nekonomokochan/php-json-logger

LoggingLibrary for PHP. Output by JSON Format

Thursday, July 5, 2018
by nekonomokochan
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The README.md

php-json-logger

, _(*1)

LoggingLibrary for PHP. Output by JSON Format, _(*2)

This Library is mainly intended for use in web applications., _(*3)

Getting Started

Install composer package

composer require nekonomokochan/php-json-logger

How To Use

Basic usage

<?php
use Nekonomokochan\PhpJsonLogger\LoggerBuilder;

$context = [
    'title' => 'Test',
    'price' => 4000,
    'list'  => [1, 2, 3],
    'user'  => [
        'id'   => 100,
        'name' => 'keitakn',
    ],
];

$loggerBuilder = new LoggerBuilder();
$logger = $loggerBuilder->build();
$logger->info('🐱', $context);

It is output as follows., _(*4)

{
    "log_level": "INFO",
    "message": "🐱",
    "channel": "PhpJsonLogger",
    "trace_id": "35b627ce-55e0-4729-9da0-fbda2a7d817d",
    "file": "\/home\/vagrant\/php-json-logger\/tests\/LoggerTest.php",
    "line": 42,
    "context": {
        "title": "Test",
        "price": 4000,
        "list": [
            1,
            2,
            3
        ],
        "user": {
            "id": 100,
            "name": "keitakn"
        }
    },
    "remote_ip_address": "127.0.0.1",
    "server_ip_address": "127.0.0.1",
    "user_agent": "unknown",
    "datetime": "2018-06-04 17:21:03.631409",
    "timezone": "Asia\/Tokyo",
    "process_time": 631.50811195373535
}

The unit of process_time is ms(millisecond)., _(*5)

How to change output filepath

Default output filepath is /tmp/php-json-logger-yyyy-mm-dd.log ., _(*6)

If you want to change the output filepath, please set the output filepath to the builder class., _(*7)

<?php
use Nekonomokochan\PhpJsonLogger\LoggerBuilder;

$fileName = '/tmp/test-php-json-logger.log';

$context = [
    'cat'    => '🐱',
    'dog'    => '🐶',
    'rabbit' => '🐰',
];

$loggerBuilder = new LoggerBuilder();
$loggerBuilder->setFileName($fileName);
$logger = $loggerBuilder->build();
$logger->info('testSetLogFileName', $context);

The output filepath is /tmp/test-php-json-logger-yyyy-mm-dd.log ., _(*8)

It is output as follows., _(*9)

{
    "log_level": "INFO",
    "message": "testSetLogFileName",
    "channel": "PhpJsonLogger",
    "trace_id": "20f39cdb-dbd8-470c-babd-093a2974d169",
    "file": "\/home\/vagrant\/php-json-logger\/tests\/LoggerTest.php",
    "line": 263,
    "context": {
        "cat": "🐱",
        "dog": "🐶",
        "rabbit": "🐰"
    },
    "remote_ip_address": "127.0.0.1",
    "server_ip_address": "127.0.0.1",
    "user_agent": "unknown",
    "datetime": "2018-06-05 11:28:03.214995",
    "timezone": "Asia\/Tokyo",
    "process_time": 215.09790420532227
}

How to Set `trace_id`

Any value can be set for trace_id., _(*10)

This will help you when looking for logs you want., _(*11)

<?php
use Nekonomokochan\PhpJsonLogger\LoggerBuilder;

$context = [
    'name' => 'keitakn',
];

$loggerBuilder = new LoggerBuilder();
$loggerBuilder->setTraceId('MyTraceID');
$logger = $loggerBuilder->build();
$logger->info('testSetTraceIdIsOutput', $context);

It is output as follows., _(*12)

{
    "log_level": "INFO",
    "message": "testSetTraceIdIsOutput",
    "channel": "PhpJsonLogger",
    "trace_id": "MyTraceID",
    "file": "\/home\/vagrant\/php-json-logger\/tests\/LoggerTest.php",
    "line": 214,
    "context": {
        "name": "keitakn"
    },
    "remote_ip_address": "127.0.0.1",
    "server_ip_address": "127.0.0.1",
    "user_agent": "unknown",
    "datetime": "2018-06-05 11:36:02.394269",
    "timezone": "Asia\/Tokyo",
    "process_time": 394.35911178588867
}

How to change logLevel

Please use \Nekonomokochan\PhpJsonLogger\LoggerBuilder::setLogLevel() ., _(*13)

For example, the following code does not output logs., _(*14)

Because the level is set to CRITICAL., _(*15)

<?php
use Nekonomokochan\PhpJsonLogger\LoggerBuilder;

$context = [
    'cat'    => '🐱',
    'dog'    => '🐶',
    'rabbit' => '🐰',
];

$loggerBuilder = new LoggerBuilder();
$loggerBuilder->setLogLevel(LoggerBuilder::CRITICAL);
$logger = $loggerBuilder->build();
$logger->info('testSetLogLevel', $context);

You can set the following values for logLevel ., _(*16)

These are the same as logLevel defined in Monolog., _(*17)

DEBUG = 100
INFO = 200
NOTICE = 250
WARNING = 300
ERROR = 400
CRITICAL = 500
ALERT = 550
EMERGENCY = 600

How to change channel

Default channel is PhpJsonLogger., _(*18)

If you want to change the channel, you can change it with the following code., _(*19)

$loggerBuilder = new LoggerBuilder();
$loggerBuilder->setChannel('My Favorite Animals');

For example, the output is as follows., _(*20)

{
    "log_level": "INFO",
    "message": "testCanSetChannel",
    "channel": "My Favorite Animals",
    "trace_id": "4b8aa070-a533-4376-9bf5-270c8fcc6d87",
    "file": "\/home\/vagrant\/php-json-logger\/tests\/Logger\/LoggerTest.php",
    "line": 347,
    "context": {
        "animals": "🐱🐶🐰🐱🐹"
    },
    "remote_ip_address": "127.0.0.1",
    "server_ip_address": "127.0.0.1",
    "user_agent": "unknown",
    "datetime": "2018-06-07 17:56:48.538117",
    "timezone": "Asia\/Tokyo",
    "process_time": 538.48695755004883
}

How to change Log Rotation Date

This is the default setting to save logs for 7 days., _(*21)

If you want to change the log Rotation date, you can change it with the following code., _(*22)

The following code sets the log retention period to 2 days., _(*23)

$loggerBuilder = new LoggerBuilder();
$loggerBuilder->setMaxFiles(2);

Extend and use `\Nekonomokochan\PhpJsonLogger\JsonFormatter`

You can make your own \Monolog\Logger using only \Nekonomokochan\PhpJsonLogger\JsonFormatter., _(*24)

This method is useful when you need \Monolog\Logger in web application framework(e.g. Laravel)., _(*25)

The following is sample code., _(*26)

<?php
use Monolog\Logger;
use Monolog\Handler\RotatingFileHandler;
use Monolog\Processor\IntrospectionProcessor;
use Nekonomokochan\PhpJsonLogger\JsonFormatter;

$logFileName = '/tmp/extended-monolog-test.log';

// create extendedMonolog Instance
$formatter = new JsonFormatter();

$rotating = new RotatingFileHandler(
    $logFileName,
    7,
    Logger::INFO
);
$rotating->setFormatter($formatter);

$introspection = new IntrospectionProcessor(
    Logger::INFO,
    ['Nekonomokochan\\PhpJsonLogger\\'],
    0
);

$extraRecords = function ($record) {
    $record['extra']['trace_id'] = 'ExtendedMonologTestTraceId';
    $record['extra']['created_time'] = microtime(true);

    return $record;
};

$extendedMonolog = new Logger(
    'ExtendedMonolog',
    [$rotating],
    [$introspection, $extraRecords]
);

// output info log
$context = [
    'cat'    => '🐱',
    'dog'    => '🐶',
    'rabbit' => '🐰',
];

$extendedMonolog->info('outputInfoLogTest', $context);

It is output to extended-monolog-test-yyyy-mm-dd.log as follows, _(*27)

{
    "log_level": "INFO",
    "message": "outputInfoLogTest",
    "channel": "ExtendedMonolog",
    "trace_id": "ExtendedMonologTestTraceId",
    "file": "\/home\/vagrant\/php-json-logger\/tests\/ExtendedMonologTest.php",
    "line": 85,
    "context": {
        "cat": "🐱",
        "dog": "🐶",
        "rabbit": "🐰"
    },
    "remote_ip_address": "127.0.0.1",
    "server_ip_address": "127.0.0.1",
    "user_agent": "unknown",
    "datetime": "2018-06-06 17:14:26.042013",
    "timezone": "Asia\/Tokyo",
    "process_time": 0.1678466796875
}

The following code is necessary to output trace_id and process_time., _(*28)

<?php
$extraRecords = function ($record) {
    $record['extra']['trace_id'] = 'ExtendedMonologTestTraceId';
    $record['extra']['created_time'] = microtime(true);

    return $record;
};

The code below is the code necessary to normally display the stack trace with JSON., _(*29)

<?php
$introspection = new IntrospectionProcessor(
    Logger::INFO,
    ['Nekonomokochan\\PhpJsonLogger\\'],
    0
);

To output the stack trace to the log, execute the following code., _(*30)

<?php
$exception = new \Exception('ExtendedMonologTest.outputErrorLog', 500);
$context = [
    'cat'    => '🐱(=^・^=)🐱',
    'dog'    => '🐶Uo･ｪ･oU🐶',
    'rabbit' => '🐰🐰🐰',
];

$extendedMonolog->error(
    get_class($exception),
    $this->formatPhpJsonLoggerErrorsContext($exception, $context)
);

Please pay attention to the part $this->formatPhpJsonLoggerErrorsContext($exception, $context)., _(*31)

This is necessary processing to format the error log into JSON and output it., _(*32)

This is the method implemented in \Nekonomokochan\PhpJsonLogger\ErrorsContextFormat., _(*33)

It is output to extended-monolog-test-yyyy-mm-dd.log as follows., _(*34)

If you want to know more detailed usage, please look at php-json-logger/tests/ExtendedMonologTest.php., _(*35)

{
    "log_level": "ERROR",
    "message": "Exception",
    "channel": "PhpJsonLogger",
    "trace_id": "ExtendedMonologTestTraceId",
    "file": "\/home\/vagrant\/php-json-logger\/tests\/ExtendedMonologTest.php",
    "line": 126,
    "context": {
        "cat": "🐱(=^・^=)🐱",
        "dog": "🐶Uo･ｪ･oU🐶",
        "rabbit": "🐰🐰🐰"
    },
    "remote_ip_address": "127.0.0.1",
    "server_ip_address": "127.0.0.1",
    "user_agent": "unknown",
    "datetime": "2018-06-06 17:37:57.440757",
    "timezone": "Asia\/Tokyo",
    "process_time": 0.16093254089355469,
    "errors": {
        "message": "ExtendedMonologTest.outputErrorLog",
        "code": 500,
        "file": "\/home\/vagrant\/php-json-logger\/tests\/ExtendedMonologTest.php",
        "line": 117,
        "trace": [
            "#0 \/home\/vagrant\/php-json-logger\/vendor\/phpunit\/phpunit\/src\/Framework\/TestCase.php(1145): Nekonomokochan\\Tests\\ExtendedMonologTest->outputErrorLog()",
            "#1 \/home\/vagrant\/php-json-logger\/vendor\/phpunit\/phpunit\/src\/Framework\/TestCase.php(840): PHPUnit\\Framework\\TestCase->runTest()",
            "#2 \/home\/vagrant\/php-json-logger\/vendor\/phpunit\/phpunit\/src\/Framework\/TestResult.php(645): PHPUnit\\Framework\\TestCase->runBare()",
            "#3 \/home\/vagrant\/php-json-logger\/vendor\/phpunit\/phpunit\/src\/Framework\/TestCase.php(798): PHPUnit\\Framework\\TestResult->run()",
            "#4 \/home\/vagrant\/php-json-logger\/vendor\/phpunit\/phpunit\/src\/Framework\/TestSuite.php(776): PHPUnit\\Framework\\TestCase->run()",
            "#5 \/home\/vagrant\/php-json-logger\/vendor\/phpunit\/phpunit\/src\/TextUI\/TestRunner.php(529): PHPUnit\\Framework\\TestSuite->run()",
            "#6 \/home\/vagrant\/php-json-logger\/vendor\/phpunit\/phpunit\/src\/TextUI\/Command.php(198): PHPUnit\\TextUI\\TestRunner->doRun()",
            "#7 \/home\/vagrant\/php-json-logger\/vendor\/phpunit\/phpunit\/src\/TextUI\/Command.php(151): PHPUnit\\TextUI\\Command->run()",
            "#8 \/home\/vagrant\/php-json-logger\/vendor\/phpunit\/phpunit\/phpunit(53): PHPUnit\\TextUI\\Command::main()"
        ]
    }
}

Notification To Slack

To send the log to Slack please execute the following code., _(*36)

This code will be sent to slack if the log level is CRITICAL or higher., _(*37)

<?php
use Nekonomokochan\PhpJsonLogger\LoggerBuilder;
use Nekonomokochan\PhpJsonLogger\SlackHandlerBuilder;

$exception = new \Exception('TestException', 500);
$context = [
    'name'  => 'keitakn',
    'email' => 'dummy@email.com',
];

$slackToken = 'YOUR_SLACK_TOKEN';
$slackChannel = 'YOUR_SLACK_CHANNEL';

$slackHandlerBuilder = new SlackHandlerBuilder($slackToken, $slackChannel);
$slackHandlerBuilder->setLevel(LoggerBuilder::CRITICAL);

$loggerBuilder = new LoggerBuilder();
$loggerBuilder->setFileName($this->outputFileBaseName);
$loggerBuilder->setSlackHandler($slackHandlerBuilder->build());
$logger = $loggerBuilder->build();
$logger->critical($exception, $context);

Use in Docker

Please use LoggerBuilder.setUseInDocker in order to use it on Docker., _(*38)

When setUseInDocker is set to true, no file output is done and the log is output as stdout., _(*39)

<?php
use Nekonomokochan\PhpJsonLogger\LoggerBuilder;

$exception = new \Exception('TestException', 500);
$context = [
    'name'  => 'keitakn',
    'email' => 'dummy@email.com',
];

$loggerBuilder = new LoggerBuilder();
$loggerBuilder->setFileName($this->outputFileBaseName);
$loggerBuilder->setUseInDocker(true);
$logger = $loggerBuilder->build();
$logger->critical($exception, $context);

Caution

\Nekonomokochan\PhpJsonLogger\Logger is a subclass that extends \Monolog\Logger, _(*40)

You can use it like \Monolog\Logger., _(*41)

However, for the following methods, you can pass only classes that extend \Exception or \Error as arguments., _(*42)

\Nekonomokochan\PhpJsonLogger\Logger::error()
\Nekonomokochan\PhpJsonLogger\Logger::critical()
\Nekonomokochan\PhpJsonLogger\Logger::alert()
\Nekonomokochan\PhpJsonLogger\Logger::emergency()

MIT

library php-json-logger

LoggingLibrary for PHP. Output by JSON Format

nekonomokochan/php-json-logger

The README.md

php-json-logger

Getting Started

Install composer package

How To Use

Basic usage

How to change output filepath

How to Set trace_id

How to change logLevel

How to change channel

How to change Log Rotation Date

Extend and use \Nekonomokochan\PhpJsonLogger\JsonFormatter

Notification To Slack

Use in Docker

Caution

License

The Versions

dev-master

The Requires

The Development Requires

by keitakn

v1.2.0

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The Development Requires

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v1.1.0

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The Development Requires

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v1.0.0

The Requires

The Development Requires

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v0.1.1

The Requires

The Development Requires

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v0.1.0

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The Development Requires

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v0.0.3

The Requires

The Development Requires

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v0.0.2

The Requires

The Development Requires

by keitakn

v0.0.1

The Requires

The Development Requires

by keitakn

How to Set `trace_id`

Extend and use `\Nekonomokochan\PhpJsonLogger\JsonFormatter`