Module `aws_lambda_powertools.utilities.parser.envelopes.sqs`

Expand source code

import logging
from typing import Any, Dict, List, Optional, Type, Union

from ..models import SqsModel
from ..types import Model
from .base import BaseEnvelope

logger = logging.getLogger(__name__)


class SqsEnvelope(BaseEnvelope):
    """SQS Envelope to extract array of Records

    The record's body parameter is a string, though it can also be a JSON encoded string.
    Regardless of its type it'll be parsed into a BaseModel object.

    Note: Records will be parsed the same way so if model is str,
    all items in the list will be parsed as str and npt as JSON (and vice versa)
    """

    def parse(self, data: Optional[Union[Dict[str, Any], Any]], model: Type[Model]) -> List[Optional[Model]]:
        """Parses records found with model provided

        Parameters
        ----------
        data : Dict
            Lambda event to be parsed
        model : Type[Model]
            Data model provided to parse after extracting data using envelope

        Returns
        -------
        List
            List of records parsed with model provided
        """
        logger.debug(f"Parsing incoming data with SQS model {SqsModel}")
        parsed_envelope = SqsModel.parse_obj(data)
        logger.debug(f"Parsing SQS records in `body` with {model}")
        return [self._parse(data=record.body, model=model) for record in parsed_envelope.Records]

Classes

class SqsEnvelope

SQS Envelope to extract array of Records

The record's body parameter is a string, though it can also be a JSON encoded string. Regardless of its type it'll be parsed into a BaseModel object.

Note: Records will be parsed the same way so if model is str, all items in the list will be parsed as str and npt as JSON (and vice versa)

Expand source code

class SqsEnvelope(BaseEnvelope):
    """SQS Envelope to extract array of Records

    The record's body parameter is a string, though it can also be a JSON encoded string.
    Regardless of its type it'll be parsed into a BaseModel object.

    Note: Records will be parsed the same way so if model is str,
    all items in the list will be parsed as str and npt as JSON (and vice versa)
    """

    def parse(self, data: Optional[Union[Dict[str, Any], Any]], model: Type[Model]) -> List[Optional[Model]]:
        """Parses records found with model provided

        Parameters
        ----------
        data : Dict
            Lambda event to be parsed
        model : Type[Model]
            Data model provided to parse after extracting data using envelope

        Returns
        -------
        List
            List of records parsed with model provided
        """
        logger.debug(f"Parsing incoming data with SQS model {SqsModel}")
        parsed_envelope = SqsModel.parse_obj(data)
        logger.debug(f"Parsing SQS records in `body` with {model}")
        return [self._parse(data=record.body, model=model) for record in parsed_envelope.Records]

Ancestors

BaseEnvelope
abc.ABC

Methods

def parse(self, data: Union[Dict[str, Any], Any, NoneType], model: Type[~Model]) ‑> List[Union[~Model, NoneType]]

Parses records found with model provided

Parameters

data : Dict: Lambda event to be parsed
model : Type[Model]: Data model provided to parse after extracting data using envelope

Returns

List: List of records parsed with model provided

Expand source code

def parse(self, data: Optional[Union[Dict[str, Any], Any]], model: Type[Model]) -> List[Optional[Model]]:
    """Parses records found with model provided

    Parameters
    ----------
    data : Dict
        Lambda event to be parsed
    model : Type[Model]
        Data model provided to parse after extracting data using envelope

    Returns
    -------
    List
        List of records parsed with model provided
    """
    logger.debug(f"Parsing incoming data with SQS model {SqsModel}")
    parsed_envelope = SqsModel.parse_obj(data)
    logger.debug(f"Parsing SQS records in `body` with {model}")
    return [self._parse(data=record.body, model=model) for record in parsed_envelope.Records]