Batch Write Using DynamoDB Mapper (Guide w/ Code Examples)

Rafal Wilinski

Provided by Rafal Wilinski

With the batch write operations, you can save multiple items to the DynamoDB table, by passing a list of items to the batchSave method of the DynamoDBMapper class. This method can be used to save new items and update existing items, depending on the primary key values provided. You might use the DynamoDBMapper's batchSave method to write multiple items in a single request in Java.

import com.amazonaws.services.dynamodbv2.datamodeling.DynamoDBMapper; import com.amazonaws.services.dynamodbv2.datamodeling.DynamoDBMapperConfig; public class BatchWriteExample { public static void main(String[] args) { // Create a new DynamoDBMapper AmazonDynamoDB client = AmazonDynamoDBClientBuilder.standard().build(); DynamoDBMapper mapper = new DynamoDBMapper(client); // Define a list of items to write List<Product> items = new ArrayList<>(); items.add(new Product("111", "Product 1", 10, 2)); items.add(new Product("222", "Product 2", 20, 4)); items.add(new Product("333", "Product 3", 30, 6)); // Write the items mapper.batchSave(items, DynamoDBMapperConfig.DEFAULT); } }

Better DynamoDB experience.

Try 7-day free trial. No credit card needed.

Product Features

Member Portal
© 2024 Dynobase
Using DynamoDB Console frequently?
Try Dynobase to accelerate your DynamoDB workflow. Start your 7-day free trial today.