curl --request PATCH \
  --url https://api.ngrok.com/reserved_domains/{id} \
  --header 'Authorization: Bearer <token>' \
  --header 'Content-Type: application/json' \
  --header 'ngrok-version: <ngrok-version>' \
  --data '
{
  "id": "<string>",
  "description": "<string>",
  "metadata": "<string>",
  "certificate_id": "<string>",
  "certificate_management_policy": {
    "authority": "<string>",
    "private_key_type": "<string>"
  },
  "resolves_to": [
    {
      "value": "<string>"
    }
  ]
}
'

import requests

url = "https://api.ngrok.com/reserved_domains/{id}"

payload = {
    "id": "<string>",
    "description": "<string>",
    "metadata": "<string>",
    "certificate_id": "<string>",
    "certificate_management_policy": {
        "authority": "<string>",
        "private_key_type": "<string>"
    },
    "resolves_to": [{ "value": "<string>" }]
}
headers = {
    "ngrok-version": "<ngrok-version>",
    "Authorization": "Bearer <token>",
    "Content-Type": "application/json"
}

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

print(response.text)

const options = {
  method: 'PATCH',
  headers: {
    'ngrok-version': '<ngrok-version>',
    Authorization: 'Bearer <token>',
    'Content-Type': 'application/json'
  },
  body: JSON.stringify({
    id: '<string>',
    description: '<string>',
    metadata: '<string>',
    certificate_id: '<string>',
    certificate_management_policy: {authority: '<string>', private_key_type: '<string>'},
    resolves_to: [{value: '<string>'}]
  })
};

fetch('https://api.ngrok.com/reserved_domains/{id}', 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://api.ngrok.com/reserved_domains/{id}",
  CURLOPT_RETURNTRANSFER => true,
  CURLOPT_ENCODING => "",
  CURLOPT_MAXREDIRS => 10,
  CURLOPT_TIMEOUT => 30,
  CURLOPT_HTTP_VERSION => CURL_HTTP_VERSION_1_1,
  CURLOPT_CUSTOMREQUEST => "PATCH",
  CURLOPT_POSTFIELDS => json_encode([
    'id' => '<string>',
    'description' => '<string>',
    'metadata' => '<string>',
    'certificate_id' => '<string>',
    'certificate_management_policy' => [
        'authority' => '<string>',
        'private_key_type' => '<string>'
    ],
    'resolves_to' => [
        [
                'value' => '<string>'
        ]
    ]
  ]),
  CURLOPT_HTTPHEADER => [
    "Authorization: Bearer <token>",
    "Content-Type: application/json",
    "ngrok-version: <ngrok-version>"
  ],
]);

$response = curl_exec($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://api.ngrok.com/reserved_domains/{id}"

	payload := strings.NewReader("{\n  \"id\": \"<string>\",\n  \"description\": \"<string>\",\n  \"metadata\": \"<string>\",\n  \"certificate_id\": \"<string>\",\n  \"certificate_management_policy\": {\n    \"authority\": \"<string>\",\n    \"private_key_type\": \"<string>\"\n  },\n  \"resolves_to\": [\n    {\n      \"value\": \"<string>\"\n    }\n  ]\n}")

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

	req.Header.Add("ngrok-version", "<ngrok-version>")
	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.patch("https://api.ngrok.com/reserved_domains/{id}")
  .header("ngrok-version", "<ngrok-version>")
  .header("Authorization", "Bearer <token>")
  .header("Content-Type", "application/json")
  .body("{\n  \"id\": \"<string>\",\n  \"description\": \"<string>\",\n  \"metadata\": \"<string>\",\n  \"certificate_id\": \"<string>\",\n  \"certificate_management_policy\": {\n    \"authority\": \"<string>\",\n    \"private_key_type\": \"<string>\"\n  },\n  \"resolves_to\": [\n    {\n      \"value\": \"<string>\"\n    }\n  ]\n}")
  .asString();

require 'uri'
require 'net/http'

url = URI("https://api.ngrok.com/reserved_domains/{id}")

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

request = Net::HTTP::Patch.new(url)
request["ngrok-version"] = '<ngrok-version>'
request["Authorization"] = 'Bearer <token>'
request["Content-Type"] = 'application/json'
request.body = "{\n  \"id\": \"<string>\",\n  \"description\": \"<string>\",\n  \"metadata\": \"<string>\",\n  \"certificate_id\": \"<string>\",\n  \"certificate_management_policy\": {\n    \"authority\": \"<string>\",\n    \"private_key_type\": \"<string>\"\n  },\n  \"resolves_to\": [\n    {\n      \"value\": \"<string>\"\n    }\n  ]\n}"

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

{
  "id": "<string>",
  "uri": "<string>",
  "created_at": "<string>",
  "description": "<string>",
  "metadata": "<string>",
  "domain": "<string>",
  "region": "<string>",
  "cname_target": "<string>",
  "certificate": {
    "id": "<string>",
    "uri": "<string>"
  },
  "certificate_management_policy": {
    "authority": "<string>",
    "private_key_type": "<string>"
  },
  "certificate_management_status": {
    "renews_at": "<string>",
    "provisioning_job": {
      "error_code": "<string>",
      "msg": "<string>",
      "started_at": "<string>",
      "retries_at": "<string>"
    }
  },
  "acme_challenge_cname_target": "<string>",
  "resolves_to": [
    {
      "value": "<string>"
    }
  ]
}

{
  "status_code": 123,
  "msg": "<string>",
  "error_code": "<string>",
  "details": {}
}

{
  "status_code": 123,
  "msg": "<string>",
  "error_code": "<string>",
  "details": {}
}