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[DEPRECATED] Logs HTTP requests and Responses as they are sent over the wire. Not used in Guzzle 6.

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Guzzle Log Subscriber

The LogSubscriber logs HTTP requests and responses to a PSR-3 logger, callable, resource returned by fopen(), or by calling echo().

Here's the simplest example of how it's used:

use GuzzleHttp\Client;
use GuzzleHttp\Subscriber\Log\LogSubscriber;

$client = new Client();
$client->getEmitter()->attach(new LogSubscriber());
$client->get('http://httpbin.org');

Running the above example will echo a message using the Apache Common Log Format (CLF).

[info] hostname Guzzle/5.0 curl/7.21.4 PHP/5.5.7 - [2014-03-01T22:48:13+00:00] "GET / HTTP/1.1" 200 7641

Note

Because no logger is provided, the subscriber simply logs messages with echo(). This is the method used for logging if null is provided.

Installing

This project can be installed using Composer. Add the following to your composer.json:

{
    "require": {
        "guzzlehttp/log-subscriber": "~1.0"
    }
}

Using PSR-3 Loggers

You can provide a PSR-3 logger to the constructor as well. The following example shows how the LogSubscriber can be combined with Monolog.

use GuzzleHttp\Client;
use GuzzleHttp\Subscriber\Log\LogSubscriber;
use Monolog\Logger;
use Monolog\Handler\StreamHandler;

// create a log channel
$log = new Logger('name');
$log->pushHandler(new StreamHandler('/path/to/your.log', Logger::WARNING));

$client = new Client();
$subscriber = new LogSubscriber($log);
$client->getEmitter()->attach($subscriber);

Logging with a custom message format

The LogSubscriber's constructor accepts a logger as the first argument and a message format string or a message formatter as the second argument. You could log the full HTTP request and Response message using the debug format via GuzzleHttp\Subscriber\Log\Formatter::DEBUG.

use GuzzleHttp\Subscriber\Log\LogSubscriber;
use GuzzleHttp\Subscriber\Log\Formatter;

// Log the full request and response messages using echo() calls.
$subscriber = new LogSubscriber(null, Formatter::DEBUG);

Message Formatter

Included in this repository is a message formatter. The message formatter is used to format log messages for both requests and responses using a log template that uses variable substitution for string enclosed in braces ({}).

The following variables are available in message formatter templates:

{request}
Full HTTP request message
{response}
Full HTTP response message
{ts}
Timestamp
{host}
Host of the request
{method}
Method of the request
{url}
URL of the request
{protocol}
Request protocol
{version}
Protocol version
{resource}
Resource of the request (path + query + fragment)
{hostname}
Hostname of the machine that sent the request
{code}
Status code of the response (if available)
{phrase}
Reason phrase of the response (if available)
{error}
Any error messages (if available)
{req_header_*}
Replace * with the lowercased name of a request header to add to the message.
{res_header_*}
Replace * with the lowercased name of a response header to add to the message
{req_headers}
Request headers as a string.
{res_headers}
Response headers as a string.
{req_body}
Request body as a string.
{res_body}
Response body as a string.

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[DEPRECATED] Logs HTTP requests and Responses as they are sent over the wire. Not used in Guzzle 6.

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