curl --request PUT \
  --url https://console.perfgrid.com/api/v1/domains/{domain}/registrant \
  --header 'Authorization: Bearer <token>' \
  --header 'Content-Type: application/json' \
  --data '
{
  "registrant": {
    "first_name": "<string>",
    "last_name": "<string>",
    "company_name": "<string>",
    "email": "jsmith@example.com",
    "phone": "<string>",
    "address_line_1": "<string>",
    "address_line_2": "<string>",
    "postal_code": "<string>",
    "city": "<string>",
    "region": "<string>",
    "country": "<string>",
    "vat_number": "<string>"
  },
  "contact_id": "<string>",
  "citizenship": "<string>"
}
'

import requests

url = "https://console.perfgrid.com/api/v1/domains/{domain}/registrant"

payload = {
    "registrant": {
        "first_name": "<string>",
        "last_name": "<string>",
        "company_name": "<string>",
        "email": "jsmith@example.com",
        "phone": "<string>",
        "address_line_1": "<string>",
        "address_line_2": "<string>",
        "postal_code": "<string>",
        "city": "<string>",
        "region": "<string>",
        "country": "<string>",
        "vat_number": "<string>"
    },
    "contact_id": "<string>",
    "citizenship": "<string>"
}
headers = {
    "Authorization": "Bearer <token>",
    "Content-Type": "application/json"
}

response = requests.put(url, json=payload, headers=headers)

print(response.text)

const options = {
  method: 'PUT',
  headers: {Authorization: 'Bearer <token>', 'Content-Type': 'application/json'},
  body: JSON.stringify({
    registrant: {
      first_name: '<string>',
      last_name: '<string>',
      company_name: '<string>',
      email: 'jsmith@example.com',
      phone: '<string>',
      address_line_1: '<string>',
      address_line_2: '<string>',
      postal_code: '<string>',
      city: '<string>',
      region: '<string>',
      country: '<string>',
      vat_number: '<string>'
    },
    contact_id: '<string>',
    citizenship: '<string>'
  })
};

fetch('https://console.perfgrid.com/api/v1/domains/{domain}/registrant', options)
  .then(res => res.json())
  .then(res => console.log(res))
  .catch(err => console.error(err));

<?php

$curl = curl_init();

curl_setopt_array($curl, [
  CURLOPT_URL => "https://console.perfgrid.com/api/v1/domains/{domain}/registrant",
  CURLOPT_RETURNTRANSFER => true,
  CURLOPT_ENCODING => "",
  CURLOPT_MAXREDIRS => 10,
  CURLOPT_TIMEOUT => 30,
  CURLOPT_HTTP_VERSION => CURL_HTTP_VERSION_1_1,
  CURLOPT_CUSTOMREQUEST => "PUT",
  CURLOPT_POSTFIELDS => json_encode([
    'registrant' => [
        'first_name' => '<string>',
        'last_name' => '<string>',
        'company_name' => '<string>',
        'email' => 'jsmith@example.com',
        'phone' => '<string>',
        'address_line_1' => '<string>',
        'address_line_2' => '<string>',
        'postal_code' => '<string>',
        'city' => '<string>',
        'region' => '<string>',
        'country' => '<string>',
        'vat_number' => '<string>'
    ],
    'contact_id' => '<string>',
    'citizenship' => '<string>'
  ]),
  CURLOPT_HTTPHEADER => [
    "Authorization: Bearer <token>",
    "Content-Type: application/json"
  ],
]);

$response = curl_exec($curl);
$err = curl_error($curl);

curl_close($curl);

if ($err) {
  echo "cURL Error #:" . $err;
} else {
  echo $response;
}

package main

import (
	"fmt"
	"strings"
	"net/http"
	"io"
)

func main() {

	url := "https://console.perfgrid.com/api/v1/domains/{domain}/registrant"

	payload := strings.NewReader("{\n  \"registrant\": {\n    \"first_name\": \"<string>\",\n    \"last_name\": \"<string>\",\n    \"company_name\": \"<string>\",\n    \"email\": \"jsmith@example.com\",\n    \"phone\": \"<string>\",\n    \"address_line_1\": \"<string>\",\n    \"address_line_2\": \"<string>\",\n    \"postal_code\": \"<string>\",\n    \"city\": \"<string>\",\n    \"region\": \"<string>\",\n    \"country\": \"<string>\",\n    \"vat_number\": \"<string>\"\n  },\n  \"contact_id\": \"<string>\",\n  \"citizenship\": \"<string>\"\n}")

	req, _ := http.NewRequest("PUT", url, payload)

	req.Header.Add("Authorization", "Bearer <token>")
	req.Header.Add("Content-Type", "application/json")

	res, _ := http.DefaultClient.Do(req)

	defer res.Body.Close()
	body, _ := io.ReadAll(res.Body)

	fmt.Println(string(body))

}

HttpResponse<String> response = Unirest.put("https://console.perfgrid.com/api/v1/domains/{domain}/registrant")
  .header("Authorization", "Bearer <token>")
  .header("Content-Type", "application/json")
  .body("{\n  \"registrant\": {\n    \"first_name\": \"<string>\",\n    \"last_name\": \"<string>\",\n    \"company_name\": \"<string>\",\n    \"email\": \"jsmith@example.com\",\n    \"phone\": \"<string>\",\n    \"address_line_1\": \"<string>\",\n    \"address_line_2\": \"<string>\",\n    \"postal_code\": \"<string>\",\n    \"city\": \"<string>\",\n    \"region\": \"<string>\",\n    \"country\": \"<string>\",\n    \"vat_number\": \"<string>\"\n  },\n  \"contact_id\": \"<string>\",\n  \"citizenship\": \"<string>\"\n}")
  .asString();

require 'uri'
require 'net/http'

url = URI("https://console.perfgrid.com/api/v1/domains/{domain}/registrant")

http = Net::HTTP.new(url.host, url.port)
http.use_ssl = true

request = Net::HTTP::Put.new(url)
request["Authorization"] = 'Bearer <token>'
request["Content-Type"] = 'application/json'
request.body = "{\n  \"registrant\": {\n    \"first_name\": \"<string>\",\n    \"last_name\": \"<string>\",\n    \"company_name\": \"<string>\",\n    \"email\": \"jsmith@example.com\",\n    \"phone\": \"<string>\",\n    \"address_line_1\": \"<string>\",\n    \"address_line_2\": \"<string>\",\n    \"postal_code\": \"<string>\",\n    \"city\": \"<string>\",\n    \"region\": \"<string>\",\n    \"country\": \"<string>\",\n    \"vat_number\": \"<string>\"\n  },\n  \"contact_id\": \"<string>\",\n  \"citizenship\": \"<string>\"\n}"

response = http.request(request)
puts response.read_body

{
  "data": {
    "id": "<string>",
    "name": "<string>",
    "ascii_name": "<string>",
    "status": "pending_registration",
    "registered_on": "<string>",
    "expires_on": "<string>",
    "next_due_date": "<string>",
    "auto_renew": true,
    "whois_privacy": true,
    "is_locked": true,
    "manageable": true,
    "nameservers": [
      "<string>"
    ],
    "dnssec": [
      "<unknown>"
    ],
    "registrant": {}
  }
}

{
  "message": "<string>",
  "errors": {}
}