curl --request POST \
  --url https://{yourDomain}/api/service/webhook-event/checkout_session_expired \
  --header 'Content-Type: application/json' \
  --data '
{
  "id": "<string>",
  "type": "checkout_session_expired",
  "date": "<string>",
  "payload": {
    "id": "<string>",
    "price": {
      "total": 1.01,
      "subTotal": 123,
      "shipping": 123,
      "totalNet": 123,
      "vat": 123
    },
    "appId": "<string>",
    "merchantAppId": "<string>",
    "merchant": {
      "id": "<string>",
      "appId": "<string>",
      "legalName": "<string>"
    },
    "lineItems": [
      {
        "name": "<string>",
        "singleNet": 123,
        "singleVat": 123,
        "amount": 123,
        "referenceId": "<string>",
        "quantity": 1,
        "image": "<string>",
        "EAN": "<string>",
        "co2Grams": 1
      }
    ],
    "expiresAt": 123,
    "created": 123,
    "referenceId": "<string>",
    "displayId": "<string>",
    "redirectUrl": "<string>",
    "successCallbackUrl": "<string>",
    "errorCallbackUrl": "<string>",
    "availableMarkets": [],
    "express": true,
    "handshake": true,
    "guest": true,
    "disableBankSelection": true,
    "plugin": "<string>",
    "offsetProject": "<string>",
    "impactOffsetProjects": [
      "<string>"
    ],
    "shopLogo": "<string>",
    "shopName": "<string>",
    "incentiveMode": "<string>",
    "shippingMethods": [
      "<unknown>"
    ],
    "selectedShippingMethodId": "<string>",
    "metadata": {},
    "category": "<string>",
    "abortReason": "<string>",
    "quoteCallbackUrl": "<string>",
    "completeCallbackUrl": "<string>",
    "createdAt": "<unknown>",
    "updatedAt": "<unknown>",
    "subaccountId": "<string>"
  }
}
'

import requests

url = "https://{yourDomain}/api/service/webhook-event/checkout_session_expired"

payload = {
    "id": "<string>",
    "type": "checkout_session_expired",
    "date": "<string>",
    "payload": {
        "id": "<string>",
        "price": {
            "total": 1.01,
            "subTotal": 123,
            "shipping": 123,
            "totalNet": 123,
            "vat": 123
        },
        "appId": "<string>",
        "merchantAppId": "<string>",
        "merchant": {
            "id": "<string>",
            "appId": "<string>",
            "legalName": "<string>"
        },
        "lineItems": [
            {
                "name": "<string>",
                "singleNet": 123,
                "singleVat": 123,
                "amount": 123,
                "referenceId": "<string>",
                "quantity": 1,
                "image": "<string>",
                "EAN": "<string>",
                "co2Grams": 1
            }
        ],
        "expiresAt": 123,
        "created": 123,
        "referenceId": "<string>",
        "displayId": "<string>",
        "redirectUrl": "<string>",
        "successCallbackUrl": "<string>",
        "errorCallbackUrl": "<string>",
        "availableMarkets": [],
        "express": True,
        "handshake": True,
        "guest": True,
        "disableBankSelection": True,
        "plugin": "<string>",
        "offsetProject": "<string>",
        "impactOffsetProjects": ["<string>"],
        "shopLogo": "<string>",
        "shopName": "<string>",
        "incentiveMode": "<string>",
        "shippingMethods": ["<unknown>"],
        "selectedShippingMethodId": "<string>",
        "metadata": {},
        "category": "<string>",
        "abortReason": "<string>",
        "quoteCallbackUrl": "<string>",
        "completeCallbackUrl": "<string>",
        "createdAt": "<unknown>",
        "updatedAt": "<unknown>",
        "subaccountId": "<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({
    id: '<string>',
    type: 'checkout_session_expired',
    date: '<string>',
    payload: {
      id: '<string>',
      price: {total: 1.01, subTotal: 123, shipping: 123, totalNet: 123, vat: 123},
      appId: '<string>',
      merchantAppId: '<string>',
      merchant: {id: '<string>', appId: '<string>', legalName: '<string>'},
      lineItems: [
        {
          name: '<string>',
          singleNet: 123,
          singleVat: 123,
          amount: 123,
          referenceId: '<string>',
          quantity: 1,
          image: '<string>',
          EAN: '<string>',
          co2Grams: 1
        }
      ],
      expiresAt: 123,
      created: 123,
      referenceId: '<string>',
      displayId: '<string>',
      redirectUrl: '<string>',
      successCallbackUrl: '<string>',
      errorCallbackUrl: '<string>',
      availableMarkets: [],
      express: true,
      handshake: true,
      guest: true,
      disableBankSelection: true,
      plugin: '<string>',
      offsetProject: '<string>',
      impactOffsetProjects: ['<string>'],
      shopLogo: '<string>',
      shopName: '<string>',
      incentiveMode: '<string>',
      shippingMethods: ['<unknown>'],
      selectedShippingMethodId: '<string>',
      metadata: {},
      category: '<string>',
      abortReason: '<string>',
      quoteCallbackUrl: '<string>',
      completeCallbackUrl: '<string>',
      createdAt: '<unknown>',
      updatedAt: '<unknown>',
      subaccountId: '<string>'
    }
  })
};

fetch('https://{yourDomain}/api/service/webhook-event/checkout_session_expired', 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://{yourDomain}/api/service/webhook-event/checkout_session_expired",
  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([
    'id' => '<string>',
    'type' => 'checkout_session_expired',
    'date' => '<string>',
    'payload' => [
        'id' => '<string>',
        'price' => [
                'total' => 1.01,
                'subTotal' => 123,
                'shipping' => 123,
                'totalNet' => 123,
                'vat' => 123
        ],
        'appId' => '<string>',
        'merchantAppId' => '<string>',
        'merchant' => [
                'id' => '<string>',
                'appId' => '<string>',
                'legalName' => '<string>'
        ],
        'lineItems' => [
                [
                                'name' => '<string>',
                                'singleNet' => 123,
                                'singleVat' => 123,
                                'amount' => 123,
                                'referenceId' => '<string>',
                                'quantity' => 1,
                                'image' => '<string>',
                                'EAN' => '<string>',
                                'co2Grams' => 1
                ]
        ],
        'expiresAt' => 123,
        'created' => 123,
        'referenceId' => '<string>',
        'displayId' => '<string>',
        'redirectUrl' => '<string>',
        'successCallbackUrl' => '<string>',
        'errorCallbackUrl' => '<string>',
        'availableMarkets' => [
                
        ],
        'express' => true,
        'handshake' => true,
        'guest' => true,
        'disableBankSelection' => true,
        'plugin' => '<string>',
        'offsetProject' => '<string>',
        'impactOffsetProjects' => [
                '<string>'
        ],
        'shopLogo' => '<string>',
        'shopName' => '<string>',
        'incentiveMode' => '<string>',
        'shippingMethods' => [
                '<unknown>'
        ],
        'selectedShippingMethodId' => '<string>',
        'metadata' => [
                
        ],
        'category' => '<string>',
        'abortReason' => '<string>',
        'quoteCallbackUrl' => '<string>',
        'completeCallbackUrl' => '<string>',
        'createdAt' => '<unknown>',
        'updatedAt' => '<unknown>',
        'subaccountId' => '<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://{yourDomain}/api/service/webhook-event/checkout_session_expired"

	payload := strings.NewReader("{\n  \"id\": \"<string>\",\n  \"type\": \"checkout_session_expired\",\n  \"date\": \"<string>\",\n  \"payload\": {\n    \"id\": \"<string>\",\n    \"price\": {\n      \"total\": 1.01,\n      \"subTotal\": 123,\n      \"shipping\": 123,\n      \"totalNet\": 123,\n      \"vat\": 123\n    },\n    \"appId\": \"<string>\",\n    \"merchantAppId\": \"<string>\",\n    \"merchant\": {\n      \"id\": \"<string>\",\n      \"appId\": \"<string>\",\n      \"legalName\": \"<string>\"\n    },\n    \"lineItems\": [\n      {\n        \"name\": \"<string>\",\n        \"singleNet\": 123,\n        \"singleVat\": 123,\n        \"amount\": 123,\n        \"referenceId\": \"<string>\",\n        \"quantity\": 1,\n        \"image\": \"<string>\",\n        \"EAN\": \"<string>\",\n        \"co2Grams\": 1\n      }\n    ],\n    \"expiresAt\": 123,\n    \"created\": 123,\n    \"referenceId\": \"<string>\",\n    \"displayId\": \"<string>\",\n    \"redirectUrl\": \"<string>\",\n    \"successCallbackUrl\": \"<string>\",\n    \"errorCallbackUrl\": \"<string>\",\n    \"availableMarkets\": [],\n    \"express\": true,\n    \"handshake\": true,\n    \"guest\": true,\n    \"disableBankSelection\": true,\n    \"plugin\": \"<string>\",\n    \"offsetProject\": \"<string>\",\n    \"impactOffsetProjects\": [\n      \"<string>\"\n    ],\n    \"shopLogo\": \"<string>\",\n    \"shopName\": \"<string>\",\n    \"incentiveMode\": \"<string>\",\n    \"shippingMethods\": [\n      \"<unknown>\"\n    ],\n    \"selectedShippingMethodId\": \"<string>\",\n    \"metadata\": {},\n    \"category\": \"<string>\",\n    \"abortReason\": \"<string>\",\n    \"quoteCallbackUrl\": \"<string>\",\n    \"completeCallbackUrl\": \"<string>\",\n    \"createdAt\": \"<unknown>\",\n    \"updatedAt\": \"<unknown>\",\n    \"subaccountId\": \"<string>\"\n  }\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://{yourDomain}/api/service/webhook-event/checkout_session_expired")
  .header("Content-Type", "application/json")
  .body("{\n  \"id\": \"<string>\",\n  \"type\": \"checkout_session_expired\",\n  \"date\": \"<string>\",\n  \"payload\": {\n    \"id\": \"<string>\",\n    \"price\": {\n      \"total\": 1.01,\n      \"subTotal\": 123,\n      \"shipping\": 123,\n      \"totalNet\": 123,\n      \"vat\": 123\n    },\n    \"appId\": \"<string>\",\n    \"merchantAppId\": \"<string>\",\n    \"merchant\": {\n      \"id\": \"<string>\",\n      \"appId\": \"<string>\",\n      \"legalName\": \"<string>\"\n    },\n    \"lineItems\": [\n      {\n        \"name\": \"<string>\",\n        \"singleNet\": 123,\n        \"singleVat\": 123,\n        \"amount\": 123,\n        \"referenceId\": \"<string>\",\n        \"quantity\": 1,\n        \"image\": \"<string>\",\n        \"EAN\": \"<string>\",\n        \"co2Grams\": 1\n      }\n    ],\n    \"expiresAt\": 123,\n    \"created\": 123,\n    \"referenceId\": \"<string>\",\n    \"displayId\": \"<string>\",\n    \"redirectUrl\": \"<string>\",\n    \"successCallbackUrl\": \"<string>\",\n    \"errorCallbackUrl\": \"<string>\",\n    \"availableMarkets\": [],\n    \"express\": true,\n    \"handshake\": true,\n    \"guest\": true,\n    \"disableBankSelection\": true,\n    \"plugin\": \"<string>\",\n    \"offsetProject\": \"<string>\",\n    \"impactOffsetProjects\": [\n      \"<string>\"\n    ],\n    \"shopLogo\": \"<string>\",\n    \"shopName\": \"<string>\",\n    \"incentiveMode\": \"<string>\",\n    \"shippingMethods\": [\n      \"<unknown>\"\n    ],\n    \"selectedShippingMethodId\": \"<string>\",\n    \"metadata\": {},\n    \"category\": \"<string>\",\n    \"abortReason\": \"<string>\",\n    \"quoteCallbackUrl\": \"<string>\",\n    \"completeCallbackUrl\": \"<string>\",\n    \"createdAt\": \"<unknown>\",\n    \"updatedAt\": \"<unknown>\",\n    \"subaccountId\": \"<string>\"\n  }\n}")
  .asString();

require 'uri'
require 'net/http'

url = URI("https://{yourDomain}/api/service/webhook-event/checkout_session_expired")

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  \"id\": \"<string>\",\n  \"type\": \"checkout_session_expired\",\n  \"date\": \"<string>\",\n  \"payload\": {\n    \"id\": \"<string>\",\n    \"price\": {\n      \"total\": 1.01,\n      \"subTotal\": 123,\n      \"shipping\": 123,\n      \"totalNet\": 123,\n      \"vat\": 123\n    },\n    \"appId\": \"<string>\",\n    \"merchantAppId\": \"<string>\",\n    \"merchant\": {\n      \"id\": \"<string>\",\n      \"appId\": \"<string>\",\n      \"legalName\": \"<string>\"\n    },\n    \"lineItems\": [\n      {\n        \"name\": \"<string>\",\n        \"singleNet\": 123,\n        \"singleVat\": 123,\n        \"amount\": 123,\n        \"referenceId\": \"<string>\",\n        \"quantity\": 1,\n        \"image\": \"<string>\",\n        \"EAN\": \"<string>\",\n        \"co2Grams\": 1\n      }\n    ],\n    \"expiresAt\": 123,\n    \"created\": 123,\n    \"referenceId\": \"<string>\",\n    \"displayId\": \"<string>\",\n    \"redirectUrl\": \"<string>\",\n    \"successCallbackUrl\": \"<string>\",\n    \"errorCallbackUrl\": \"<string>\",\n    \"availableMarkets\": [],\n    \"express\": true,\n    \"handshake\": true,\n    \"guest\": true,\n    \"disableBankSelection\": true,\n    \"plugin\": \"<string>\",\n    \"offsetProject\": \"<string>\",\n    \"impactOffsetProjects\": [\n      \"<string>\"\n    ],\n    \"shopLogo\": \"<string>\",\n    \"shopName\": \"<string>\",\n    \"incentiveMode\": \"<string>\",\n    \"shippingMethods\": [\n      \"<unknown>\"\n    ],\n    \"selectedShippingMethodId\": \"<string>\",\n    \"metadata\": {},\n    \"category\": \"<string>\",\n    \"abortReason\": \"<string>\",\n    \"quoteCallbackUrl\": \"<string>\",\n    \"completeCallbackUrl\": \"<string>\",\n    \"createdAt\": \"<unknown>\",\n    \"updatedAt\": \"<unknown>\",\n    \"subaccountId\": \"<string>\"\n  }\n}"

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