site url : https://example.com/api/threads
Header
XF-Api-Key : api anahtarı
json content
{
  "node_id": 5,
  "title": "Test thread",
  "message": "Test thread"
}

{
  "errors": [
    {
      "code": "required_input_missing",
      "message": "Gerekli giriş eksik: node_id, title, message",
      "params": {
        "missing": [
          "node_id",
          "title",
          "message"
        ]
      }
    }
  ]
}

import requests
headers = {
    'Content-type': 'application/x-www-form-urlencoded',
    'XF-Api-Key': 'api_key'
}
# Gönderilecek veriler
post_data = {
    'node_id': 5,
    'title': 'Python Test Konu Başlığı',
    'message': 'Test Konu İçeriği'
}
# example.com site adresinizi girin.
url = 'https://example.com/api/threads/'
response = requests.post(url, headers=headers, data=post_data)
print(response.text)

<?php
$headers = array(
   'Content-type: application/x-www-form-urlencoded',
   'XF-Api-Key: apikey'
);

$post = [
    'node_id' => 5,
    'title' => 'Test Konu Başlığı',
    'message' => 'Test Konu İçeriği',
];

$post = http_build_query($post);
// example.com site adresinizi girin.
$url = 'https://example.com/api/threads/';

$ch = curl_init();
curl_setopt($ch, CURLOPT_HTTPHEADER, $headers);
curl_setopt($ch, CURLOPT_URL, $url);
curl_setopt($ch, CURLOPT_POST, true);
curl_setopt($ch, CURLOPT_POSTFIELDS, $post);
curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
curl_setopt($ch, CURLOPT_CUSTOMREQUEST,'POST');
$json = curl_exec($ch);
curl_close($ch);
echo $json;