Module aws_lambda_powertools.utilities.idempotency.serialization.base

Serialization for supporting idempotency

Classes

class BaseIdempotencyModelSerializer

Abstract Base Class for Idempotency serialization layer, for using a model as data object representation.

Expand source code

class BaseIdempotencyModelSerializer(BaseIdempotencySerializer):
    """
    Abstract Base Class for Idempotency serialization layer, for using a model as data object representation.
    """

    @classmethod
    @abstractmethod
    def instantiate(cls, model_type: Any) -> BaseIdempotencySerializer:
        """
        Creates an instance of a serializer based on a provided model type.
        In case the model_type is unknown, None will be sent as `model_type`.
        It's on the implementer to verify that:
        - None is handled correctly
        - A model type not matching the expected types is handled

        Parameters
        ----------
        model_type: Any
            The model type to instantiate the class for

        Returns
        -------
        BaseIdempotencySerializer
            Instance of the serializer class
        """
        pass

Ancestors

• BaseIdempotencySerializer
• abc.ABC

Subclasses

• DataclassSerializer
• PydanticSerializer

Static methods

def instantiate(model_type: Any) ‑> BaseIdempotencySerializer

Creates an instance of a serializer based on a provided model type. In case the model_type is unknown, None will be sent as model_type. It's on the implementer to verify that: - None is handled correctly - A model type not matching the expected types is handled

Parameters

model_type : Any

The model type to instantiate the class for

Returns

BaseIdempotencySerializer

Instance of the serializer class

class BaseIdempotencySerializer

Abstract Base Class for Idempotency serialization layer, supporting dict operations.

Expand source code

class BaseIdempotencySerializer(ABC):
    """
    Abstract Base Class for Idempotency serialization layer, supporting dict operations.
    """

    @abstractmethod
    def to_dict(self, data: Any) -> dict:
        raise NotImplementedError("Implementation of to_dict is required")

    @abstractmethod
    def from_dict(self, data: dict) -> Any:
        raise NotImplementedError("Implementation of from_dict is required")

Ancestors

• abc.ABC

Subclasses

• BaseIdempotencyModelSerializer
• CustomDictSerializer
• NoOpSerializer

Methods

def from_dict(self, data: dict) ‑> Any

def to_dict(self, data: Any) ‑> dict