curl --request POST \
  --url https://api.arcus.xyz/v1/modifyOrder \
  --header 'Content-Type: application/json' \
  --header 'X-API-Key: <api-key>' \
  --header 'X-Signature: <api-key>' \
  --header 'X-Timestamp: <api-key>' \
  --data '
{
  "address": "<string>",
  "accountIndex": 4,
  "marketId": 32767,
  "goodTilTime": "<string>",
  "quantity": "<string>",
  "price": "<string>",
  "reduceOnly": true,
  "orderId": "<string>",
  "clientId": "<string>",
  "clientTime": "<string>"
}
'

import requests

url = "https://api.arcus.xyz/v1/modifyOrder"

payload = {
    "address": "<string>",
    "accountIndex": 4,
    "marketId": 32767,
    "goodTilTime": "<string>",
    "quantity": "<string>",
    "price": "<string>",
    "reduceOnly": True,
    "orderId": "<string>",
    "clientId": "<string>",
    "clientTime": "<string>"
}
headers = {
    "X-API-Key": "<api-key>",
    "X-Timestamp": "<api-key>",
    "X-Signature": "<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>',
    'X-Timestamp': '<api-key>',
    'X-Signature': '<api-key>',
    'Content-Type': 'application/json'
  },
  body: JSON.stringify({
    address: '<string>',
    accountIndex: 4,
    marketId: 32767,
    goodTilTime: '<string>',
    quantity: '<string>',
    price: '<string>',
    reduceOnly: true,
    orderId: '<string>',
    clientId: '<string>',
    clientTime: '<string>'
  })
};

fetch('https://api.arcus.xyz/v1/modifyOrder', 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.arcus.xyz/v1/modifyOrder",
  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([
    'address' => '<string>',
    'accountIndex' => 4,
    'marketId' => 32767,
    'goodTilTime' => '<string>',
    'quantity' => '<string>',
    'price' => '<string>',
    'reduceOnly' => true,
    'orderId' => '<string>',
    'clientId' => '<string>',
    'clientTime' => '<string>'
  ]),
  CURLOPT_HTTPHEADER => [
    "Content-Type: application/json",
    "X-API-Key: <api-key>",
    "X-Signature: <api-key>",
    "X-Timestamp: <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.arcus.xyz/v1/modifyOrder"

	payload := strings.NewReader("{\n  \"address\": \"<string>\",\n  \"accountIndex\": 4,\n  \"marketId\": 32767,\n  \"goodTilTime\": \"<string>\",\n  \"quantity\": \"<string>\",\n  \"price\": \"<string>\",\n  \"reduceOnly\": true,\n  \"orderId\": \"<string>\",\n  \"clientId\": \"<string>\",\n  \"clientTime\": \"<string>\"\n}")

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

	req.Header.Add("X-API-Key", "<api-key>")
	req.Header.Add("X-Timestamp", "<api-key>")
	req.Header.Add("X-Signature", "<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.arcus.xyz/v1/modifyOrder")
  .header("X-API-Key", "<api-key>")
  .header("X-Timestamp", "<api-key>")
  .header("X-Signature", "<api-key>")
  .header("Content-Type", "application/json")
  .body("{\n  \"address\": \"<string>\",\n  \"accountIndex\": 4,\n  \"marketId\": 32767,\n  \"goodTilTime\": \"<string>\",\n  \"quantity\": \"<string>\",\n  \"price\": \"<string>\",\n  \"reduceOnly\": true,\n  \"orderId\": \"<string>\",\n  \"clientId\": \"<string>\",\n  \"clientTime\": \"<string>\"\n}")
  .asString();

require 'uri'
require 'net/http'

url = URI("https://api.arcus.xyz/v1/modifyOrder")

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["X-Timestamp"] = '<api-key>'
request["X-Signature"] = '<api-key>'
request["Content-Type"] = 'application/json'
request.body = "{\n  \"address\": \"<string>\",\n  \"accountIndex\": 4,\n  \"marketId\": 32767,\n  \"goodTilTime\": \"<string>\",\n  \"quantity\": \"<string>\",\n  \"price\": \"<string>\",\n  \"reduceOnly\": true,\n  \"orderId\": \"<string>\",\n  \"clientId\": \"<string>\",\n  \"clientTime\": \"<string>\"\n}"

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

{
  "address": "<string>",
  "accountIndex": 4,
  "clientTime": 123,
  "orderId": "<string>",
  "marketId": 32767,
  "marketDisplayName": "<string>",
  "updateTime": 123,
  "clientId": "<string>",
  "goodTilTime": "<string>",
  "remainingSize": "<string>",
  "filledSize": "<string>",
  "rateLimit": {
    "remaining": 123
  }
}

{
  "address": "<string>",
  "accountIndex": 4,
  "clientTime": 123,
  "orderId": "<string>",
  "marketId": 32767,
  "marketDisplayName": "<string>",
  "updateTime": 123,
  "clientId": "<string>",
  "goodTilTime": "<string>",
  "remainingSize": "<string>",
  "filledSize": "<string>",
  "rateLimit": {
    "remaining": 123
  }
}

{
  "error": "<string>",
  "code": "GEO_RESTRICTED"
}

{
  "error": "<string>",
  "code": "GEO_RESTRICTED"
}

{
  "error": "<string>",
  "code": "GEO_RESTRICTED"
}

{
  "error": "rate limited",
  "reason": "account_empty",
  "retryAfterMs": 850,
  "clientId": "my-order-42"
}

{
  "error": "<string>",
  "code": "GEO_RESTRICTED"
}

{
  "error": "<string>",
  "code": "GEO_RESTRICTED"
}