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

Deleting an item from the DynamoDB table using the AWS SDK for Java


Let's understand how to delete an item 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 delete a stored item 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. Get the table from which you wish to delete the item:

    Table table = dynamoDB.getTable("productTable");
  3. Invoke the deleteItem method from the Table class by specifying the item's primary key. Here, in our case, we are using the composite hash and range keys, so we will have to mention both of them:

    DeleteItemOutcome outcome = table.deleteItem(new PrimaryKey("id", 10, "type", "phone...