(.NET Core C#) RDAP Domain Lookup using rdap.org

Demonstrates doing an RDAP domain lookup using the rdap.org public RDAP server.

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

Chilkat.Http http = new Chilkat.Http();

// Send HTTP requests to https://rdap.org/<type>/<object>, where <type> is the object type (one of domain, ip, autnum, entity etc)
// and <object> is the object identifier (eg example.com, 192.168.0.1, 64496, etc).

// For example, here's a lookup for "oracle.com"
Chilkat.StringBuilder sbResponse = new Chilkat.StringBuilder();
bool success = http.QuickGetSb("https://rdap.org/domain/oracle.com",sbResponse);
if (success == false) {
    Debug.WriteLine(http.LastErrorText);
    return;
}

int statusCode = http.LastStatus;
if (statusCode != 200) {
    Debug.WriteLine("Error response:");
    Debug.WriteLine(sbResponse.GetAsString());
    Debug.WriteLine("status code: " + Convert.ToString(statusCode));
    return;
}

// Load the JSON response and examine..

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

Chilkat.JsonObject json = new Chilkat.JsonObject();
json.LoadSb(sbResponse);
json.EmitCompact = false;
Debug.WriteLine(json.Emit());

// Here's a sample response, and the parsing code generated from the above online tool follows..

// {
//   "objectClassName": "domain",
//   "handle": "607513_DOMAIN_COM-VRSN",
//   "ldhName": "ORACLE.COM",
//   "links": [
//     {
//       "value": "https:\/\/rdap.verisign.com\/com\/v1\/domain\/ORACLE.COM",
//       "rel": "self",
//       "href": "https:\/\/rdap.verisign.com\/com\/v1\/domain\/ORACLE.COM",
//       "type": "application\/rdap+json"
//     },
//     {
//       "value": "https:\/\/rdap.markmonitor.com\/rdap\/domain\/ORACLE.COM",
//       "rel": "related",
//       "href": "https:\/\/rdap.markmonitor.com\/rdap\/domain\/ORACLE.COM",
//       "type": "application\/rdap+json"
//     }
//   ],
//   "status": [
//     "client delete prohibited",
//     "client transfer prohibited",
//     "client update prohibited",
//     "server delete prohibited",
//     "server transfer prohibited",
//     "server update prohibited"
//   ],
//   "entities": [
//     {
//       "objectClassName": "entity",
//       "handle": "292",
//       "roles": [
//         "registrar"
//       ],
//       "publicIds": [
//         {
//           "type": "IANA Registrar ID",
//           "identifier": "292"
//         }
//       ],
//       "vcardArray": [
//         "vcard",
//         [
//           [
//             "version",
//             {},
//             "text",
//             "4.0"
//           ],
//           [
//             "fn",
//             {},
//             "text",
//             "MarkMonitor Inc."
//           ]
//         ]
//       ],
//       "entities": [
//         {
//           "objectClassName": "entity",
//           "roles": [
//             "abuse"
//           ],
//           "vcardArray": [
//             "vcard",
//             [
//               [
//                 "version",
//                 {},
//                 "text",
//                 "4.0"
//               ],
//               [
//                 "fn",
//                 {},
//                 "text",
//                 ""
//               ],
//               [
//                 "tel",
//                 {
//                   "type": "voice"
//                 },
//                 "uri",
//                 "tel:+1.2086851750"
//               ],
//               [
//                 "email",
//                 {},
//                 "text",
//                 "abusecomplaints@markmonitor.com"
//               ]
//             ]
//           ]
//         }
//       ]
//     }
//   ],
//   "events": [
//     {
//       "eventAction": "registration",
//       "eventDate": "1988-12-02T05:00:00Z"
//     },
//     {
//       "eventAction": "expiration",
//       "eventDate": "2025-12-01T05:00:00Z"
//     },
//     {
//       "eventAction": "last changed",
//       "eventDate": "2024-10-30T09:32:52Z"
//     },
//     {
//       "eventAction": "last update of RDAP database",
//       "eventDate": "2024-11-26T14:11:14Z"
//     }
//   ],
//   "secureDNS": {
//     "delegationSigned": false
//   },
//   "nameservers": [
//     {
//       "objectClassName": "nameserver",
//       "ldhName": "A1-160.AKAM.NET"
//     },
//     {
//       "objectClassName": "nameserver",
//       "ldhName": "A11-66.AKAM.NET"
//     },
//     {
//       "objectClassName": "nameserver",
//       "ldhName": "A13-65.AKAM.NET"
//     },
//     {
//       "objectClassName": "nameserver",
//       "ldhName": "A18-67.AKAM.NET"
//     },
//     {
//       "objectClassName": "nameserver",
//       "ldhName": "NS1.P201.DNS.ORACLECLOUD.NET"
//     },
//     {
//       "objectClassName": "nameserver",
//       "ldhName": "NS2.P201.DNS.ORACLECLOUD.NET"
//     },
//     {
//       "objectClassName": "nameserver",
//       "ldhName": "NS3.P201.DNS.ORACLECLOUD.NET"
//     },
//     {
//       "objectClassName": "nameserver",
//       "ldhName": "NS4.P201.DNS.ORACLECLOUD.NET"
//     }
//   ],
//   "rdapConformance": [
//     "rdap_level_0",
//     "icann_rdap_technical_implementation_guide_0",
//     "icann_rdap_response_profile_0"
//   ],
//   "notices": [
//     {
//       "title": "Terms of Use",
//       "description": [
//         "Service subject to Terms of Use."
//       ],
//       "links": [
//         {
//           "href": "https:\/\/www.verisign.com\/domain-names\/registration-data-access-protocol\/terms-service\/index.xhtml",
//           "type": "text\/html"
//         }
//       ]
//     },
//     {
//       "title": "Status Codes",
//       "description": [
//         "For more information on domain status codes, please visit https:\/\/icann.org\/epp"
//       ],
//       "links": [
//         {
//           "href": "https:\/\/icann.org\/epp",
//           "type": "text\/html"
//         }
//       ]
//     },
//     {
//       "title": "RDDS Inaccuracy Complaint Form",
//       "description": [
//         "URL of the ICANN RDDS Inaccuracy Complaint Form: https:\/\/icann.org\/wicf"
//       ],
//       "links": [
//         {
//           "href": "https:\/\/icann.org\/wicf",
//           "type": "text\/html"
//         }
//       ]
//     }
//   ]
// }

string value;
string rel;
string href;
string v_type;
string strVal;
int j;
int count_j;
string identifier;
int k;
int count_k;
Chilkat.JsonObject json1 = null;
int i1;
int count_i1;
int j1;
int count_j1;
string eventAction;
string eventDate;
string title;

string objectClassName = json.StringOf("objectClassName");
string handle = json.StringOf("handle");
string ldhName = json.StringOf("ldhName");
bool DelegationSigned = json.BoolOf("secureDNS.delegationSigned");
int i = 0;
int count_i = json.SizeOfArray("links");
while (i < count_i) {
    json.I = i;
    value = json.StringOf("links[i].value");
    rel = json.StringOf("links[i].rel");
    href = json.StringOf("links[i].href");
    v_type = json.StringOf("links[i].type");
    i = i + 1;
}

i = 0;
count_i = json.SizeOfArray("status");
while (i < count_i) {
    json.I = i;
    strVal = json.StringOf("status[i]");
    i = i + 1;
}

i = 0;
count_i = json.SizeOfArray("entities");
while (i < count_i) {
    json.I = i;
    objectClassName = json.StringOf("entities[i].objectClassName");
    handle = json.StringOf("entities[i].handle");
    j = 0;
    count_j = json.SizeOfArray("entities[i].roles");
    while (j < count_j) {
        json.J = j;
        strVal = json.StringOf("entities[i].roles[j]");
        j = j + 1;
    }

    j = 0;
    count_j = json.SizeOfArray("entities[i].publicIds");
    while (j < count_j) {
        json.J = j;
        v_type = json.StringOf("entities[i].publicIds[j].type");
        identifier = json.StringOf("entities[i].publicIds[j].identifier");
        j = j + 1;
    }

    j = 0;
    count_j = json.SizeOfArray("entities[i].vcardArray");
    while (j < count_j) {
        json.J = j;
        strVal = json.StringOf("entities[i].vcardArray[j]");
        k = 0;
        count_k = json.SizeOfArray("entities[i].vcardArray[j]");
        while (k < count_k) {
            json.K = k;

            json1 = json.ObjectOf("entities[i].vcardArray[j][k]");
            i1 = 0;
            count_i1 = json1.SizeOfArray("");
            while (i1 < count_i1) {
                json1.I = i1;
                strVal = json1.StringOf("[i]");
                i1 = i1 + 1;
            }

            k = k + 1;
        }

        j = j + 1;
    }

    j = 0;
    count_j = json.SizeOfArray("entities[i].entities");
    while (j < count_j) {
        json.J = j;
        objectClassName = json.StringOf("entities[i].entities[j].objectClassName");
        k = 0;
        count_k = json.SizeOfArray("entities[i].entities[j].roles");
        while (k < count_k) {
            json.K = k;
            strVal = json.StringOf("entities[i].entities[j].roles[k]");
            k = k + 1;
        }

        k = 0;
        count_k = json.SizeOfArray("entities[i].entities[j].vcardArray");
        while (k < count_k) {
            json.K = k;
            strVal = json.StringOf("entities[i].entities[j].vcardArray[k]");

            json1 = json.ObjectOf("entities[i].entities[j].vcardArray[k]");
            i1 = 0;
            count_i1 = json1.SizeOfArray("");
            while (i1 < count_i1) {
                json1.I = i1;
                j1 = 0;
                count_j1 = json1.SizeOfArray("[i]");
                while (j1 < count_j1) {
                    json1.J = j1;
                    strVal = json1.StringOf("[i][j]");
                    j1 = j1 + 1;
                }

                i1 = i1 + 1;
            }

            k = k + 1;
        }

        j = j + 1;
    }

    i = i + 1;
}

i = 0;
count_i = json.SizeOfArray("events");
while (i < count_i) {
    json.I = i;
    eventAction = json.StringOf("events[i].eventAction");
    eventDate = json.StringOf("events[i].eventDate");
    i = i + 1;
}

i = 0;
count_i = json.SizeOfArray("nameservers");
while (i < count_i) {
    json.I = i;
    objectClassName = json.StringOf("nameservers[i].objectClassName");
    ldhName = json.StringOf("nameservers[i].ldhName");
    i = i + 1;
}

i = 0;
count_i = json.SizeOfArray("rdapConformance");
while (i < count_i) {
    json.I = i;
    strVal = json.StringOf("rdapConformance[i]");
    i = i + 1;
}

i = 0;
count_i = json.SizeOfArray("notices");
while (i < count_i) {
    json.I = i;
    title = json.StringOf("notices[i].title");
    j = 0;
    count_j = json.SizeOfArray("notices[i].description");
    while (j < count_j) {
        json.J = j;
        strVal = json.StringOf("notices[i].description[j]");
        j = j + 1;
    }

    j = 0;
    count_j = json.SizeOfArray("notices[i].links");
    while (j < count_j) {
        json.J = j;
        href = json.StringOf("notices[i].links[j].href");
        v_type = json.StringOf("notices[i].links[j].type");
        j = j + 1;
    }

    i = i + 1;
}