curl --request POST \
  --url https://api-options.sandbox.rails.xyz/v1/matching/orders/cancel-all \
  --header 'Authorization: Bearer <token>' \
  --header 'Content-Type: application/json' \
  --data '
{
  "clientRequestId": "c0a0d2d0-6b1e-4f3a-8d2b-5e7f9a1b2c3d",
  "contract": "BTC-7FEB26-100000-C"
}
'

import requests

url = "https://api-options.sandbox.rails.xyz/v1/matching/orders/cancel-all"

payload = {
    "clientRequestId": "c0a0d2d0-6b1e-4f3a-8d2b-5e7f9a1b2c3d",
    "contract": "BTC-7FEB26-100000-C"
}
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({
    clientRequestId: 'c0a0d2d0-6b1e-4f3a-8d2b-5e7f9a1b2c3d',
    contract: 'BTC-7FEB26-100000-C'
  })
};

fetch('https://api-options.sandbox.rails.xyz/v1/matching/orders/cancel-all', 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-options.sandbox.rails.xyz/v1/matching/orders/cancel-all",
  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([
    'clientRequestId' => 'c0a0d2d0-6b1e-4f3a-8d2b-5e7f9a1b2c3d',
    'contract' => 'BTC-7FEB26-100000-C'
  ]),
  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-options.sandbox.rails.xyz/v1/matching/orders/cancel-all"

	payload := strings.NewReader("{\n  \"clientRequestId\": \"c0a0d2d0-6b1e-4f3a-8d2b-5e7f9a1b2c3d\",\n  \"contract\": \"BTC-7FEB26-100000-C\"\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-options.sandbox.rails.xyz/v1/matching/orders/cancel-all")
  .header("Authorization", "Bearer <token>")
  .header("Content-Type", "application/json")
  .body("{\n  \"clientRequestId\": \"c0a0d2d0-6b1e-4f3a-8d2b-5e7f9a1b2c3d\",\n  \"contract\": \"BTC-7FEB26-100000-C\"\n}")
  .asString();

require 'uri'
require 'net/http'

url = URI("https://api-options.sandbox.rails.xyz/v1/matching/orders/cancel-all")

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  \"clientRequestId\": \"c0a0d2d0-6b1e-4f3a-8d2b-5e7f9a1b2c3d\",\n  \"contract\": \"BTC-7FEB26-100000-C\"\n}"

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

{
  "action": "cancelAll",
  "clientRequestId": "c0a0d2d0-6b1e-4f3a-8d2b-5e7f9a1b2c3d",
  "contract": "BTC-7FEB26-100000-C",
  "count": 2,
  "cancels": [
    {
      "queued": true,
      "accepted": false,
      "body": "order queued, pending acceptance",
      "action": "cancel",
      "messageId": "1770000000000-0",
      "clientRequestId": "2b6c8e1a-0d4f-4e7b-9c3a-1f5d7e9b0a2c",
      "contract": "BTC-7FEB26-100000-C",
      "orderId": "01JRQM8H5XYZABCDEFGHJKMNPQ"
    },
    {
      "queued": true,
      "accepted": false,
      "body": "order queued, pending acceptance",
      "action": "cancel",
      "messageId": "1770000000000-1",
      "clientRequestId": "7d3e5f1b-2a4c-4b6d-8e0f-9a1b3c5d7e9f",
      "contract": "BTC-7FEB26-100000-C",
      "orderId": "01JRQM8H5XYZABCDEFGHJKMNPR"
    }
  ]
}

{
  "error": {
    "slug": "BAD_REQUEST",
    "code": "0006"
  },
  "message": "clientRequestId must be a UUID"
}

{
  "error": {
    "slug": "UNAUTHORIZED",
    "code": "0001"
  },
  "message": "unauthorized"
}

{
  "error": {
    "slug": "FORBIDDEN",
    "code": "0008"
  },
  "message": "read-only token cannot create orders"
}

{
  "error": {
    "slug": "SERVICE_UNAVAILABLE",
    "code": "0004"
  },
  "message": "matching service unavailable"
}

{
  "error": {
    "slug": "SERVICE_UNAVAILABLE",
    "code": "0004"
  },
  "message": "matching service timed out"
}