curl --request POST \
  --url https://api.prod.polymarketexchange.com/v1/trading/orders/cross \
  --header 'Content-Type: application/json' \
  --data '
{
  "requests": [
    {
      "orderQty": "<string>",
      "symbol": "<string>",
      "price": "<string>",
      "clordId": "<string>",
      "account": "<string>",
      "stopPrice": "<string>",
      "minQty": "<string>",
      "selfMatchPreventionId": "<string>",
      "quote": "<string>",
      "allOrNone": true,
      "sessionId": "<string>",
      "user": "<string>",
      "clientAccountId": "<string>",
      "clientParticipantId": "<string>",
      "participateDontInitiate": true,
      "cashOrderQty": "<string>",
      "strictLimit": true,
      "goodTillTime": "2023-11-07T05:31:56Z",
      "bestLimit": true,
      "immediatelyExecutableLimit": true,
      "ignorePriceValidityChecks": true
    }
  ],
  "crossType": "CROSS_TYPE_ALL_OR_NONE",
  "crossId": "<string>"
}
'

import requests

url = "https://api.prod.polymarketexchange.com/v1/trading/orders/cross"

payload = {
    "requests": [
        {
            "orderQty": "<string>",
            "symbol": "<string>",
            "price": "<string>",
            "clordId": "<string>",
            "account": "<string>",
            "stopPrice": "<string>",
            "minQty": "<string>",
            "selfMatchPreventionId": "<string>",
            "quote": "<string>",
            "allOrNone": True,
            "sessionId": "<string>",
            "user": "<string>",
            "clientAccountId": "<string>",
            "clientParticipantId": "<string>",
            "participateDontInitiate": True,
            "cashOrderQty": "<string>",
            "strictLimit": True,
            "goodTillTime": "2023-11-07T05:31:56Z",
            "bestLimit": True,
            "immediatelyExecutableLimit": True,
            "ignorePriceValidityChecks": True
        }
    ],
    "crossType": "CROSS_TYPE_ALL_OR_NONE",
    "crossId": "<string>"
}
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({
    requests: [
      {
        orderQty: '<string>',
        symbol: '<string>',
        price: '<string>',
        clordId: '<string>',
        account: '<string>',
        stopPrice: '<string>',
        minQty: '<string>',
        selfMatchPreventionId: '<string>',
        quote: '<string>',
        allOrNone: true,
        sessionId: '<string>',
        user: '<string>',
        clientAccountId: '<string>',
        clientParticipantId: '<string>',
        participateDontInitiate: true,
        cashOrderQty: '<string>',
        strictLimit: true,
        goodTillTime: '2023-11-07T05:31:56Z',
        bestLimit: true,
        immediatelyExecutableLimit: true,
        ignorePriceValidityChecks: true
      }
    ],
    crossType: 'CROSS_TYPE_ALL_OR_NONE',
    crossId: '<string>'
  })
};

fetch('https://api.prod.polymarketexchange.com/v1/trading/orders/cross', 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.prod.polymarketexchange.com/v1/trading/orders/cross",
  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([
    'requests' => [
        [
                'orderQty' => '<string>',
                'symbol' => '<string>',
                'price' => '<string>',
                'clordId' => '<string>',
                'account' => '<string>',
                'stopPrice' => '<string>',
                'minQty' => '<string>',
                'selfMatchPreventionId' => '<string>',
                'quote' => '<string>',
                'allOrNone' => true,
                'sessionId' => '<string>',
                'user' => '<string>',
                'clientAccountId' => '<string>',
                'clientParticipantId' => '<string>',
                'participateDontInitiate' => true,
                'cashOrderQty' => '<string>',
                'strictLimit' => true,
                'goodTillTime' => '2023-11-07T05:31:56Z',
                'bestLimit' => true,
                'immediatelyExecutableLimit' => true,
                'ignorePriceValidityChecks' => true
        ]
    ],
    'crossType' => 'CROSS_TYPE_ALL_OR_NONE',
    'crossId' => '<string>'
  ]),
  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.prod.polymarketexchange.com/v1/trading/orders/cross"

	payload := strings.NewReader("{\n  \"requests\": [\n    {\n      \"orderQty\": \"<string>\",\n      \"symbol\": \"<string>\",\n      \"price\": \"<string>\",\n      \"clordId\": \"<string>\",\n      \"account\": \"<string>\",\n      \"stopPrice\": \"<string>\",\n      \"minQty\": \"<string>\",\n      \"selfMatchPreventionId\": \"<string>\",\n      \"quote\": \"<string>\",\n      \"allOrNone\": true,\n      \"sessionId\": \"<string>\",\n      \"user\": \"<string>\",\n      \"clientAccountId\": \"<string>\",\n      \"clientParticipantId\": \"<string>\",\n      \"participateDontInitiate\": true,\n      \"cashOrderQty\": \"<string>\",\n      \"strictLimit\": true,\n      \"goodTillTime\": \"2023-11-07T05:31:56Z\",\n      \"bestLimit\": true,\n      \"immediatelyExecutableLimit\": true,\n      \"ignorePriceValidityChecks\": true\n    }\n  ],\n  \"crossType\": \"CROSS_TYPE_ALL_OR_NONE\",\n  \"crossId\": \"<string>\"\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.prod.polymarketexchange.com/v1/trading/orders/cross")
  .header("Content-Type", "application/json")
  .body("{\n  \"requests\": [\n    {\n      \"orderQty\": \"<string>\",\n      \"symbol\": \"<string>\",\n      \"price\": \"<string>\",\n      \"clordId\": \"<string>\",\n      \"account\": \"<string>\",\n      \"stopPrice\": \"<string>\",\n      \"minQty\": \"<string>\",\n      \"selfMatchPreventionId\": \"<string>\",\n      \"quote\": \"<string>\",\n      \"allOrNone\": true,\n      \"sessionId\": \"<string>\",\n      \"user\": \"<string>\",\n      \"clientAccountId\": \"<string>\",\n      \"clientParticipantId\": \"<string>\",\n      \"participateDontInitiate\": true,\n      \"cashOrderQty\": \"<string>\",\n      \"strictLimit\": true,\n      \"goodTillTime\": \"2023-11-07T05:31:56Z\",\n      \"bestLimit\": true,\n      \"immediatelyExecutableLimit\": true,\n      \"ignorePriceValidityChecks\": true\n    }\n  ],\n  \"crossType\": \"CROSS_TYPE_ALL_OR_NONE\",\n  \"crossId\": \"<string>\"\n}")
  .asString();

require 'uri'
require 'net/http'

url = URI("https://api.prod.polymarketexchange.com/v1/trading/orders/cross")

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  \"requests\": [\n    {\n      \"orderQty\": \"<string>\",\n      \"symbol\": \"<string>\",\n      \"price\": \"<string>\",\n      \"clordId\": \"<string>\",\n      \"account\": \"<string>\",\n      \"stopPrice\": \"<string>\",\n      \"minQty\": \"<string>\",\n      \"selfMatchPreventionId\": \"<string>\",\n      \"quote\": \"<string>\",\n      \"allOrNone\": true,\n      \"sessionId\": \"<string>\",\n      \"user\": \"<string>\",\n      \"clientAccountId\": \"<string>\",\n      \"clientParticipantId\": \"<string>\",\n      \"participateDontInitiate\": true,\n      \"cashOrderQty\": \"<string>\",\n      \"strictLimit\": true,\n      \"goodTillTime\": \"2023-11-07T05:31:56Z\",\n      \"bestLimit\": true,\n      \"immediatelyExecutableLimit\": true,\n      \"ignorePriceValidityChecks\": true\n    }\n  ],\n  \"crossType\": \"CROSS_TYPE_ALL_OR_NONE\",\n  \"crossId\": \"<string>\"\n}"

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

{
  "responses": [
    {
      "orderId": "<string>"
    }
  ]
}