curl --request POST \
  --url https://controller.platform.simplecloud.app/v0/players/connect \
  --header 'Content-Type: application/json' \
  --header 'X-Network-Credential: <x-network-credential>' \
  --header 'X-Network-ID: <x-network-id>' \
  --data '
{
  "persistent_server_id": "123e4567-e89b-12d3-a456-426614174000",
  "selection_mode": "RANDOM",
  "server_group_id": "123e4567-e89b-12d3-a456-426614174000",
  "server_id": "lobby-1"
}
'

import requests

url = "https://controller.platform.simplecloud.app/v0/players/connect"

payload = {
    "persistent_server_id": "123e4567-e89b-12d3-a456-426614174000",
    "selection_mode": "RANDOM",
    "server_group_id": "123e4567-e89b-12d3-a456-426614174000",
    "server_id": "lobby-1"
}
headers = {
    "X-Network-ID": "<x-network-id>",
    "X-Network-Credential": "<x-network-credential>",
    "Content-Type": "application/json"
}

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

print(response.text)

const options = {
  method: 'POST',
  headers: {
    'X-Network-ID': '<x-network-id>',
    'X-Network-Credential': '<x-network-credential>',
    'Content-Type': 'application/json'
  },
  body: JSON.stringify({
    persistent_server_id: '123e4567-e89b-12d3-a456-426614174000',
    selection_mode: 'RANDOM',
    server_group_id: '123e4567-e89b-12d3-a456-426614174000',
    server_id: 'lobby-1'
  })
};

fetch('https://controller.platform.simplecloud.app/v0/players/connect', 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://controller.platform.simplecloud.app/v0/players/connect",
  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([
    'persistent_server_id' => '123e4567-e89b-12d3-a456-426614174000',
    'selection_mode' => 'RANDOM',
    'server_group_id' => '123e4567-e89b-12d3-a456-426614174000',
    'server_id' => 'lobby-1'
  ]),
  CURLOPT_HTTPHEADER => [
    "Content-Type: application/json",
    "X-Network-Credential: <x-network-credential>",
    "X-Network-ID: <x-network-id>"
  ],
]);

$response = curl_exec($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://controller.platform.simplecloud.app/v0/players/connect"

	payload := strings.NewReader("{\n  \"persistent_server_id\": \"123e4567-e89b-12d3-a456-426614174000\",\n  \"selection_mode\": \"RANDOM\",\n  \"server_group_id\": \"123e4567-e89b-12d3-a456-426614174000\",\n  \"server_id\": \"lobby-1\"\n}")

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

	req.Header.Add("X-Network-ID", "<x-network-id>")
	req.Header.Add("X-Network-Credential", "<x-network-credential>")
	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://controller.platform.simplecloud.app/v0/players/connect")
  .header("X-Network-ID", "<x-network-id>")
  .header("X-Network-Credential", "<x-network-credential>")
  .header("Content-Type", "application/json")
  .body("{\n  \"persistent_server_id\": \"123e4567-e89b-12d3-a456-426614174000\",\n  \"selection_mode\": \"RANDOM\",\n  \"server_group_id\": \"123e4567-e89b-12d3-a456-426614174000\",\n  \"server_id\": \"lobby-1\"\n}")
  .asString();

require 'uri'
require 'net/http'

url = URI("https://controller.platform.simplecloud.app/v0/players/connect")

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

request = Net::HTTP::Post.new(url)
request["X-Network-ID"] = '<x-network-id>'
request["X-Network-Credential"] = '<x-network-credential>'
request["Content-Type"] = 'application/json'
request.body = "{\n  \"persistent_server_id\": \"123e4567-e89b-12d3-a456-426614174000\",\n  \"selection_mode\": \"RANDOM\",\n  \"server_group_id\": \"123e4567-e89b-12d3-a456-426614174000\",\n  \"server_id\": \"lobby-1\"\n}"

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

{
  "message": "Connect request sent",
  "player_id": "069a79f4-44e9-4726-a5be-fca90e38aaf5",
  "server_name": "lobby-1",
  "success": true
}

{
  "error": "<string>"
}

{
  "error": "<string>"
}

{
  "error": "<string>"
}