Hello everyone,
I’m currently working on a project involving the OpenAI Assistants v2 API, and I’m encountering issues since the switch from v1 to v2. My task is relatively straightforward:
- Upload a file (PDF).
- Run an assistant that applies a prompt to analyze the file.
- Extract structured data from the file and generate a PDF report with the results.
Here’s my current situation:
I’ve successfully implemented the file upload step.
I’m trying to create a vector store to enable the file_search tool in my assistant, but I’m encountering errors related to the API endpoint. Specifically, I receive the following response:
"Failed to create vector store: Unknown request URL: POST /v1/vector-stores. Please check the URL for typos, or see the docs at https://platform.openai.com/docs/api-reference/."
I’ve ensured the following:
- I’m using the correct URL (
https://api.openai.com/v1/vector-stores) as per the documentation. - I’ve included the required headers (
OpenAI-Beta: assistants=v2). - My API key is correctly set and works for other endpoints.
// Step 1: Upload the file
$ch = curl_init("$baseUrl/files");
$postFields = [
'purpose' => 'assistants',
'file' => new CURLFile($tempFile, $mimeType, "document.$fileExtension")
];
curl_setopt_array($ch, [
CURLOPT_RETURNTRANSFER => true,
CURLOPT_POST => true,
CURLOPT_POSTFIELDS => $postFields,
CURLOPT_HTTPHEADER => [
"Authorization: Bearer $apiKey",
"OpenAI-Beta: assistants=v2"
]
]);
$uploadResponse = curl_exec($ch);
$httpCode = curl_getinfo($ch, CURLINFO_HTTP_CODE);
curl_close($ch);
unlink($tempFile); // Delete temporary file
$uploadResult = json_decode($uploadResponse, true);
if ($httpCode !== 200 || !isset($uploadResult['id'])) {
$errorMessage = $uploadResult['error']['message'] ?? 'Unknown error occurred';
$this->sendError(ERROR_CANNOT_EXECUTE, "Failed to upload file: $errorMessage");
return;
}
$fileId = $uploadResult['id'];
// Step 2: Create a vector store for file_search
$ch = curl_init("https://api.openai.com/v1/vector-stores");
$vectorStoreData = json_encode([
'files' => [$fileId], // Associe le fichier uploadé au vector store
'purpose' => 'file_search',
]);
curl_setopt_array($ch, [
CURLOPT_RETURNTRANSFER => true,
CURLOPT_POST => true,
CURLOPT_POSTFIELDS => $vectorStoreData,
CURLOPT_HTTPHEADER => [
"Authorization: Bearer $apiKey",
"Content-Type: application/json",
"OpenAI-Beta: assistants=v2",
]
]);
$vectorStoreResponse = curl_exec($ch);
$httpCode = curl_getinfo($ch, CURLINFO_HTTP_CODE);
curl_close($ch);
$vectorStoreResult = json_decode($vectorStoreResponse, true);
if ($httpCode !== 200 || !isset($vectorStoreResult['id'])) {
$errorMessage = $vectorStoreResult['error']['message'] ?? 'Unknown error occurred';
$this->sendError(ERROR_CANNOT_EXECUTE, "Failed to create vector store: $errorMessage");
return;
}
$vectorStoreId = $vectorStoreResult['id']; // ID du vector store pour file_search
// Step 3: Create an assistant
$ch = curl_init("https://api.openai.com/v1/assistants");
$assistantData = json_encode([
'model' => 'gpt-4-turbo', // Modèle utilisé
'name' => 'Document Analyzer', // Nom de l'assistant
'instructions' => 'You are an AI assistant that analyzes documents.', // Instructions pour l'assistant
'tools' => [
['type' => 'file_search'] // Déclare l'outil file_search
],
'tool_resources' => [ // Associe les ressources au file_search
'file_search' => [
'vector_store_ids' => [$vectorStoreId] // Utilise l'ID du vector store créé
]
]
]);
curl_setopt_array($ch, [
CURLOPT_RETURNTRANSFER => true,
CURLOPT_POST => true,
CURLOPT_POSTFIELDS => $assistantData,
CURLOPT_HTTPHEADER => [
"Authorization: Bearer $apiKey",
"Content-Type: application/json",
"OpenAI-Beta: assistants=v2"
]
]);
$assistantResponse = curl_exec($ch);
$httpCode = curl_getinfo($ch, CURLINFO_HTTP_CODE);
curl_close($ch);
$assistantResult = json_decode($assistantResponse, true);
if ($httpCode !== 200 || !isset($assistantResult['id'])) {
$errorMessage = $assistantResult['error']['message'] ?? 'Unknown error occurred';
$this->sendError(ERROR_CANNOT_EXECUTE, "Failed to create assistant: $errorMessage");
return;
}
$assistantId = $assistantResult['id']; // ID de l'assistant créé
// Step 4: Create a thread
$ch = curl_init("https://api.openai.com/v1/threads");
curl_setopt_array($ch, [
CURLOPT_RETURNTRANSFER => true,
CURLOPT_POST => true,
CURLOPT_POSTFIELDS => json_encode([]), // Pas besoin de paramètres pour cette étape
CURLOPT_HTTPHEADER => [
"Authorization: Bearer $apiKey",
"Content-Type: application/json",
"OpenAI-Beta: assistants=v2"
]
]);
$threadResponse = curl_exec($ch);
$httpCode = curl_getinfo($ch, CURLINFO_HTTP_CODE);
curl_close($ch);
$threadResult = json_decode($threadResponse, true);
if ($httpCode !== 200 || !isset($threadResult['id'])) {
$errorMessage = $threadResult['error']['message'] ?? 'Unknown error occurred';
$this->sendError(ERROR_CANNOT_EXECUTE, "Failed to create thread: $errorMessage");
return;
}
$threadId = $threadResult['id']; // ID du thread créé
// Step 5: Add a message to the thread (avec fichier comme attachement)
$ch = curl_init("$baseUrl/threads/$threadId/messages");
$messageData = json_encode([
'role' => 'user',
'content' => $prompt,
'attachments' => [
[
'file_id' => $fileId,
'tools' => [['type' => 'file_search']]
]
]
]);
curl_setopt_array($ch, [
CURLOPT_RETURNTRANSFER => true,
CURLOPT_POST => true,
CURLOPT_POSTFIELDS => $messageData,
CURLOPT_HTTPHEADER => [
"Authorization: Bearer $apiKey",
"Content-Type: application/json",
"OpenAI-Beta: assistants=v2"
]
]);
$messageResponse = curl_exec($ch);
$httpCode = curl_getinfo($ch, CURLINFO_HTTP_CODE);
curl_close($ch);
if ($httpCode !== 200) {
$error = json_decode($messageResponse, true);
$errorMessage = $error['error']['message'] ?? 'Unknown error occurred';
$this->sendError(ERROR_CANNOT_EXECUTE, "Failed to add message: $errorMessage");
return;
}
// Step 6: Run the assistant
$ch = curl_init("https://api.openai.com/v1/threads/$threadId/runs");
$runData = json_encode(['assistant_id' => $assistantId]);
curl_setopt_array($ch, [
CURLOPT_RETURNTRANSFER => true,
CURLOPT_POST => true,
CURLOPT_POSTFIELDS => $runData,
CURLOPT_HTTPHEADER => [
"Authorization: Bearer $apiKey",
"Content-Type: application/json",
"OpenAI-Beta: assistants=v2"
]
]);
$runResponse = curl_exec($ch);
$httpCode = curl_getinfo($ch, CURLINFO_HTTP_CODE);
curl_close($ch);
$runResult = json_decode($runResponse, true);
if ($httpCode !== 200 || !isset($runResult['id'])) {
$errorMessage = $runResult['error']['message'] ?? 'Unknown error occurred';
$this->sendError(ERROR_CANNOT_EXECUTE, "Failed to run assistant: $errorMessage");
return;
}
$runId = $runResult['id'];
// Step 7: Wait for the run to complete
do {
sleep(5); // Wait for 5 seconds before checking again
$ch = curl_init("https://api.openai.com/v1/threads/$threadId/runs/$runId");
curl_setopt_array($ch, [
CURLOPT_RETURNTRANSFER => true,
CURLOPT_HTTPHEADER => [
"Authorization: Bearer $apiKey",
"OpenAI-Beta: assistants=v2"
]
]);
$statusResponse = curl_exec($ch);
$httpCode = curl_getinfo($ch, CURLINFO_HTTP_CODE);
curl_close($ch);
if ($httpCode !== 200) {
$error = json_decode($statusResponse, true);
$errorMessage = $error['error']['message'] ?? 'Unknown error occurred';
$this->sendError(ERROR_CANNOT_EXECUTE, "Failed to check run status: $errorMessage");
return;
}
$statusResult = json_decode($statusResponse, true);
} while ($statusResult['status'] === 'in_progress');
// Step 8: Retrieve the assistant's response
$ch = curl_init("https://api.openai.com/v1/threads/$threadId/messages");
curl_setopt_array($ch, [
CURLOPT_RETURNTRANSFER => true,
CURLOPT_HTTPHEADER => [
"Authorization: Bearer $apiKey",
"OpenAI-Beta: assistants=v2"
]
]);
$messagesResponse = curl_exec($ch);
$httpCode = curl_getinfo($ch, CURLINFO_HTTP_CODE);
curl_close($ch);
if ($httpCode !== 200) {
$error = json_decode($messagesResponse, true);
$errorMessage = $error['error']['message'] ?? 'Unknown error occurred';
$this->sendError(ERROR_CANNOT_EXECUTE, "Failed to retrieve messages: $errorMessage");
return;
}
$messagesResult = json_decode($messagesResponse, true);
$assistantReply = $messagesResult['data'][0]['content'][0]['text']['value'] ?? '';
return $assistantReply;
}
That code always end with this error : “Failed to create vector store: Unknown request URL: POST /v1/vector-stores. Please check the URL for typos, or see the docs at https://platform.openai.com/docs/api-reference/.”
Is there anything else I might be missing in my implementation or API setup?
Any guidance would be greatly appreciated. Thank you in advance!