Empty data object when deleting item from dynamodb

Question

According to the docs I should get a data structure with the item as it was prior to the deletion (in case there was no error)
I do check there was no error but I get an empty object for data:

    docClient.delete(params, (err, data) => {
    if (err) {
        console.error('Error tring to delete item:' + err);
        callback(err, null); // error
    } else if (!data.Items || data.Items.length == 0) {
        console.info(JSON.stringify(data));
        callback(null, null); // no items
    } else  {
        console.info(JSON.stringify(data));
        callback(null, data.Items[0].ExposeStartTimestamp);
    }
});

Both prints empty json: {}

score 12 · Accepted Answer · answered Apr 09 '18 at 19:42

12

In order for the deleted data to appear in the response, the request should contain the attribute ReturnValues with value ALL_OLD.

var params = {
    TableName: 'TableName',
    Key: {
        HouseId: houseId
    },
    ReturnValues: 'ALL_OLD'
};

answered Apr 09 '18 at 19:42

SagiLow

5,721
9
60
115

3

I'd hate to think what would happen if they showed that in the example... – piisexactly3 Feb 12 '19 at 19:52
That comment made me laugh :-) – ChrisInCambo Mar 12 '21 at 18:38
Sagilow - have you face any issue like after deleting item in response it return null - In my case it is returning null randomly – koutuk Oct 15 '21 at 09:21

Empty data object when deleting item from dynamodb

1 Answers1