curl --request POST \
  --url https://{host}/api/sysprep-templates/preview \
  --header 'Content-Type: application/json' \
  --cookie k8s-gate-session= \
  --data '
{
  "content": "<string>",
  "values": {},
  "variables": [
    {
      "default": "<string>",
      "description": "<string>",
      "label": "<string>",
      "name": "<string>"
    }
  ]
}
'

import requests

url = "https://{host}/api/sysprep-templates/preview"

payload = {
    "content": "<string>",
    "values": {},
    "variables": [
        {
            "default": "<string>",
            "description": "<string>",
            "label": "<string>",
            "name": "<string>"
        }
    ]
}
headers = {
    "cookie": "k8s-gate-session=",
    "Content-Type": "application/json"
}

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

print(response.text)

const options = {
  method: 'POST',
  headers: {cookie: 'k8s-gate-session=', 'Content-Type': 'application/json'},
  body: JSON.stringify({
    content: '<string>',
    values: {},
    variables: [
      {
        default: '<string>',
        description: '<string>',
        label: '<string>',
        name: '<string>'
      }
    ]
  })
};

fetch('https://{host}/api/sysprep-templates/preview', 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://{host}/api/sysprep-templates/preview",
  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([
    'content' => '<string>',
    'values' => [
        
    ],
    'variables' => [
        [
                'default' => '<string>',
                'description' => '<string>',
                'label' => '<string>',
                'name' => '<string>'
        ]
    ]
  ]),
  CURLOPT_COOKIE => "k8s-gate-session=",
  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://{host}/api/sysprep-templates/preview"

	payload := strings.NewReader("{\n  \"content\": \"<string>\",\n  \"values\": {},\n  \"variables\": [\n    {\n      \"default\": \"<string>\",\n      \"description\": \"<string>\",\n      \"label\": \"<string>\",\n      \"name\": \"<string>\"\n    }\n  ]\n}")

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

	req.Header.Add("cookie", "k8s-gate-session=")
	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://{host}/api/sysprep-templates/preview")
  .header("cookie", "k8s-gate-session=")
  .header("Content-Type", "application/json")
  .body("{\n  \"content\": \"<string>\",\n  \"values\": {},\n  \"variables\": [\n    {\n      \"default\": \"<string>\",\n      \"description\": \"<string>\",\n      \"label\": \"<string>\",\n      \"name\": \"<string>\"\n    }\n  ]\n}")
  .asString();

require 'uri'
require 'net/http'

url = URI("https://{host}/api/sysprep-templates/preview")

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

request = Net::HTTP::Post.new(url)
request["cookie"] = 'k8s-gate-session='
request["Content-Type"] = 'application/json'
request.body = "{\n  \"content\": \"<string>\",\n  \"values\": {},\n  \"variables\": [\n    {\n      \"default\": \"<string>\",\n      \"description\": \"<string>\",\n      \"label\": \"<string>\",\n      \"name\": \"<string>\"\n    }\n  ]\n}"

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

{}

{
  "error": "<string>"
}