curl --request POST \
  --url https://{environment}.plugsurfing.com/emp/v1/orders/{orderId}/assign \
  --header 'Content-Type: application/json' \
  --header 'X-API-Key: <api-key>' \
  --data '
{
  "keyIdentifier": "0462D53C8ABAC0",
  "referenceId": "1234567890123456"
}
'

import requests

url = "https://{environment}.plugsurfing.com/emp/v1/orders/{orderId}/assign"

payload = {
    "keyIdentifier": "0462D53C8ABAC0",
    "referenceId": "1234567890123456"
}
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({keyIdentifier: '0462D53C8ABAC0', referenceId: '1234567890123456'})
};

fetch('https://{environment}.plugsurfing.com/emp/v1/orders/{orderId}/assign', 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://{environment}.plugsurfing.com/emp/v1/orders/{orderId}/assign",
  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([
    'keyIdentifier' => '0462D53C8ABAC0',
    'referenceId' => '1234567890123456'
  ]),
  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://{environment}.plugsurfing.com/emp/v1/orders/{orderId}/assign"

	payload := strings.NewReader("{\n  \"keyIdentifier\": \"0462D53C8ABAC0\",\n  \"referenceId\": \"1234567890123456\"\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://{environment}.plugsurfing.com/emp/v1/orders/{orderId}/assign")
  .header("X-API-Key", "<api-key>")
  .header("Content-Type", "application/json")
  .body("{\n  \"keyIdentifier\": \"0462D53C8ABAC0\",\n  \"referenceId\": \"1234567890123456\"\n}")
  .asString();

require 'uri'
require 'net/http'

url = URI("https://{environment}.plugsurfing.com/emp/v1/orders/{orderId}/assign")

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  \"keyIdentifier\": \"0462D53C8ABAC0\",\n  \"referenceId\": \"1234567890123456\"\n}"

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

{
  "id": "aYnky297eG",
  "address": {
    "country": "Austria",
    "additionalInformation": "test test",
    "firstName": "Frans",
    "lastName": "Anderson",
    "city": "Wistful Vista",
    "postalCode": "85960",
    "companyName": "Low area Corp.",
    "addressLine1": "First Way 261b",
    "addressLine2": "Suite 9"
  },
  "quantity": 1,
  "language": "en",
  "product": {
    "id": "Am07b6Q7JZ"
  },
  "created": "2023-06-26T10:00:00Z",
  "organizationId": "JoEl1xoP7r",
  "status": "ORDER_PAID",
  "updated": "2023-06-26T12:00:00Z"
}

{
  "message": "Missing or invalid card details."
}

{
  "message": "Resource not found"
}

{
  "message": "Card details conflict with an existing assignment."
}

{
  "message": "An unexpected error occurred."
}