79 lines
2.3 KiB
Python
79 lines
2.3 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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DynamoDBPersistenceLayer,
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KeyPair,
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SortKey,
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TransactItems,
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)
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from boto3clients import dynamodb_client
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from config import ORDER_TABLE, USER_TABLE
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logger = Logger(__name__)
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user_layer = DynamoDBPersistenceLayer(USER_TABLE, dynamodb_client)
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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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new_image = event.detail['new_image']
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now_ = now()
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ids = user_layer.collect.get_items(
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KeyPair(
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pk='cnpj',
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sk=SortKey(new_image['cnpj'], path_spec='user_id'),
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rename_key='org_id',
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)
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+ KeyPair(
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pk='email',
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sk=SortKey(new_image['email'], path_spec='user_id'),
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rename_key='user_id',
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),
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flatten_top=False,
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)
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# Sometimes the function executes before the user insertion completes,
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# so an exception is raised to trigger a retry.
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if len(ids) < 2:
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raise ValueError('IDs not found.')
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transact = TransactItems(order_layer.table_name)
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transact.update(
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key=KeyPair(new_image['id'], '0'),
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update_expr='SET metadata__tenant_id = :tenant_id, \
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metadata__related_ids = :related_ids, update_date = :update_date',
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expr_attr_values={
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':tenant_id': ids['org_id'],
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':related_ids': set(ids.values()),
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':update_date': now_,
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},
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)
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transact.put(
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item={
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'id': new_image['id'],
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'sk': 'metadata#tenant',
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'tenant_id': f'ORG#{ids["org_id"]}',
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'create_date': now_,
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}
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)
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for k, v in ids.items():
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transact.put(
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item={
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'id': new_image['id'],
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'sk': 'related_ids#%s' % k.removesuffix('_id'), # e.g. related_ids#user
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'create_date': now_,
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k: v,
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}
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)
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order_layer.transact_write_items(transact)
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return True
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