Posted: 16/Jan/2024
The DynamoDB DeleteItem API does what it says - delete an item. But it can also:
- Return the content of the old item (at no additional cost)
- Return the consumed Write Capacity Units (WCU)
- Return the item attributes for an operation that failed a condition check (again, no additional cost)
- Retrieve statistics about item collections, if any, that were affected during the operation
Here is an example:
resp,err:=client.DeleteItem(context.Background(),&dynamodb.DeleteItemInput{TableName:aws.String(tableName),Key:map[string]types.AttributeValue{"email":&types.AttributeValueMemberS{Value:email},},ReturnValues:types.ReturnValueAllOld,ReturnConsumedCapacity:types.ReturnConsumedCapacityTotal,ReturnValuesOnConditionCheckFailure:types.ReturnValuesOnConditionCheckFailureAllOld,ReturnItemCollectionMetrics:types.ReturnItemCollectionMetricsSize,})Recommended reading - DeleteItem API doc