Guzzle 入門です。

1. @DQNEO (どきゅねお) at Mercari
2016.2.22 PHP BLT
Introduction to Guzzle

2. おとといアメリカ出張から
帰国しました
(5回目のアメリカ出張)
意識高まったので資料は英語です

3. Guzzle
• http client
• sync and async with slimilar interface
• Customizable
• Huge code base

4. Huge Code Base

5. Documentation is
a littile bit tough
http://docs.guzzlephp.org/

6. So read the codes!
(treasure of design patterns)

7. Version
Latest is ver 6
Use latest !

8. Depends
• guzzlehttp/psr7
• guzzlehttp/promises

9. Basic Usage
$client = new Client();
$response = $client->request('GET', 'http://localhost/', [
'query' => [
'name' => 'DQNEO',
]
]);
echo $response->getBody();
GET

10. Basic Usage
$client = new Client();
$response = $client->request('POST', 'http://localhost/', [
'form_params' => [
'name' => 'DQNEO',
]
]);
echo $response->getBody();
POST (x-www-form-urlencoded)

11. Basic Usage
$client = new Client();
$response = $client->request('POST', 'http://localhost/', [
'json' => [
'name' => 'DQNEO',
]
]);
echo $response->getBody();
POST (json body)

12. Basic Usage
$client = new Client();
$response = $client->request('PUT', 'http://localhost/', [
'json' => [
'name' => 'DQNEO',
]
]);
echo $response->getBody();
PUT (json body)

13. Asynchronous
Guzzle Promiseを使った
非同期処理によるAPIコールの高速化
com/suzuki/guzzle-promisewoshi-tuta-fei-tong-qi-chu-li-niyoruapik

14. How to test

15. Mock Handler
$handler = new MockHandler([
new Response(200, ['X-Foo' => 'Bar']),
new Response(202, ['Content-Length' => 0]),
new RequestException("Error", new Request('GET',
'test'))
]);

16. use GuzzleHttpClient;
use GuzzleHttpHandlerMockHandler;
use GuzzleHttpPsr7Response;
use GuzzleHttpPsr7Request;
use GuzzleHttpExceptionRequestException;
$handler = new MockHandler([
new Response(200, ['X-Foo' => 'Bar']),
new Response(202, ['Content-Length' => 0]),
new RequestException("Error", new Request('GET', 'test'))
]);
$client = new Client(['handler' => $handler]);
$response = $client->request('GET', '/');
echo $response->getStatusCode() . PHP_EOL; // => 200
$response = $client->request('GET', '/');
echo $response->getStatusCode() . PHP_EOL; // => 202
$response = $client->request('GET', '/'); // => RequestException
Mock Handler

17. Handler
is the essence of guzzle
$client = new Client(['handler' => $handler]);

18. Handler
you can pass a callable
$client = new Client([
'handler' => $callable
]);

19. Handler
spec of handler
handler:
(callable) Function that transfers HTTP requests over the wire.
The function is called with a
Psr7HttpMessageRequestInterface and array of transfer
options,
and must return a
GuzzleHttpPromisePromiseInterface

20. Handler
spec of handler
function (RequestInterface $request, array $options)
{
return $promise_interface;
}
or
public function __invoke(
RequestInterface $request, array $options
)
{
return $promise_interface;
}

21. Handler
• Closure
• CurlHandler
• CurlMultiHandler
• StreamHandler
• MockHandler
examples

22. Handler
should be callable
$client = new Client([
'handler' => 1
]);
PHP Fatal error: Uncaught InvalidArgumentException: handler
must be a callable

23. Handler
I implmented the type check

24. Huge Code Base

25. So lots of chances to
contribute

26. Read Code
and
Make Contributions!

27. We are hiring!