92 lines
2.6 KiB
PHP
92 lines
2.6 KiB
PHP
<?php
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/* For license terms, see /license.txt */
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require_once 'DeepSeekUrl.php';
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class DeepSeek
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{
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private $apiKey;
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private $headers;
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public function __construct(string $apiKey)
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{
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$this->apiKey = $apiKey;
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$this->headers = [
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'Content-Type: application/json',
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"Authorization: Bearer {$this->apiKey}",
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];
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}
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/**
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* Generate questions using the DeepSeek API.
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*
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* @param array $payload Data to send to the API
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*
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* @throws Exception If an error occurs during the request
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*
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* @return string Decoded response from the API
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*/
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public function generateQuestions(array $payload): string
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{
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$url = DeepSeekUrl::completionsUrl();
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$response = $this->sendRequest($url, 'POST', $payload);
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if (empty($response)) {
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throw new Exception('The DeepSeek API returned no response.');
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}
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$result = json_decode($response, true);
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// Validate errors returned by the API
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if (isset($result['error'])) {
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throw new Exception("DeepSeek API Error: {$result['error']['message']}");
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}
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// Ensure the response contains the expected "choices" field
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if (!isset($result['choices'][0]['message']['content'])) {
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throw new Exception('Unexpected response format from the DeepSeek API.');
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}
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return $result['choices'][0]['message']['content'];
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}
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/**
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* Send a request to the DeepSeek API.
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*
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* @param string $url Endpoint to send the request to
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* @param string $method HTTP method (e.g., GET, POST)
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* @param array $data Data to send as JSON
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*
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* @throws Exception If a cURL error occurs
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*
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* @return string Raw response from the API
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*/
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private function sendRequest(string $url, string $method, array $data = []): string
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{
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$ch = curl_init($url);
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curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
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curl_setopt($ch, CURLOPT_CUSTOMREQUEST, $method);
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curl_setopt($ch, CURLOPT_POSTFIELDS, json_encode($data));
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curl_setopt($ch, CURLOPT_HTTPHEADER, $this->headers);
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$response = curl_exec($ch);
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$httpCode = curl_getinfo($ch, CURLINFO_HTTP_CODE);
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if (curl_errno($ch)) {
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$errorMessage = curl_error($ch);
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curl_close($ch);
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throw new Exception("cURL Error: {$errorMessage}");
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}
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curl_close($ch);
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// Validate HTTP status codes
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if ($httpCode < 200 || $httpCode >= 300) {
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throw new Exception("Request to DeepSeek failed with HTTP status code: {$httpCode}");
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}
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return $response;
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}
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}
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