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<?php |
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namespace Tgallice\Wit; |
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use Tgallice\Wit\HttpClient\GuzzleHttpClient; |
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use Tgallice\Wit\HttpClient\HttpClient; |
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use Psr\Http\Message\ResponseInterface; |
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use Tgallice\Wit\Exception\BadResponseException; |
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class Client |
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{ |
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/** |
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* API base uri |
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*/ |
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const API_BASE_URI = 'https://api.wit.ai/'; |
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/* |
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* API Version |
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*/ |
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const DEFAULT_API_VERSION = '20160526'; |
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/** |
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* Request default timeout |
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*/ |
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const DEFAULT_TIMEOUT = 5; |
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/** |
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* @var array |
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*/ |
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public static $allowedMethod = ['POST', 'GET', 'PUT', 'DELETE']; |
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/** |
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* @var string Wit app token |
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*/ |
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private $accessToken; |
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/** |
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* @var string |
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*/ |
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private $apiVersion; |
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/** |
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* @var HttpClient client |
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*/ |
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private $client; |
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/** |
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* @var ResponseInterface|null |
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*/ |
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private $lastResponse; |
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public function __construct($accessToken, HttpClient $httpClient = null, $apiVersion = self::DEFAULT_API_VERSION) |
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{ |
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$this->accessToken = $accessToken; |
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$this->apiVersion = $apiVersion; |
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$this->client = $httpClient ?: $this->defaultHttpClient(); |
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} |
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/** |
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* @param string $uri |
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* @param array $params |
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* |
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* @return ResponseInterface |
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*/ |
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public function post($uri, array $params = []) |
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{ |
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return $this->send('POST', $uri, $params); |
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} |
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/** |
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* @param string $uri |
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* @param array $params |
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* |
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* @return ResponseInterface |
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*/ |
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public function get($uri, array $params = []) |
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{ |
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return $this->send('GET', $uri, null, $params); |
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} |
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/** |
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* @param string $uri |
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* @param array $params |
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* |
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* @return ResponseInterface |
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*/ |
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public function put($uri, array $params = []) |
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{ |
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return $this->send('PUT', $uri, $params); |
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} |
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/** |
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* @param string $uri |
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* |
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* @return ResponseInterface |
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*/ |
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public function delete($uri) |
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{ |
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return $this->send('DELETE', $uri); |
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} |
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/** |
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* @param string $method |
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* @param string $uri |
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* @param mixed $body |
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* @param array $query |
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* @param array $headers |
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* @param array $options |
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* |
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* @return ResponseInterface |
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*/ |
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public function send($method, $uri, $body = null, array $query = [], array $headers = [], array $options = []) |
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{ |
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$this->validateMethod($method); |
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$headers = array_merge($this->getDefaultHeaders(), $headers); |
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$this->lastResponse = $this->client->send($method, $uri, $body, $query, $headers, $options); |
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$this->validateResponse($this->lastResponse); |
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return $this->lastResponse; |
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} |
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/** |
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* Get the last response from the API |
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* |
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* @return null|ResponseInterface |
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*/ |
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public function getLastResponse() |
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{ |
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return $this->lastResponse; |
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} |
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public function getHttpClient() |
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{ |
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return $this->client; |
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} |
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/** |
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* Get the defaults headers like the Authorization field |
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* |
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* @return array |
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*/ |
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private function getDefaultHeaders() |
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{ |
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return [ |
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'Authorization' => 'Bearer '.$this->accessToken, |
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// Used the accept field is needed to fix the API version and avoid BC break from the API |
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'Accept' => 'application/vnd.wit.'.$this->apiVersion.'+json', |
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]; |
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} |
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/** |
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* @param ResponseInterface $response |
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* |
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* @throws BadResponseException |
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*/ |
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private function validateResponse(ResponseInterface $response) |
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{ |
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if ($response->getStatusCode() !== 200) { |
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$message = empty($response->getReasonPhrase()) ? 'Bad response status code' : $response->getReasonPhrase(); |
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throw new BadResponseException($message, $response); |
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} |
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} |
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/** |
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* @return HttpClient |
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*/ |
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1 |
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private function defaultHttpClient() |
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{ |
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return new GuzzleHttpClient(); |
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} |
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/** |
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* @param $method |
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* |
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* @throw \InvalidArgumentException |
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*/ |
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15 |
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private function validateMethod($method) |
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{ |
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if (!in_array(strtoupper($method), self::$allowedMethod)) { |
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throw new \InvalidArgumentException(sprintf('"%s" is not in the allowed methods "%s"', $method, implode(', ', self::$allowedMethod))); |
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} |
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} |
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} |
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tgallice /
wit-php
