65 lines
2.0 KiB
Python
65 lines
2.0 KiB
Python
from aws_lambda_powertools import Logger
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from aws_lambda_powertools.utilities.data_classes import (
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EventBridgeEvent,
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event_source,
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)
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from aws_lambda_powertools.utilities.typing import LambdaContext
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from layercake.dateutils import now
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from layercake.dynamodb import (
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ComposeKey,
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DynamoDBPersistenceLayer,
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KeyPair,
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)
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from boto3clients import dynamodb_client
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from config import ORDER_TABLE
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logger = Logger(__name__)
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order_layer = DynamoDBPersistenceLayer(ORDER_TABLE, dynamodb_client)
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@event_source(data_class=EventBridgeEvent)
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@logger.inject_lambda_context
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def lambda_handler(event: EventBridgeEvent, context: LambdaContext) -> bool:
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"""Set the order status to `EXPIRED` 24 hours after it becomes overdue."""
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new_image = event.detail['new_image']
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now_ = now()
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try:
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order_layer.update_item(
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key=KeyPair(new_image['id'], '0'),
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update_expr='SET #status = :expired, updated_at = :updated_at',
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cond_expr='#status IN (:pending) and payment_method = :payment_method',
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expr_attr_names={
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'#status': 'status',
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},
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expr_attr_values={
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':expired': 'EXPIRED',
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':pending': 'PENDING',
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':payment_method': 'MANUAL',
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':updated_at': now_,
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},
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)
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except Exception:
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logger.info('Failed to update status to EXPIRED', order_id=new_image['id'])
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order_layer.put_item(
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item={
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'id': new_image['id'],
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'sk': ComposeKey('failed', prefix=new_image['sk']),
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'created_at': now_,
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}
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)
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return False
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else:
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logger.info('Status set to EXPIRED', order_id=new_image['id'])
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order_layer.put_item(
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item={
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'id': new_image['id'],
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'sk': ComposeKey('completed', prefix=new_image['sk']),
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'created_at': now_,
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}
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)
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return True
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