DynamoDB: Get Last 10 Records (Guide w/ Code Examples)

To retrieve the last 10 records from a DynamoDB table using the JavaScript SDK, you can use the query or scan methods with the following parameters:

• **TableName**: Name of the table you want to query
• **Limit**: Maximum number of records you want to retrieve (in this case, 10)
• **ScanIndexForward** : false ( To get the last 10 items )
• **KeyConditionExpression** : 'partitionKey = :partitionKey'
• **ExpressionAttributeValues** : {':partitionKey': partitionKeyValue }

var AWS = require('aws-sdk');
var ddb = new AWS.DynamoDB({apiVersion: '2012-08-10'});

var params = {
  TableName: 'myTable',
  Limit: 10,
  ScanIndexForward: false,
  KeyConditionExpression: 'partitionKey = :partitionKey',
  ExpressionAttributeValues: {
    ':partitionKey': partitionKeyValue
  }
};

ddb.query(params, function(err, data) {
  if (err) {
    console.log("Error", err);
  } else {
    console.log("Success", data.Items);
  }
});