How can I post file to gpt4o api

API
1

function send_message_with_image($api_key, $thread_id, $role, $content, $image_path) {
$url = “https://api.openai.com/v1/threads/{$thread_id}/messages”;

// Başlıklar (Authorization ve Content-Type multipart/form-data olacak)
$headers = [
    "Authorization: Bearer $api_key",
    "OpenAI-Beta: assistants=v2"
];

// POST verilerini hazırlamak için CURL dosyası oluşturuluyor
$post_data = [
    'role' => $role,
    'content' => $content,
    'image' => new CURLFile($image_path)
];

// cURL oturumunu başlat
$ch = curl_init($url);
curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
curl_setopt($ch, CURLOPT_HTTPHEADER, $headers);
curl_setopt($ch, CURLOPT_POST, true);
curl_setopt($ch, CURLOPT_POSTFIELDS, $post_data); // Metin ve resim gönderimi
$response = curl_exec($ch);
curl_close($ch);

// API'den dönen cevabı işleyip döndür
return json_decode($response, true);

} is this code right ? i cant send to image.

2

That code is not right. Not even in the ballpark.

This linked code below is, showing how to employ a file that has been uploaded to the files endpoint as a file id in a thread message in the Assistants endpoint.

3

{
“role”:“user”,
“content”:[
{
“type”: “text”,
“text”: “naber”
},
{
“type”: “image_file”,
“image_file”: “file-<file_id>”
}
]
}
when ı run this code with this param, i take this err

{
“error”: {
“message”: “Invalid type for ‘content[1].image_file’: expected an object, but got a string instead.”,
“type”: “invalid_request_error”,
“param”: “content[1].image_file”,
“code”: “invalid_type”
}
}