如何使用 boto3 dynamo DB 查询 GSI 和分区键？

Question

I have to query a dynamoDB table with boto3 by using the GSI and the PK, my GSI is a date and I need to get the latest date, but i don't know how to query on GSI and on the PK...

My code

if pk_id:
    self.__logger.info(f"DynamoDB : get current object attached to pk {pk_id}")
    item_found = self.table_query(???)
    if item_found is not None and item_found.get('Items'):
        return item_found
    else:
        return {}

Answer 1

To Query a GSI it looks something like this:

    response = client.query(
        TableName='table-name',
        IndexName='index-name',
        ExpressionAttributeNames={
            '#pk': 'gsi_pk',
        },
        ExpressionAttributeValues={
            ':pk': pk_id,
        },
        KeyConditionExpression='#pk = :pk'
    )