curl --request POST \
  --url https://v2.55-tech.com/futures/place-orders \
  --header 'Content-Type: application/json' \
  --header 'x-api-key: <api-key>' \
  --data '
{
  "orders": [
    {
      "requestUuid": "eb45b192-317b-42d5-9f65-af497b9fa8c1",
      "futureId": "id1012639310001",
      "futureOutcomeId": 0,
      "participantId": 7193,
      "orderPrice": 4,
      "orderStake": 25,
      "userRef": "bettor1234",
      "testOrder": false,
      "bookmakers": "polymarket,kalshi"
    }
  ]
}
'

import requests

url = "https://v2.55-tech.com/futures/place-orders"

payload = { "orders": [
        {
            "requestUuid": "eb45b192-317b-42d5-9f65-af497b9fa8c1",
            "futureId": "id1012639310001",
            "futureOutcomeId": 0,
            "participantId": 7193,
            "orderPrice": 4,
            "orderStake": 25,
            "userRef": "bettor1234",
            "testOrder": False,
            "bookmakers": "polymarket,kalshi"
        }
    ] }
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({
    orders: [
      {
        requestUuid: 'eb45b192-317b-42d5-9f65-af497b9fa8c1',
        futureId: 'id1012639310001',
        futureOutcomeId: 0,
        participantId: 7193,
        orderPrice: 4,
        orderStake: 25,
        userRef: 'bettor1234',
        testOrder: false,
        bookmakers: 'polymarket,kalshi'
      }
    ]
  })
};

fetch('https://v2.55-tech.com/futures/place-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://v2.55-tech.com/futures/place-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([
    'orders' => [
        [
                'requestUuid' => 'eb45b192-317b-42d5-9f65-af497b9fa8c1',
                'futureId' => 'id1012639310001',
                'futureOutcomeId' => 0,
                'participantId' => 7193,
                'orderPrice' => 4,
                'orderStake' => 25,
                'userRef' => 'bettor1234',
                'testOrder' => false,
                'bookmakers' => 'polymarket,kalshi'
        ]
    ]
  ]),
  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://v2.55-tech.com/futures/place-orders"

	payload := strings.NewReader("{\n  \"orders\": [\n    {\n      \"requestUuid\": \"eb45b192-317b-42d5-9f65-af497b9fa8c1\",\n      \"futureId\": \"id1012639310001\",\n      \"futureOutcomeId\": 0,\n      \"participantId\": 7193,\n      \"orderPrice\": 4,\n      \"orderStake\": 25,\n      \"userRef\": \"bettor1234\",\n      \"testOrder\": false,\n      \"bookmakers\": \"polymarket,kalshi\"\n    }\n  ]\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://v2.55-tech.com/futures/place-orders")
  .header("x-api-key", "<api-key>")
  .header("Content-Type", "application/json")
  .body("{\n  \"orders\": [\n    {\n      \"requestUuid\": \"eb45b192-317b-42d5-9f65-af497b9fa8c1\",\n      \"futureId\": \"id1012639310001\",\n      \"futureOutcomeId\": 0,\n      \"participantId\": 7193,\n      \"orderPrice\": 4,\n      \"orderStake\": 25,\n      \"userRef\": \"bettor1234\",\n      \"testOrder\": false,\n      \"bookmakers\": \"polymarket,kalshi\"\n    }\n  ]\n}")
  .asString();

require 'uri'
require 'net/http'

url = URI("https://v2.55-tech.com/futures/place-orders")

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  \"orders\": [\n    {\n      \"requestUuid\": \"eb45b192-317b-42d5-9f65-af497b9fa8c1\",\n      \"futureId\": \"id1012639310001\",\n      \"futureOutcomeId\": 0,\n      \"participantId\": 7193,\n      \"orderPrice\": 4,\n      \"orderStake\": 25,\n      \"userRef\": \"bettor1234\",\n      \"testOrder\": false,\n      \"bookmakers\": \"polymarket,kalshi\"\n    }\n  ]\n}"

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

{
  "detail": [
    {
      "loc": [
        "body",
        "orders",
        0
      ],
      "msg": "Value error, fixtureId, outcomeId belong to fixtures, not futures. Post fixture orders to /fixtures/place-orders.",
      "type": "value_error"
    }
  ]
}

{
  "detail": "Futures order placement is not yet implemented. The `orders` table has no futures identity columns (`orders.fixtureId` is NOT NULL and a futureId is not a fixtureId), so this endpoint answers 501 rather than storing a futures selection in a fixture's column. Futures identifiers ARE validated here: a malformed payload is a 422 even today."
}