curl --request POST \
  --url https://api.ubicloud.com/project/{project_id}/location/{location}/kubernetes-cluster/{kubernetes_cluster_reference} \
  --header 'Authorization: Bearer <token>' \
  --header 'Content-Type: application/json' \
  --data '
{
  "version": "<string>",
  "worker_size": "<string>",
  "cp_nodes": 123,
  "worker_nodes": 123
}
'

import requests

url = "https://api.ubicloud.com/project/{project_id}/location/{location}/kubernetes-cluster/{kubernetes_cluster_reference}"

payload = {
    "version": "<string>",
    "worker_size": "<string>",
    "cp_nodes": 123,
    "worker_nodes": 123
}
headers = {
    "Authorization": "Bearer <token>",
    "Content-Type": "application/json"
}

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

print(response.text)

const options = {
  method: 'POST',
  headers: {Authorization: 'Bearer <token>', 'Content-Type': 'application/json'},
  body: JSON.stringify({version: '<string>', worker_size: '<string>', cp_nodes: 123, worker_nodes: 123})
};

fetch('https://api.ubicloud.com/project/{project_id}/location/{location}/kubernetes-cluster/{kubernetes_cluster_reference}', 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.ubicloud.com/project/{project_id}/location/{location}/kubernetes-cluster/{kubernetes_cluster_reference}",
  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([
    'version' => '<string>',
    'worker_size' => '<string>',
    'cp_nodes' => 123,
    'worker_nodes' => 123
  ]),
  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://api.ubicloud.com/project/{project_id}/location/{location}/kubernetes-cluster/{kubernetes_cluster_reference}"

	payload := strings.NewReader("{\n  \"version\": \"<string>\",\n  \"worker_size\": \"<string>\",\n  \"cp_nodes\": 123,\n  \"worker_nodes\": 123\n}")

	req, _ := http.NewRequest("POST", 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.post("https://api.ubicloud.com/project/{project_id}/location/{location}/kubernetes-cluster/{kubernetes_cluster_reference}")
  .header("Authorization", "Bearer <token>")
  .header("Content-Type", "application/json")
  .body("{\n  \"version\": \"<string>\",\n  \"worker_size\": \"<string>\",\n  \"cp_nodes\": 123,\n  \"worker_nodes\": 123\n}")
  .asString();

require 'uri'
require 'net/http'

url = URI("https://api.ubicloud.com/project/{project_id}/location/{location}/kubernetes-cluster/{kubernetes_cluster_reference}")

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

request = Net::HTTP::Post.new(url)
request["Authorization"] = 'Bearer <token>'
request["Content-Type"] = 'application/json'
request.body = "{\n  \"version\": \"<string>\",\n  \"worker_size\": \"<string>\",\n  \"cp_nodes\": 123,\n  \"worker_nodes\": 123\n}"

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

{
  "cp_node_count": 123,
  "id": "kcqxhqbg86sj0ng5e9ck5n191z",
  "location": "eu-central-h1",
  "name": "my-cluster-name",
  "node_size": "<string>",
  "version": "<string>",
  "cp_vms": [
    {
      "boot_image": "<string>",
      "id": "vmhfy8gff8c67hasb0eez2k1pd",
      "ip4": "127.0.0.1",
      "ip4_enabled": true,
      "ip6": "2606:4700:3108::ac42:2835",
      "location": "eu-central-h1",
      "name": "my-vm-name",
      "size": "<string>",
      "state": "<string>",
      "storage_size_gib": 123,
      "unix_user": "<string>"
    }
  ],
  "display_state": "<string>",
  "nodepools": [
    {
      "kubernetes_cluster_id": "kcqxhqbg86sj0ng5e9ck5n191z",
      "id": "knqxhqbg86sj0ng5e9ck5n191z",
      "name": "my-nodepool-name",
      "node_count": 123,
      "node_size": "<string>",
      "vms": [
        {
          "boot_image": "<string>",
          "id": "vmhfy8gff8c67hasb0eez2k1pd",
          "ip4": "127.0.0.1",
          "ip4_enabled": true,
          "ip6": "2606:4700:3108::ac42:2835",
          "location": "eu-central-h1",
          "name": "my-vm-name",
          "size": "<string>",
          "state": "<string>",
          "storage_size_gib": 123,
          "unix_user": "<string>"
        }
      ]
    }
  ],
  "services_load_balancer_url": "<string>"
}

{
  "error": {
    "code": 401,
    "message": "There was an error logging in",
    "type": "InvalidCredentials",
    "details": {}
  }
}