curl --request POST \
  --url https://api.centosfi.com/v1/complex-orders \
  --header 'Content-Type: application/json' \
  --data '
{
  "subaccount_id": "3c90c3cc-0d44-4b50-8888-8dd25736052a",
  "centos_id": 123,
  "custom_asset_id": "3c90c3cc-0d44-4b50-8888-8dd25736052a",
  "conditional_order_params": {
    "trigger_order": {
      "qty": 123,
      "buy_flag": true,
      "price": 0.5,
      "stop_order_price": 0.5
    },
    "stop_order_price": 0.5,
    "parent_centos_order_id": "3c90c3cc-0d44-4b50-8888-8dd25736052a",
    "parent_complex_order_id": "3c90c3cc-0d44-4b50-8888-8dd25736052a"
  }
}
'

import requests

url = "https://api.centosfi.com/v1/complex-orders"

payload = {
    "subaccount_id": "3c90c3cc-0d44-4b50-8888-8dd25736052a",
    "centos_id": 123,
    "custom_asset_id": "3c90c3cc-0d44-4b50-8888-8dd25736052a",
    "conditional_order_params": {
        "trigger_order": {
            "qty": 123,
            "buy_flag": True,
            "price": 0.5,
            "stop_order_price": 0.5
        },
        "stop_order_price": 0.5,
        "parent_centos_order_id": "3c90c3cc-0d44-4b50-8888-8dd25736052a",
        "parent_complex_order_id": "3c90c3cc-0d44-4b50-8888-8dd25736052a"
    }
}
headers = {"Content-Type": "application/json"}

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

print(response.text)

const options = {
  method: 'POST',
  headers: {'Content-Type': 'application/json'},
  body: JSON.stringify({
    subaccount_id: '3c90c3cc-0d44-4b50-8888-8dd25736052a',
    centos_id: 123,
    custom_asset_id: '3c90c3cc-0d44-4b50-8888-8dd25736052a',
    conditional_order_params: {
      trigger_order: {qty: 123, buy_flag: true, price: 0.5, stop_order_price: 0.5},
      stop_order_price: 0.5,
      parent_centos_order_id: '3c90c3cc-0d44-4b50-8888-8dd25736052a',
      parent_complex_order_id: '3c90c3cc-0d44-4b50-8888-8dd25736052a'
    }
  })
};

fetch('https://api.centosfi.com/v1/complex-orders', 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.centosfi.com/v1/complex-orders",
  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([
    'subaccount_id' => '3c90c3cc-0d44-4b50-8888-8dd25736052a',
    'centos_id' => 123,
    'custom_asset_id' => '3c90c3cc-0d44-4b50-8888-8dd25736052a',
    'conditional_order_params' => [
        'trigger_order' => [
                'qty' => 123,
                'buy_flag' => true,
                'price' => 0.5,
                'stop_order_price' => 0.5
        ],
        'stop_order_price' => 0.5,
        'parent_centos_order_id' => '3c90c3cc-0d44-4b50-8888-8dd25736052a',
        'parent_complex_order_id' => '3c90c3cc-0d44-4b50-8888-8dd25736052a'
    ]
  ]),
  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://api.centosfi.com/v1/complex-orders"

	payload := strings.NewReader("{\n  \"subaccount_id\": \"3c90c3cc-0d44-4b50-8888-8dd25736052a\",\n  \"centos_id\": 123,\n  \"custom_asset_id\": \"3c90c3cc-0d44-4b50-8888-8dd25736052a\",\n  \"conditional_order_params\": {\n    \"trigger_order\": {\n      \"qty\": 123,\n      \"buy_flag\": true,\n      \"price\": 0.5,\n      \"stop_order_price\": 0.5\n    },\n    \"stop_order_price\": 0.5,\n    \"parent_centos_order_id\": \"3c90c3cc-0d44-4b50-8888-8dd25736052a\",\n    \"parent_complex_order_id\": \"3c90c3cc-0d44-4b50-8888-8dd25736052a\"\n  }\n}")

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

	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.centosfi.com/v1/complex-orders")
  .header("Content-Type", "application/json")
  .body("{\n  \"subaccount_id\": \"3c90c3cc-0d44-4b50-8888-8dd25736052a\",\n  \"centos_id\": 123,\n  \"custom_asset_id\": \"3c90c3cc-0d44-4b50-8888-8dd25736052a\",\n  \"conditional_order_params\": {\n    \"trigger_order\": {\n      \"qty\": 123,\n      \"buy_flag\": true,\n      \"price\": 0.5,\n      \"stop_order_price\": 0.5\n    },\n    \"stop_order_price\": 0.5,\n    \"parent_centos_order_id\": \"3c90c3cc-0d44-4b50-8888-8dd25736052a\",\n    \"parent_complex_order_id\": \"3c90c3cc-0d44-4b50-8888-8dd25736052a\"\n  }\n}")
  .asString();

require 'uri'
require 'net/http'

url = URI("https://api.centosfi.com/v1/complex-orders")

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

request = Net::HTTP::Post.new(url)
request["Content-Type"] = 'application/json'
request.body = "{\n  \"subaccount_id\": \"3c90c3cc-0d44-4b50-8888-8dd25736052a\",\n  \"centos_id\": 123,\n  \"custom_asset_id\": \"3c90c3cc-0d44-4b50-8888-8dd25736052a\",\n  \"conditional_order_params\": {\n    \"trigger_order\": {\n      \"qty\": 123,\n      \"buy_flag\": true,\n      \"price\": 0.5,\n      \"stop_order_price\": 0.5\n    },\n    \"stop_order_price\": 0.5,\n    \"parent_centos_order_id\": \"3c90c3cc-0d44-4b50-8888-8dd25736052a\",\n    \"parent_complex_order_id\": \"3c90c3cc-0d44-4b50-8888-8dd25736052a\"\n  }\n}"

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

{
  "complex_order_id": "3c90c3cc-0d44-4b50-8888-8dd25736052a"
}

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