How to handle Guzzle exception and get Http Body?

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Guzzle 3.x

use Guzzle\Http\Exception\ClientErrorResponseException;

...

try {
    $response = $request->send();
} catch (ClientErrorResponseException $exception) {
    $responseBody = $exception->getResponse()->getBody(true);
}

在 getBody 傳入參數 true 表示你想要將 response body 轉成字串，
如果沒有將會回傳 Guzzle\Http\EntityBody 的 instance。

Guzzle 6.x

你可能會需要catch的 exception 類型有：

• GuzzleHttp\Exception\ClientException : for 4xx level errors
• GuzzleHttp\Exception\ServerException : for 5xx level errors
• GuzzleHttp\Exception\BadResponseException : for both (superclass)

$client = new GuzzleHttp\Client;
try {
    $client->get("{$yourRequestUrl}");    
}
catch (GuzzleHttp\Exception\ClientException $e) {
    $response = $e->getResponse();
    $responseBodyAsString = $response->getBody()->getContents();
}

Reference:

• Guzzle3 documentation
• Guzzle6 documentation