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DynamoDB Cookbook

DynamoDB Cookbook

By : Deshpande
3.9 (8)
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DynamoDB Cookbook

DynamoDB Cookbook

3.9 (8)
By: Deshpande

Overview of this book

AWS DynamoDB is an excellent example of a production-ready NoSQL database. In recent years, DynamoDB has been able to attract many customers because of its features like high-availability, reliability and infinite scalability. DynamoDB can be easily integrated with massive data crunching tools like Hadoop /EMR, which is an essential part of this data-driven world and hence it is widely accepted. The cost and time-efficient design makes DynamoDB stand out amongst its peers. The design of DynamoDB is so neat and clean that it has inspired many NoSQL databases to simply follow it. This book will get your hands on some engineering best practices DynamoDB engineers use, which can be used in your day-to-day life to build robust and scalable applications. You will start by operating with DynamoDB tables and learn to manipulate items and manage indexes. You will also discover how to easily integrate applications with other AWS services like EMR, S3, CloudSearch, RedShift etc. A couple of chapters talk in detail about how to use DynamoDB as a backend database and hosting it on AWS ElasticBean. This book will also focus on security measures of DynamoDB as well by providing techniques on data encryption, masking etc. By the end of the book you’ll be adroit in designing web and mobile applications using DynamoDB and host it on cloud.
Table of Contents (12 chapters)
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11
Index

Creating an identity pool using AWS Cognito

In the previous recipe, we created DynamoDB tables based on the need. Now, it's time to think of securely accessing DynamoDB from the Android app. Unlike what we did for web apps, here we cannot distribute the AWS secret key and access key with each app, as we need to distribute the app to a number of users. If we embed the access and secret keys in the Android application package (APK), then it will make our AWS environment vulnerable.

So, in order to solve this problem, AWS has launched a service called AWS Cognito, which is a great tool to provide limited/required access to app users. In this recipe, we are going to see how to use Cognito to create an identity pool. You can read about AWS Cognito at https://aws.amazon.com/cognito/.

Getting ready

To get started with this recipe, you need to know how to use the AWS console.

How to do it…

Let's create an identity pool using AWS Cognito:

  1. Log in to the AWS web console and navigate to...

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