Delphi DLL

ipinfo.io IPv4 Geolocation Lookup

See more Geolocation Examples

Demonstrates how to lookup Geolocation data for an IPv4 address using the ipinfo.io API. Delphi DLL

uses
    Winapi.Windows, Winapi.Messages, System.SysUtils, System.Variants, System.Classes, Vcl.Graphics,
    Vcl.Controls, Vcl.Forms, Vcl.Dialogs, Vcl.StdCtrls, JsonObject, Http;

...

procedure TForm1.Button1Click(Sender: TObject);
var
success: Boolean;
http: HCkHttp;
jsonStr: PWideChar;
json: HCkJsonObject;
ip: PWideChar;
hostname: PWideChar;
city: PWideChar;
region: PWideChar;
country: PWideChar;
loc: PWideChar;
postal: PWideChar;
asnAsn: PWideChar;
asnName: PWideChar;
asnDomain: PWideChar;
asnRoute: PWideChar;
asnType: PWideChar;
companyName: PWideChar;
companyDomain: PWideChar;
companyType: PWideChar;
carrierName: PWideChar;
carrierMcc: PWideChar;
carrierMnc: PWideChar;

begin
success := False;

// This example requires the Chilkat API to have been previously unlocked.
// See Global Unlock Sample for sample code.

http := CkHttp_Create();

CkHttp_putLogin(http,'ACCESS_TOKEN');
CkHttp_putPassword(http,'');
CkHttp_putAccept(http,'application/json');

// Lookup an IPv4 address: 149.250.207.170  (this was a randomly chosen address)
jsonStr := CkHttp__quickGetStr(http,'https://ipinfo.io/149.250.207.170');
if (CkHttp_getLastMethodSuccess(http) = False) then
  begin
    Memo1.Lines.Add(CkHttp__lastErrorText(http));
    Exit;
  end;

json := CkJsonObject_Create();
CkJsonObject_putEmitCompact(json,False);
success := CkJsonObject_Load(json,jsonStr);

Memo1.Lines.Add(CkJsonObject__emit(json));

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

// Note: This is the output for the free trial account.
// 
// {
//   "ip": "149.250.207.170",
//   "city": "",
//   "region": "",
//   "country": "DE",
//   "loc": "51.2993,9.4910",
//   "org": "AS15854 EntServ Deutschland GmbH"
// }

// A full response would look like this:

// {
//   "ip": "66.87.125.72",
//   "hostname": "66-87-125-72.pools.spcsdns.net",
//   "city": "Southbridge",
//   "region": "Massachusetts",
//   "country": "US",
//   "loc": "42.0707,-72.0440",
//   "postal": "01550",
//   "asn": {
//     "asn": "AS10507",
//     "name": "Sprint Personal Communications Systems",
//     "domain": "spcsdns.net",
//     "route": "66.87.125.0/24",
//     "type": "isp"
//   },
//   "company": {
//     "name": "Sprint Springfield POP",
//     "domain": "sprint.com",
//     "type": "isp"
//   },  
//   "carrier": {
//     "name": "Sprint",
//     "mcc": "310",
//     "mnc": "120"
//   }
// }
// 

ip := CkJsonObject__stringOf(json,'ip');
hostname := CkJsonObject__stringOf(json,'hostname');
city := CkJsonObject__stringOf(json,'city');
region := CkJsonObject__stringOf(json,'region');
country := CkJsonObject__stringOf(json,'country');
loc := CkJsonObject__stringOf(json,'loc');
postal := CkJsonObject__stringOf(json,'postal');
asnAsn := CkJsonObject__stringOf(json,'asn.asn');
asnName := CkJsonObject__stringOf(json,'asn.name');
asnDomain := CkJsonObject__stringOf(json,'asn.domain');
asnRoute := CkJsonObject__stringOf(json,'asn.route');
asnType := CkJsonObject__stringOf(json,'asn.type');
companyName := CkJsonObject__stringOf(json,'company.name');
companyDomain := CkJsonObject__stringOf(json,'company.domain');
companyType := CkJsonObject__stringOf(json,'company.type');
carrierName := CkJsonObject__stringOf(json,'carrier.name');
carrierMcc := CkJsonObject__stringOf(json,'carrier.mcc');
carrierMnc := CkJsonObject__stringOf(json,'carrier.mnc');

CkHttp_Dispose(http);
CkJsonObject_Dispose(json);

end;