(MFC) ip-api.com IPv4 Geolocation Lookup

Demonstrates how to lookup Geolocation data for an IPv4 address using the ip-api.com API.

Chilkat C/C++ Library Downloads MS Visual C/C++ Libs

See Also: Using MFC CString in Chilkat

#include <CkHttp.h>
#include <CkJsonObject.h>

void ChilkatSample(void)
    {
    CkString strOut;

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

    CkHttp http;

    // Lookup an IPv4 address: 149.250.207.170  (this was a randomly chosen address)
    const char *jsonStr = http.quickGetStr("http://ip-api.com/json/149.250.207.170");
    if (http.get_LastMethodSuccess() == false) {
        strOut.append(http.lastErrorText());
        strOut.append("\r\n");
        SetDlgItemText(IDC_EDIT1,strOut.getUnicode());
        return;
    }

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

    strOut.append(json.emit());
    strOut.append("\r\n");

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

    // {
    //   "as": "AS15854 Hewlett Packard GmbH",
    //   "city": "Bblingen",
    //   "country": "Germany",
    //   "countryCode": "DE",
    //   "isp": "Triaton Frankfurt",
    //   "lat": 48.6779,
    //   "lon": 8.97297,
    //   "org": "EntServ Deutschland GmbH",
    //   "query": "149.250.207.170",
    //   "region": "BW",
    //   "regionName": "Baden-Wrttemberg",
    //   "status": "success",
    //   "timezone": "Europe/Berlin",
    //   "zip": "71034"
    // }

    const char *as = 0;
    const char *city = 0;
    const char *country = 0;
    const char *countryCode = 0;
    const char *isp = 0;
    const char *lat = 0;
    const char *lon = 0;
    const char *org = 0;
    const char *query = 0;
    const char *region = 0;
    const char *regionName = 0;
    const char *status = 0;
    const char *timezone = 0;
    const char *zip = 0;

    as = json.stringOf("as");
    city = json.stringOf("city");
    country = json.stringOf("country");
    countryCode = json.stringOf("countryCode");
    isp = json.stringOf("isp");
    lat = json.stringOf("lat");
    lon = json.stringOf("lon");
    org = json.stringOf("org");
    query = json.stringOf("query");
    region = json.stringOf("region");
    regionName = json.stringOf("regionName");
    status = json.stringOf("status");
    timezone = json.stringOf("timezone");
    zip = json.stringOf("zip");


    SetDlgItemText(IDC_EDIT1,strOut.getUnicode());

    }