shipengine-php/src/ShipEngineClient.php at main · DoNotCarry/shipengine-php · GitHub

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<?php declare(strict_types=1);

namespace ShipEngine;

use GuzzleHttp\Client;

use GuzzleHttp\Exception\ClientException;

use GuzzleHttp\Exception\GuzzleException;

use GuzzleHttp\Psr7\Request;

use Psr\Http\Client\ClientExceptionInterface;

use ShipEngine\Message\AccountStatusException;

use ShipEngine\Message\BusinessRuleException;

use ShipEngine\Message\RateLimitExceededException;

use ShipEngine\Message\SecurityException;

use ShipEngine\Message\ShipEngineException;

use ShipEngine\Message\SystemException;

use ShipEngine\Message\ValidationException;

use ShipEngine\Util\Assert;

/**

* A wrapped `REST` HTTP client to send HTTP requests from the SDK.

* @package ShipEngine

final class ShipEngineClient

{

/**

* Implement a GET request and return output

* @param string $path

* @param ShipEngineConfig $config

* @return array

public function get($path, ShipEngineConfig $config)

{

return $this->sendRequestWithRetries('GET', $path, null, $config);

}

/**

* Implement a POST request and return output

* @param string $path

* @param ShipEngineConfig $config

* @param array $params

* @return array

public function post($path, ShipEngineConfig $config, array $params = null)

{

return $this->sendRequestWithRetries('POST', $path, $params, $config);

}

/**

* Implement a PUT request and return output

* @param string $path

* @param ShipEngineConfig $config

* @param array $params

* @return array

public function put($path, ShipEngineConfig $config, array $params = null)

{

return $this->sendRequestWithRetries('PUT', $path, $params, $config);

}

/**

* Implement a DELETE request and return output

* @param string $path

* @param ShipEngineConfig $config

* @return array

public function delete($path, ShipEngineConfig $config)

{

return $this->sendRequestWithRetries('DELETE', $path, null, $config);

}

/**

* Send a `REST` request via *ShipEngineClient*.

* @param string $method

* @param string $path

* @param array|null $params

* @param ShipEngineConfig $config

* @return array

* @throws GuzzleException

private function sendRequestWithRetries(

string $method,

string $path,

?array $params,

ShipEngineConfig $config

): array

{

$apiResponse = null;

for ($retry = 0; $retry <= $config->retries; $retry++) {

try {

$apiResponse = $this->sendRequest($method, $path, $params, $retry, $config);

break;

} catch (\RuntimeException $err) {

if (($retry < $config->retries) &&

$err instanceof RateLimitExceededException &&

($err->retryAfter->s < $config->timeout->s)

) {

// The request was blocked due to exceeding the rate limit.

// So wait the specified amount of time and then retry.

sleep($err->retryAfter->s);

} else {

throw $err;

}

return $apiResponse;

}

/**

* Send a `REST` request via HTTP Messages to ShipEngine API. If the response

* is successful, the result is returned. Otherwise, an error is thrown.

* @param string $method

* @param string $path

* @param array|null $params

* @param int $retry

* @param ShipEngineConfig $config

* @return array

* @throws GuzzleException

private function sendRequest(

string $method,

string $path,

?array $params,

int $retry,

ShipEngineConfig $config

): array {

$requestHeaders = array(

'api-key' => $config->apiKey,

'User-Agent' => $this->deriveUserAgent(),

'Content-Type' => 'application/json',

'Accept' => 'application/json'

);

$client = new Client(

[

'base_uri' => $config->baseUrl,

'timeout' => $config->timeout,

'max_retry_attempts' => $config->retries

]

);

$jsonData = json_encode($params, JSON_UNESCAPED_SLASHES);

$request = new Request($method, $path, $requestHeaders, $jsonData);

try {

$response = $client->send(

$request,

['timeout' => $config->timeout->s, 'http_errors' => false]

);

} catch (ClientException $err) {

throw new ShipEngineException(

"An unknown error occurred while calling the ShipEngine $method API:\n" .

$err->getMessage(),

null,

'ShipEngine',

'System',

'Unspecified'

);

}

$responseBody = (string)$response->getBody();

$parsedResponse = json_decode($responseBody, true);

$statusCode = $response->getStatusCode();

// $assert->isResponse404($statusCode, $parsedResponse);

// $assert->isResponse429($statusCode, $parsedResponse, $config);

// $assert->isResponse500($statusCode, $parsedResponse);

return $this->handleResponse($parsedResponse);

}

/**

* Handles the response from ShipEngine API.

* @param array $response

* @return array

private function handleResponse(array $response): array

{

if (!isset($response['errors']) || (count($response['errors']) == 0)) {

return $response;

}

$error = $response['errors'][0];

throw new ShipEngineException(

$error['message'],

$response['request_id'],

$error['error_source'],

$error['error_type'],

$error['error_code']

);

}

/**

* Derive a User-Agent header from the environment. This is the user-agent that will be set on every request

* via the ShipEngine Client.

* @returns string

private function deriveUserAgent(): string

{

$sdk_version = 'shipengine-php/' . ShipEngine::VERSION;

$os = explode(' ', php_uname());

$os_kernel = $os[0] . '/' . $os[2];

$php_version = 'PHP/' . phpversion();

return $sdk_version . ' ' . $os_kernel . ' ' . $php_version;

}

shipengine-php/src/ShipEngineClient.php at main · DoNotCarry/shipengine-php · GitHub

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