json-logging-py | JSON / Logstash formatters for Python

You could do that by creating a custom Formatter using the built-in logger module. You can use the extra parameter when logging messages to pass contextual information, such as url and headers. Python's JSON module already implements pretty-printing JSON data in the dump() function, using the indent parameter to define the indent level. Below is a working example using a custom formatter to log messages in the format you described in your question. For App logs use, for instance, logger.info('sample log message'), whereas, for Access logs, use logger.info('sample log message', extra={'extra_info': get_extra_info(request)}). By passing the request instance to the get_extra_info() method, you can extract information such as the one you mentioned above. For more LogRecord attributes, have a look here. The below example uses a FileHandler for logging the messages in a log file as well. If you don't need that, you can comment it out in the get_logger() method.

app_logger.py