalikan hasil yang tidak ditentukan jika data tidak disimpan dalam cache di database lokal LevelUp yang diperbarui setelah data diambil.

Penggunaan:

 var geoip = require('geoip-lookup');

// This will attempt to check the local database. if not found, it will return an empty result (non-blocking), but will cache the data later
// when the lookup is complete. Useful when e.g. part of an express middleware which you don't want to block rendering the page when your
// next() call is in the callback.
geoip.lookup('10.10.1.1', function(err, result) {
	if (err) {
		console.error(err.stack);
	} else if (result) {
		console.log(result);
	} else {
		console.log('result not found in local database');
	}
	next();
});

// This will get the information from MaxMind and only invoke the callback when it is retrieved.
// it will effectively "block" via the callback, and probably not suitable if continuous execution depends on callbacks
geoip.check('10.10.1.1', function(err, result) {
	if (err) {
		console.error(err.stack);
	} else {
		console.log(result);
	}
}

Bagaimana cara kerjanya

Intinya hits

 freegeoip.net/json/<ip address>

Silakan kunjungi https://freegeoip.net/ untuk informasi lebih lanjut.

mengembalikan JSON dalam format

 {
	city: "Willemstad"
	country_code: "CW"
	country_name: "Curaçao"
	ip: "190.88.211.185"
	latitude: 12.1
	longitude: -68.917
	metro_code: 0
	region_code: ""
	region_name: ""
	time_zone: "America/Curacao"
	zip_code: ""
}

Warisan (tidak berlaku lagi)

Mencoba melakukan cache alamat IP / pencarian lokasi melalui LevelDB, dan sebaliknya menarik data melalui "demo" RESTful API yang disediakan oleh MaxMind.

Tidak terlalu jelas apakah ini "legal" karena Anda mungkin harus mendapatkan lisensi yang sesuai untuk melakukan ini jika Anda melakukannya dalam skala besar.

Intinya hits

 https://www.maxmind.com/geoip/v2.1/city/<ip address>?demo=1

yang mengembalikan JSON dalam format berikut

 {
   "country":{
      "iso_code":"US",
      "names":{
         "pt-BR":"Estados Unidos",
         "es":"Estados Unidos",
         "ru":"Сша",
         "en":"United States",
         "zh-CN":"美国",
         "fr":"États-Unis",
         "de":"USA",
         "ja":"アメリカ合衆国"
      },
      "geoname_id":6252001
   },
   "location":{
      "longitude":-121.895,
      "latitude":37.3394,
      "time_zone":"America/Los_Angeles",
      "metro_code":807
   },
   "subdivisions":[
      {
         "iso_code":"CA",
         "names":{
            "pt-BR":"Califórnia",
            "es":"California",
            "ru":"Калифорния",
            "en":"California",
            "zh-CN":"加利福尼亚州",
            "fr":"Californie",
            "de":"Kalifornien",
            "ja":"カリフォルニア州"
         },
         "geoname_id":5332921
      }
   ],
   "city":{
      "names":{
         "en":"San Jose",
         "fr":"San José",
         "pt-BR":"San José",
         "de":"San José",
         "ja":"サンノゼ",
         "es":"San José",
         "ru":"Сан-Хосе"
      },
      "geoname_id":5392171
   },
   "continent":{
      "names":{
         "pt-BR":"América do Norte",
         "es":"Norteamérica",
         "ru":"Северная Америка",
         "en":"North America",
         "zh-CN":"北美洲",
         "fr":"Amérique du Nord",
         "de":"Nordamerika",
         "ja":"北アメリカ"
      },
      "geoname_id":6255149,
      "code":"NA"
   },
   "maxmind":{
      "queries_remaining":24
   },
   "registered_country":{
      "iso_code":"US",
      "names":{
         "pt-BR":"Estados Unidos",
         "es":"Estados Unidos",
         "ru":"Сша",
         "en":"United States",
         "zh-CN":"美国",
         "fr":"États-Unis",
         "de":"USA",
         "ja":"アメリカ合衆国"
      },
      "geoname_id":6252001
   },
   "traits":{
      "autonomous_system_number":<some integer>,
      "ip_address":"<ip address>",
      "organization":"<some organization>",
      "isp":"<some ISP>",
      "autonomous_system_organization":"<some system organization>"
   }
}