Book Image

DynamoDB Cookbook

By : Tanmay Deshpande
Book Image

DynamoDB Cookbook

By: Tanmay Deshpande

Overview of this book

Table of Contents (18 chapters)
DynamoDB Cookbook
Credits
About the Author
Acknowledgments
About the Reviewers
www.PacktPub.com
Preface
Index

Batch write operations using the AWS SDK for Java


Let's understand how to put or delete multiple items from the DynamoDB table using the AWS SDK for Java.

Getting ready

To perform this operation, you can use the IDE of your choice.

How to do it…

Let's try to understand how to put/delete items from the DynamoDB table using Java:

  1. Create an instance of the DynamoDB class and initialize it with the desired AWS region and credentials:

    AmazonDynamoDBClient client = new AmazonDynamoDBClient(new ProfileCredentialsProvider());
        client.setRegion(Region.getRegion(Regions.US_EAST_1));
    DynamoDB dynamoDB = new DynamoDB(client);
  2. Create instance of TableWriteItems and specify if you wish to put or delete items from the DynamoDB table:

    TableWriteItems productItems = new TableWriteItems("productTable")
        .withItemsToPut(
            new Item().withPrimaryKey("id", 40, "type", "book")
                .withString("title", "DynamoDB Cookbook"))
            .withPrimaryKeysToDelete(
                new PrimaryKey("id", 10, "type...