curl --request POST \
  --url https://{tenant_id}.hanko.io/webauthn/registration/finalize \
  --header 'Content-Type: application/json' \
  --cookie hanko= \
  --data '
{
  "id": "_18q6IjW09tiM4NSbsZjocUtGx00Muv5mN6LZCelCMDD...",
  "rawId": "_18q6IjW09tiM4NSbsZjocUtGx00Muv5mN6LZCelCMDD...",
  "type": "public-key",
  "response": {
    "clientDataJson": "eyJ0eXBlIjoid2ViYXV0aG4uZ2V0IiwiY2hhbGxlbmdl...",
    "attestationObject": "o2NmbXRkbm9uZWdhdHRTdG10oGhhdXRoRGF0YVjfSZYN...",
    "transports": [
      "internal"
    ]
  }
}
'

import requests

url = "https://{tenant_id}.hanko.io/webauthn/registration/finalize"

payload = {
    "id": "_18q6IjW09tiM4NSbsZjocUtGx00Muv5mN6LZCelCMDD...",
    "rawId": "_18q6IjW09tiM4NSbsZjocUtGx00Muv5mN6LZCelCMDD...",
    "type": "public-key",
    "response": {
        "clientDataJson": "eyJ0eXBlIjoid2ViYXV0aG4uZ2V0IiwiY2hhbGxlbmdl...",
        "attestationObject": "o2NmbXRkbm9uZWdhdHRTdG10oGhhdXRoRGF0YVjfSZYN...",
        "transports": ["internal"]
    }
}
headers = {
    "cookie": "hanko=",
    "Content-Type": "application/json"
}

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

print(response.text)

const options = {
  method: 'POST',
  headers: {cookie: 'hanko=', 'Content-Type': 'application/json'},
  body: JSON.stringify({
    id: '_18q6IjW09tiM4NSbsZjocUtGx00Muv5mN6LZCelCMDD...',
    rawId: '_18q6IjW09tiM4NSbsZjocUtGx00Muv5mN6LZCelCMDD...',
    type: 'public-key',
    response: {
      clientDataJson: 'eyJ0eXBlIjoid2ViYXV0aG4uZ2V0IiwiY2hhbGxlbmdl...',
      attestationObject: 'o2NmbXRkbm9uZWdhdHRTdG10oGhhdXRoRGF0YVjfSZYN...',
      transports: ['internal']
    }
  })
};

fetch('https://{tenant_id}.hanko.io/webauthn/registration/finalize', 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://{tenant_id}.hanko.io/webauthn/registration/finalize",
  CURLOPT_RETURNTRANSFER => true,
  CURLOPT_ENCODING => "",
  CURLOPT_MAXREDIRS => 10,
  CURLOPT_TIMEOUT => 30,
  CURLOPT_HTTP_VERSION => CURL_HTTP_VERSION_1_1,
  CURLOPT_CUSTOMREQUEST => "POST",
  CURLOPT_POSTFIELDS => json_encode([
    'id' => '_18q6IjW09tiM4NSbsZjocUtGx00Muv5mN6LZCelCMDD...',
    'rawId' => '_18q6IjW09tiM4NSbsZjocUtGx00Muv5mN6LZCelCMDD...',
    'type' => 'public-key',
    'response' => [
        'clientDataJson' => 'eyJ0eXBlIjoid2ViYXV0aG4uZ2V0IiwiY2hhbGxlbmdl...',
        'attestationObject' => 'o2NmbXRkbm9uZWdhdHRTdG10oGhhdXRoRGF0YVjfSZYN...',
        'transports' => [
                'internal'
        ]
    ]
  ]),
  CURLOPT_COOKIE => "hanko=",
  CURLOPT_HTTPHEADER => [
    "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://{tenant_id}.hanko.io/webauthn/registration/finalize"

	payload := strings.NewReader("{\n  \"id\": \"_18q6IjW09tiM4NSbsZjocUtGx00Muv5mN6LZCelCMDD...\",\n  \"rawId\": \"_18q6IjW09tiM4NSbsZjocUtGx00Muv5mN6LZCelCMDD...\",\n  \"type\": \"public-key\",\n  \"response\": {\n    \"clientDataJson\": \"eyJ0eXBlIjoid2ViYXV0aG4uZ2V0IiwiY2hhbGxlbmdl...\",\n    \"attestationObject\": \"o2NmbXRkbm9uZWdhdHRTdG10oGhhdXRoRGF0YVjfSZYN...\",\n    \"transports\": [\n      \"internal\"\n    ]\n  }\n}")

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

	req.Header.Add("cookie", "hanko=")
	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.post("https://{tenant_id}.hanko.io/webauthn/registration/finalize")
  .header("cookie", "hanko=")
  .header("Content-Type", "application/json")
  .body("{\n  \"id\": \"_18q6IjW09tiM4NSbsZjocUtGx00Muv5mN6LZCelCMDD...\",\n  \"rawId\": \"_18q6IjW09tiM4NSbsZjocUtGx00Muv5mN6LZCelCMDD...\",\n  \"type\": \"public-key\",\n  \"response\": {\n    \"clientDataJson\": \"eyJ0eXBlIjoid2ViYXV0aG4uZ2V0IiwiY2hhbGxlbmdl...\",\n    \"attestationObject\": \"o2NmbXRkbm9uZWdhdHRTdG10oGhhdXRoRGF0YVjfSZYN...\",\n    \"transports\": [\n      \"internal\"\n    ]\n  }\n}")
  .asString();

require 'uri'
require 'net/http'

url = URI("https://{tenant_id}.hanko.io/webauthn/registration/finalize")

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

request = Net::HTTP::Post.new(url)
request["cookie"] = 'hanko='
request["Content-Type"] = 'application/json'
request.body = "{\n  \"id\": \"_18q6IjW09tiM4NSbsZjocUtGx00Muv5mN6LZCelCMDD...\",\n  \"rawId\": \"_18q6IjW09tiM4NSbsZjocUtGx00Muv5mN6LZCelCMDD...\",\n  \"type\": \"public-key\",\n  \"response\": {\n    \"clientDataJson\": \"eyJ0eXBlIjoid2ViYXV0aG4uZ2V0IiwiY2hhbGxlbmdl...\",\n    \"attestationObject\": \"o2NmbXRkbm9uZWdhdHRTdG10oGhhdXRoRGF0YVjfSZYN...\",\n    \"transports\": [\n      \"internal\"\n    ]\n  }\n}"

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

{
  "credential_id": "aSDinaTvuI8gbWludGxpZnk=",
  "user_id": "c339547d-e17d-4ba7-8a1d-b3d5a4d17c1c"
}

{
  "code": 400,
  "message": "Bad Request"
}

{
  "code": 500,
  "message": "Internal Server Error"
}