DynamoDB Cookbook

Book Image

DynamoDB Cookbook

By : Tanmay Deshpande

Book Image

DynamoDB Cookbook

By: Tanmay Deshpande

Overview of this book

DynamoDB Cookbook

DynamoDB Cookbook

Credits

About the Author

About the Author

Acknowledgments

Acknowledgments

About the Reviewers

About the Reviewers

www.PacktPub.com

www.PacktPub.com

Preface

Free Chapter

Taking Your First Steps with DynamoDB

Taking Your First Steps with DynamoDB

Signing up to the DynamoDB console

Creating the DynamoDB table using the console

Loading data into the table using the console

Querying data using the DynamoDB console

Deleting the DynamoDB table using the console

Analyzing DynamoDB metric on CloudWatch

Downloading and setting up DynamoDB Local

Using DynamoDB Local JavaScript Shell

Setting up AWS Command Line Interface for DynamoDB

Setting up the Eclipse IDE

Operating with DynamoDB Tables

Operating with DynamoDB Tables

Creating a table using the AWS SDK for Java

Creating a table using the AWS SDK for .Net

Creating a table using the AWS SDK for PHP

Updating a table using the AWS SDK for Java

Updating a table using the AWS SDK for .Net

Updating a table using the AWS SDK for PHP

Listing tables using the AWS SDK for Java

Listing tables using the AWS SDK for .Net

Listing tables using the AWS SDK for PHP

Deleting a table using the AWS SDK for Java

Deleting a table using the AWS SDK for .Net

Deleting a table using the AWS SDK for PHP

Manipulating DynamoDB Items

Manipulating DynamoDB Items

Putting an item into the DynamoDB table using the AWS SDK for Java

Putting an item into the DynamoDB table using the AWS SDK for .Net

Putting an item into the DynamoDB table using the AWS SDK for PHP

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

Getting an item from the DynamoDB table using the AWS SDK for .Net

Getting an item from the DynamoDB table using the AWS SDK for PHP

Updating an item in the DynamoDB table using the AWS SDK for Java

Updating an item in the DynamoDB table using the AWS SDK for .Net

Updating an item in the DynamoDB table using the AWS SDK for PHP

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

Deleting an item from the DynamoDB table using the AWS SDK for .Net

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

Getting multiple items using the AWS SDK for Java

Getting multiple items using the AWS SDK for .Net

Getting multiple items using the AWS SDK for PHP

Batch write operations using the AWS SDK for Java

Batch write operations using the AWS SDK for .Net

Batch write operations using the AWS SDK for PHP

Managing DynamoDB Indexes

Managing DynamoDB Indexes

Creating a DynamoDB table with a Global Secondary Index using the AWS SDK for Java

Creating a DynamoDB table with a Global Secondary Index using the AWS SDK for .Net

Creating a DynamoDB table with a Global Secondary Index using the AWS SDK for PHP

Querying a Global Secondary Index using the AWS SDK for Java

Querying a Global Secondary Index using the AWS SDK for .Net

Querying a Global Secondary Index using the AWS SDK for PHP

Creating a DynamoDB table with a Local Secondary Index using the AWS SDK for Java

Creating a DynamoDB table with a Local Secondary Index using the AWS SDK for .Net

Creating a DynamoDB table with a Local Secondary Index using the AWS SDK for PHP

Querying a Local Secondary Index using the AWS SDK for Java

Querying a Local Secondary Index using the AWS SDK for .Net

Querying a Local Secondary Index using the AWS SDK for PHP

Using a Global Secondary Index for quick lookups

Exploring Higher Level Programming Interfaces for DynamoDB

Exploring Higher Level Programming Interfaces for DynamoDB

Creating a data model for the DynamoDB item using the object persistence model in Java

Putting items into the DynamoDB table using the object persistence model in Java

Retrieving items from the DynamoDB table using the object persistence model in Java

Creating a custom object for the DynamoDB table using the object persistence model in Java

Querying items from the DynamoDB table using the object persistence model in Java

Scanning items from the DynamoDB table using the object persistence model in Java

Saving items into the DynamoDB table using the object persistence model in .Net

Retrieving items from the DynamoDB table using the object persistence model in .Net

Creating a custom object for the DynamoDB table using the object persistence model in .Net

Querying items from the DynamoDB table using the object persistence model in .Net

Scanning items from the DynamoDB table using the object persistence model in .Net

Securing DynamoDB

Securing DynamoDB

Creating users using AWS IAM

Creating a DynamoDB full access group using AWS IAM

Creating a DynamoDB read-only group using AWS IAM

Validating the DynamoDB access controls using the AWS IAM policy simulator

Creating the custom policy to allow the DynamoDB console access using AWS IAM

Creating a fine-grained access control policy using AWS IAM

Implementing the client-side encryption for the DynamoDB data

Implementing the client-side masking for the DynamoDB data

DynamoDB Best Practices

DynamoDB Best Practices

Using a standalone cache for frequently accessed items

Using the AWS ElastiCache for frequently accessed items

Compressing large data before storing it in DynamoDB

Using AWS S3 for storing large items

Catching DynamoDB errors

Performing auto-retries on DynamoDB errors

Performing atomic transactions on DynamoDB tables

Performing asynchronous requests to DynamoDB

Integrating DynamoDB with other AWS Services

Integrating DynamoDB with other AWS Services

Importing data from AWS S3 to DynamoDB using AWS Data Pipeline

Exporting data from AWS S3 to DynamoDB using AWS Data Pipeline

Accessing the DynamoDB data using AWS EMR

Querying the DynamoDB data using AWS EMR

Performing join operations on the DynamoDB data using AWS EMR

Exporting data to AWS S3 from DynamoDB using AWS EMR

Logging DynamoDB operations using AWS CloudTrail

Exporting the DynamoDB data to AWS Redshift

Importing the DynamoDB data to AWS CloudSearch

Performing a full text search on the DynamoDB data using CloudSearch

Developing Web Applications using DynamoDB

Developing Web Applications using DynamoDB

Performing data modeling and table creations

Developing services for the sign-up activity for web applications

Developing services for the sign-in activity for web applications

Developing services for the Address Book application

Deploying web applications on AWS Elastic Beanstalk

Developing Mobile Applications using DynamoDB

Developing Mobile Applications using DynamoDB

Performing data modeling and table creation

Creating an identity pool using AWS Cognito

Creating the access policy and applying it to the AWS Cognito role

Implementing user registration services

Implementing user login services

Implementing add new contact services

Implementing view contacts services

Index

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Getting multiple items using the AWS SDK for PHP

Let's understand how to get multiple items from the DynamoDB table using the AWS SDK for PHP.

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 get multiple stored items from the DynamoDB table using PHP:

Create an instance of the DynamoDB client and initialize it with the desired AWS region and credentials:
```
$client = DynamoDbClient::factory(array(
    'profile' => 'default',
    'region' => 'us-east-1' 
));
```

Create the batchGetItem request and provide the primary keys of items to be fetched:

$response = $client->batchGetItem(array(
    "RequestItems" => array(
        "Reply" => array(
            "Keys" => array(
                array( 
                    "id"  => array( 'N' => "10"),
                    "type" => array( 'S' => "phone"),
                ),
                array( 
                    "id"  => array( 'S' => "20"),
        ...