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alex-samborskiy/get_last_item.js

Created May 30, 2019 08:39
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[DynamoDB get last added item] #DynamoDB
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get_last_item.js
const params = {
TableName: TASKS_TABLE_NAME,
KeyConditionExpression: '#account_id = :account_id and begins_with(#sort_key, :sort_key)',
ExpressionAttributeNames: {
'#account_id': 'account_id',
'#sort_key': 'sort_key'
},
ExpressionAttributeValues: {
':account_id': `account_id=${accountId}`,
':sort_key': `changelog#${taskSortKey}`
},
Limit: 1,
ScanIndexForward: false
};
const {Items} = await ddb.query(params).promise();
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