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A simple Django app to log requests/responses in various formats, such as JSON.

Project Description

Django Logging

A Django library that logs request, response and exception details in a JSON document. It uses the python rotation mechanism to rotate the file logs, but the rotation files will be gziped and it has support for sending the log messages to Elasticsearch.

Installation

pip install git+https://github.com/cipriantarta/django-logging

or

pip install django-logging-json

Quick start

  1. Add “django_logging” to your INSTALLED_APPS settings like this:
INSTALLED_APPS = (
    ...
    'django_logging',
)
  1. Include the DjangoLoggingMiddleware middleware in your MIDDLEWARE_CLASSES like this:
MIDDLEWARE_CLASSES = (
    'django_logging.middleware.DjangoLoggingMiddleware',
    ...
)

Handlers

AppFileHandler

This handle will log request/response info to LOG_PATH/app.log. It will also log request/exception, for unhandled exceptions, in the same file. Log format:

Request and Response

{
    "INFO":
    {
        "timestamp":
        {
            "request": {
            ... request info ...
            },
            "response": {
            ... response info ...
            }
        }
    }
}

Request and Exception

{
    "ERROR":
    {
        "timestamp":
        {
            "request": {
            ... request info ...
            },
            "exception": {
                "message": "Exception message",
                "traceback": [
                    ...
                ]
            }
        }
    }
}

SQLFileHandler

This handler will log all queries to LOG_PATH/sql.log. In a production environment you should set LOG_LEVEL = Error or SQL_LOG = False to avoid performance issues. The queries will also be logged to the console if CONSOLE_LOG is set to True

DebugFileHandler

This handler will log debug messages to LOG_PATH/debug.log. This handler is only used when settings.DEBUG is set to True.

Log format:

[%(levelname)s - %(created)s], file:%(module)s.py, func:%(funcName)s, ln:%(lineno)s: %(message)s

Custom Use

To log debug messages:

from django_logging import log

log.debug('debug message')

To log handled exceptions:

from django_logging import log, ErrorLogObject

log.error(ErrorLogObject(request, exception))

Settings

Inspired by Django Rest Framework, Django Logging settings are grouped in a single dictionary.

To override Django Logging settings, add a dictionary in your project’s settings file

DJANGO_LOGGING = {
    "CONSOLE_LOG": False
}

Default Settings

CONSOLE_LOG = True - Log to console.

SQL_LOG = True - Log SQL queries.

LOG_LEVEL = ‘debug’ - If settings.DEBUG is set to True, otherwise LOG_LEVEL is set to ‘info’

DISABLE_EXISTING_LOGGERS = True - Set this to False if you want to combine with multiple loggers.

LOG_PATH = ‘{}/logs’.format(settings.BASE_DIR) - If the logs folder does not exist, it will be created.

IGNORED_PATHS = [‘/admin’, ‘/static’, ‘/favicon.ico’] - List of URL endpoints to ignore.

RESPONSE_FIELDS = (‘status’, ‘reason’, ‘charset’, ‘headers’, ‘content’) - List of response fields to log.

CONTENT_JSON_ONLY = True - Log response content only if its a JSON document.

ROTATE_MB = 100 - Maximum size in MB that the log file can have before it gets rotated.

ROTATE_COUNT = 10 - Maximum number of rotated log files.

INDENT_CONSOLE_LOG = 2 - Indent console log by “n” spaces.

ELASTICSEARCH_ENABLED = False - Set to yes to enable elasticsearch support.

ELASTICSEARCH_HOSTS = [“localhost”] - Elasticsearch hosts

Change Log

1.5.5 [2017-06-21]

  • fixes compatibility for django MIDDLEWARE django >= 1.10

1.5.4 [2017-02-08]

  • fixes compatibility with python < 3.5 when logging exceptions

1.5.3 [2016-06-26]

  • bug fixing

1.5 [2016-06-04]

  • do not return a response in process_exception. Give other middlewares a chance to process the exception.
  • console log indentation
  • elastic search support. below a sample chart using kibana with elasticsearch and django-logging

1.4 [2016-02-19]

  • bug fixing
  • added support for query logging when using multiple database
  • added database alias for sql logs if multiple databases are used
  • added plain dict logging support

1.3 [2015-12-13]

  • added support for Python 2.7
  • added support for Django >= 1.4

1.2 [2015-11-22]

  • added sql logging support
  • log entries are now sorted by keys
  • console handler now indents the log entries by 4 spaces
  • log response content if it’s JSON (bug)

1.1 [2015-11-17]

  • added exception “type” for exception log entries
Release History

Release History

This version
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1.5.5

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1.5.4

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1.5.3

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1.5.2

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1.5.1

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1.5

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1.4

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1.3

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1.2

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1.1

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1.0

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