Use of ujson

[HAK-CODE]

Can powertools maintainers use ujson for encoding and decoding dicts, as it may be helpful in performance improvements.

[michaelbrewer]

You can swap out which json library you want to use, for the event, the dict was parsed before the lambda has been invoked.

There are examples of bring in your own serializer: https://awslabs.github.io/aws-lambda-powertools-python/latest/core/logger/#bring-your-own-json-serializer

[heitorlessa]

@HAK-CODE the reason we don't use ujson by default is that ujson it's not a fully compatible drop-in replacement. This could potentially break customers use cases we can't foresee. Instead, we prefer providing a mechanism to bring your own JSON serializer - for example, orjson as it's even faster than ujson.

If we are not providing you a mechanism to do that for a given feature, please don't hesitate to create a feature request.