Search code examples
pythonloggingujson

Specifying how ujson handles serialization of a custom object?

I have a custom object that I want to log using python's logger module.

I log it with a dict:

logger.info({
    'message': 'something happened',
    'object': my_custom_object,
})

The problem is logger uses ujson.dumps() to serialize the inputs to logger.info().

ujson.dumps() converts my_custom_object to a list of the names of instance variables. This isn't very helpful. I want to specify a custom toJson or toDict method to use when trying to serialize this method instead.

Is this possible?

A bit like how you can specify a __str__ method and any time python tries to convert your object to string it will call that method instead.

Solution

  • Apparently you actually can implement a toDict method on the object and it will work.