Logger Hooks

Logger hooks are functions or callable classes that receive all the logging information that should be logged by the instance in any of the calls of the debug, info, warning, error, fatal or critical methods.

Hooks can be used to modify logging message or extra data fields before being logged, stream log records to any other platform or trigger any other feature on certain log data conditions.

• Example:

def hook_function(context: HookContext) -> NoReturn:
    if 'foo' in context.extra_data:
        del context.extra_data['foo']

logger.add_hook(hook_function)

• Example 2:

from elasticlogger import Logger
from elasticlogger.hooks import HookContext


class HookClass:
    def __call__(self, context: HookContext) -> NoReturn:
        if 'bar' in context.extra_data:
            context.extra_data['bar'] = context.extra_data['foo']

logger = Logger('test')
logger.add_hook(HookClass())

Available hooks:

• Elasticsearch