curl --request POST \
  --url https://api.example.com/users/{user_id}/subscription \
  --header 'Content-Type: application/json' \
  --header 'X-API-Key: <api-key>' \
  --data '
{
  "is_trial": false,
  "duration_days": 123,
  "traffic_limit_gb": 123,
  "device_limit": 123,
  "squad_uuid": "<string>",
  "connected_squads": [
    "<string>"
  ],
  "replace_existing": false
}
'

import requests

url = "https://api.example.com/users/{user_id}/subscription"

payload = {
    "is_trial": False,
    "duration_days": 123,
    "traffic_limit_gb": 123,
    "device_limit": 123,
    "squad_uuid": "<string>",
    "connected_squads": ["<string>"],
    "replace_existing": False
}
headers = {
    "X-API-Key": "<api-key>",
    "Content-Type": "application/json"
}

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

print(response.text)

const options = {
  method: 'POST',
  headers: {'X-API-Key': '<api-key>', 'Content-Type': 'application/json'},
  body: JSON.stringify({
    is_trial: false,
    duration_days: 123,
    traffic_limit_gb: 123,
    device_limit: 123,
    squad_uuid: '<string>',
    connected_squads: ['<string>'],
    replace_existing: false
  })
};

fetch('https://api.example.com/users/{user_id}/subscription', 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.example.com/users/{user_id}/subscription",
  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([
    'is_trial' => false,
    'duration_days' => 123,
    'traffic_limit_gb' => 123,
    'device_limit' => 123,
    'squad_uuid' => '<string>',
    'connected_squads' => [
        '<string>'
    ],
    'replace_existing' => false
  ]),
  CURLOPT_HTTPHEADER => [
    "Content-Type: application/json",
    "X-API-Key: <api-key>"
  ],
]);

$response = curl_exec($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.example.com/users/{user_id}/subscription"

	payload := strings.NewReader("{\n  \"is_trial\": false,\n  \"duration_days\": 123,\n  \"traffic_limit_gb\": 123,\n  \"device_limit\": 123,\n  \"squad_uuid\": \"<string>\",\n  \"connected_squads\": [\n    \"<string>\"\n  ],\n  \"replace_existing\": false\n}")

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

	req.Header.Add("X-API-Key", "<api-key>")
	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.example.com/users/{user_id}/subscription")
  .header("X-API-Key", "<api-key>")
  .header("Content-Type", "application/json")
  .body("{\n  \"is_trial\": false,\n  \"duration_days\": 123,\n  \"traffic_limit_gb\": 123,\n  \"device_limit\": 123,\n  \"squad_uuid\": \"<string>\",\n  \"connected_squads\": [\n    \"<string>\"\n  ],\n  \"replace_existing\": false\n}")
  .asString();

require 'uri'
require 'net/http'

url = URI("https://api.example.com/users/{user_id}/subscription")

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

request = Net::HTTP::Post.new(url)
request["X-API-Key"] = '<api-key>'
request["Content-Type"] = 'application/json'
request.body = "{\n  \"is_trial\": false,\n  \"duration_days\": 123,\n  \"traffic_limit_gb\": 123,\n  \"device_limit\": 123,\n  \"squad_uuid\": \"<string>\",\n  \"connected_squads\": [\n    \"<string>\"\n  ],\n  \"replace_existing\": false\n}"

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

{
  "id": 123,
  "status": "<string>",
  "language": "<string>",
  "balance_kopeks": 123,
  "balance_rubles": 123,
  "has_had_paid_subscription": true,
  "has_made_first_topup": true,
  "created_at": "2023-11-07T05:31:56Z",
  "updated_at": "2023-11-07T05:31:56Z",
  "telegram_id": 123,
  "username": "<string>",
  "first_name": "<string>",
  "last_name": "<string>",
  "referral_code": "<string>",
  "referred_by_id": 123,
  "last_activity": "2023-11-07T05:31:56Z",
  "promo_group": {
    "id": 123,
    "name": "<string>",
    "server_discount_percent": 123,
    "traffic_discount_percent": 123,
    "device_discount_percent": 123,
    "apply_discounts_to_addons": true
  },
  "subscription": {
    "id": 123,
    "status": "<string>",
    "actual_status": "<string>",
    "is_trial": true,
    "start_date": "2023-11-07T05:31:56Z",
    "end_date": "2023-11-07T05:31:56Z",
    "traffic_limit_gb": 123,
    "traffic_used_gb": 123,
    "device_limit": 123,
    "autopay_enabled": true,
    "autopay_days_before": 123,
    "subscription_url": "<string>",
    "subscription_crypto_link": "<string>",
    "connected_squads": [
      "<string>"
    ]
  }
}

{
  "detail": [
    {
      "loc": [
        "<string>"
      ],
      "msg": "<string>",
      "type": "<string>",
      "input": "<unknown>",
      "ctx": {}
    }
  ]
}