curl --request POST \
  --url https://api.contracting.kukkingu.software/api/v1/webhooks/{endpointKey} \
  --header 'Authorization: Bearer <token>' \
  --header 'Content-Type: application/json' \
  --header 'x-atlassian-webhook-identifier: <x-atlassian-webhook-identifier>' \
  --data '
{
  "timestamp": 0,
  "matchedWebhookIds": [
    0
  ],
  "issue": {
    "id": "<string>",
    "key": "<string>",
    "fields": {
      "project": {
        "key": "<string>"
      }
    }
  }
}
'

import requests

url = "https://api.contracting.kukkingu.software/api/v1/webhooks/{endpointKey}"

payload = {
    "timestamp": 0,
    "matchedWebhookIds": [0],
    "issue": {
        "id": "<string>",
        "key": "<string>",
        "fields": { "project": { "key": "<string>" } }
    }
}
headers = {
    "x-atlassian-webhook-identifier": "<x-atlassian-webhook-identifier>",
    "Authorization": "Bearer <token>",
    "Content-Type": "application/json"
}

response = requests.post(url, json=payload, headers=headers)

print(response.text)

const options = {
  method: 'POST',
  headers: {
    'x-atlassian-webhook-identifier': '<x-atlassian-webhook-identifier>',
    Authorization: 'Bearer <token>',
    'Content-Type': 'application/json'
  },
  body: JSON.stringify({
    timestamp: 0,
    matchedWebhookIds: [0],
    issue: {id: '<string>', key: '<string>', fields: {project: {key: '<string>'}}}
  })
};

fetch('https://api.contracting.kukkingu.software/api/v1/webhooks/{endpointKey}', 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.contracting.kukkingu.software/api/v1/webhooks/{endpointKey}",
  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([
    'timestamp' => 0,
    'matchedWebhookIds' => [
        0
    ],
    'issue' => [
        'id' => '<string>',
        'key' => '<string>',
        'fields' => [
                'project' => [
                                'key' => '<string>'
                ]
        ]
    ]
  ]),
  CURLOPT_HTTPHEADER => [
    "Authorization: Bearer <token>",
    "Content-Type: application/json",
    "x-atlassian-webhook-identifier: <x-atlassian-webhook-identifier>"
  ],
]);

$response = curl_exec($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.contracting.kukkingu.software/api/v1/webhooks/{endpointKey}"

	payload := strings.NewReader("{\n  \"timestamp\": 0,\n  \"matchedWebhookIds\": [\n    0\n  ],\n  \"issue\": {\n    \"id\": \"<string>\",\n    \"key\": \"<string>\",\n    \"fields\": {\n      \"project\": {\n        \"key\": \"<string>\"\n      }\n    }\n  }\n}")

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

	req.Header.Add("x-atlassian-webhook-identifier", "<x-atlassian-webhook-identifier>")
	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.contracting.kukkingu.software/api/v1/webhooks/{endpointKey}")
  .header("x-atlassian-webhook-identifier", "<x-atlassian-webhook-identifier>")
  .header("Authorization", "Bearer <token>")
  .header("Content-Type", "application/json")
  .body("{\n  \"timestamp\": 0,\n  \"matchedWebhookIds\": [\n    0\n  ],\n  \"issue\": {\n    \"id\": \"<string>\",\n    \"key\": \"<string>\",\n    \"fields\": {\n      \"project\": {\n        \"key\": \"<string>\"\n      }\n    }\n  }\n}")
  .asString();

require 'uri'
require 'net/http'

url = URI("https://api.contracting.kukkingu.software/api/v1/webhooks/{endpointKey}")

http = Net::HTTP.new(url.host, url.port)
http.use_ssl = true

request = Net::HTTP::Post.new(url)
request["x-atlassian-webhook-identifier"] = '<x-atlassian-webhook-identifier>'
request["Authorization"] = 'Bearer <token>'
request["Content-Type"] = 'application/json'
request.body = "{\n  \"timestamp\": 0,\n  \"matchedWebhookIds\": [\n    0\n  ],\n  \"issue\": {\n    \"id\": \"<string>\",\n    \"key\": \"<string>\",\n    \"fields\": {\n      \"project\": {\n        \"key\": \"<string>\"\n      }\n    }\n  }\n}"

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

{
  "data": {
    "accepted": true
  }
}

{
  "error": "ValidationError",
  "message": "<string>",
  "details": [
    {
      "field": "<string>",
      "message": "<string>",
      "constraint": "<string>"
    }
  ]
}

{
  "error": "Unauthorized",
  "message": "Unauthorized"
}

{
  "error": "NotFound",
  "message": "Not Found"
}