(Java) ipstack.com IPv4 Geolocation Lookup

Demonstrates how to lookup Geolocation data for an IPv4 address using the ipstack.com REST API.

Chilkat Java Downloads Java Libs for Windows, MacOS, Linux, Alpine Linux, Solaris Java Libs for Android

import com.chilkatsoft.*;

public class ChilkatExample {

  static {
    try {
        System.loadLibrary("chilkat");
    } catch (UnsatisfiedLinkError e) {
      System.err.println("Native code library failed to load.\n" + e);
      System.exit(1);
    }
  }

  public static void main(String argv[])
  {
    // This example requires the Chilkat API to have been previously unlocked.
    // See Global Unlock Sample for sample code.

    CkHttp http = new CkHttp();

    // Lookup an IPv4 address: 149.250.207.170  (this was a randomly chosen address)
    String jsonStr = http.quickGetStr("http://api.ipstack.com/149.250.207.170?access_key=YOUR_ACCESS_KEY");
    if (http.get_LastMethodSuccess() == false) {
        System.out.println(http.lastErrorText());
        return;
        }

    CkJsonObject json = new CkJsonObject();
    json.put_EmitCompact(false);
    boolean success = json.Load(jsonStr);

    System.out.println(json.emit());

    // Sample output:
    // Use this online tool to generate parsing code from sample JSON: 
    // Generate Parsing Code from JSON

    // {
    //   "ip": "149.250.207.170",
    //   "type": "ipv4",
    //   "continent_code": "EU",
    //   "continent_name": "Europe",
    //   "country_code": "DE",
    //   "country_name": "Germany",
    //   "region_code": null,
    //   "region_name": null,
    //   "city": null,
    //   "zip": null,
    //   "latitude": 51.2993,
    //   "longitude": 9.491,
    //   "location": {
    //     "geoname_id": null,
    //     "capital": "Berlin",
    //     "languages": [
    //       {
    //         "code": "de",
    //         "name": "German",
    //         "native": "Deutsch"
    //       }
    //     ],
    //     "country_flag": "http:\/\/assets.ipstack.com\/flags\/de.svg",
    //     "country_flag_emoji": "\ud83c\udde9\ud83c\uddea",
    //     "country_flag_emoji_unicode": "U+1F1E9 U+1F1EA",
    //     "calling_code": "49",
    //     "is_eu": true
    //   }
    // }

    String ip;
    String v_type;
    String continent_code;
    String continent_name;
    String country_code;
    String country_name;
    String region_code;
    String region_name;
    String city;
    String zip;
    String latitude;
    String longitude;
    String locationGeoname_id;
    String locationCapital;
    String locationCountry_flag;
    String locationCountry_flag_emoji;
    String locationCountry_flag_emoji_unicode;
    String locationCalling_code;
    boolean locationIs_eu;
    int i;
    int count_i;
    String code;
    String name;
    String native;

    ip = json.stringOf("ip");
    v_type = json.stringOf("type");
    continent_code = json.stringOf("continent_code");
    continent_name = json.stringOf("continent_name");
    country_code = json.stringOf("country_code");
    country_name = json.stringOf("country_name");
    region_code = json.stringOf("region_code");
    region_name = json.stringOf("region_name");
    city = json.stringOf("city");
    zip = json.stringOf("zip");
    latitude = json.stringOf("latitude");
    longitude = json.stringOf("longitude");
    locationGeoname_id = json.stringOf("location.geoname_id");
    locationCapital = json.stringOf("location.capital");
    locationCountry_flag = json.stringOf("location.country_flag");
    locationCountry_flag_emoji = json.stringOf("location.country_flag_emoji");
    locationCountry_flag_emoji_unicode = json.stringOf("location.country_flag_emoji_unicode");
    locationCalling_code = json.stringOf("location.calling_code");
    locationIs_eu = json.BoolOf("location.is_eu");
    i = 0;
    count_i = json.SizeOfArray("location.languages");
    while (i < count_i) {
        json.put_I(i);
        code = json.stringOf("location.languages[i].code");
        name = json.stringOf("location.languages[i].name");
        native = json.stringOf("location.languages[i].native");
        i = i+1;
        }
  }
}