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DynamoDB Applied Design Patterns
DynamoDB Applied Design Patterns

DynamoDB Applied Design Patterns: Apply efficient DynamoDB design patterns for high performance of applications

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DynamoDB Applied Design Patterns

Chapter 2. DynamoDB Interfaces

There are a number of interfaces available to make user interaction easy and effective. There are four interfaces that are commonly used to interact with DynamoDB:

  • The management console
  • The Eclipse plugin
  • The command-line interface
  • The REST API

As a part of our discussion in this chapter, we will learn about the first three interfaces. We will discuss the fourth interface in detail in Chapter 6, Working with the DynamoDB API.

The management console

The management console is one of the most commonly used interfaces in DynamoDB because of its simplicity of use. There is another reason that the end user will prefer the management console: it doesn't require any software to start with. Just having an Internet connection and a browser is sufficient.

Once you sign up with AWS, just click on Management Console. This will take you to the following page:

The management console

The DynamoDB option is available in the Database section of the management console. We can click on this icon to begin DynamoDB. We will divide this section into two parts. Initially we will discuss how to manage a table and then we will discuss how to manage items using the management console.

Managing the DynamoDB table

Clicking on DynamoDB in the management console for the first time will open a page that consists of three sections:

  • The first section in the top-left corner provides information such as where the tables will be created (this can be changed by clicking...

The Eclipse plugin

Eclipse, being one of the most commonly-used open source integrated development environments (IDEs), provides a plugin to work with DynamoDB. In fact it provides a plugin to work with almost the entire AWS. We will now see how to perform DynamoDB operations such as table creation, index creation, items insertion, and query and scan operations.

First we will begin with setting up the DynamoDB plugin on Eclipse. Open Eclipse and select Install New Software from the Help menu.

The Eclipse plugin

In the following page, we need to enter http://aws.amazon.com/eclipse/ and hit Enter; this will display all the available plugins for AWS. You can either install everything or only the necessary components (it's better to install everything because there will be dependency between these plugins).

The Eclipse plugin

The following page will display the components that will be installed on Eclipse. Confirm them and proceed.

The Eclipse plugin

The following page will show the invalid components (AWS SDK for Android in the following screenshot...

The command-line interface

You can't beat classics, can you? Even though the previous two interfaces provide easy usage of DynamoDB, the command-line interface provides good flexibility and it makes life simple for advanced programmers by reducing the number of clicks; instead of using the management console or the Eclipse plugin for DynamoDB interaction, we can write some commands and program it to do certain redundant jobs.

To get the AWS CLI, go to the link shown in the following screenshot:

The command-line interface

Visit https://s3.amazonaws.com/aws-cli/AWSCLI64.msi to download the AWS CLI setup. Once the installation is complete, go to the path in the command prompt (the path might differ based on the platform, in my case the path is C:\Program Files\Amazon\AWSCLI). Run the aws configure command to configure CLI with our AWS credentials.

Hitting Enter will ask for the following four options:

The command-line interface

If we feel that any of the parameters have changed at all, type in aws configure again and provide the necessary details...

Summary

In this chapter we gained an insight into accessing DynamoDB in the management console and command line. We also took a look at the Eclipse plugin.

The chapter started with the DynamoDB table and item operations using the management console and we saw how to create a table with the necessary primary key and secondary index. Then we also discussed how to work on a table item. After that we configured our Eclipse IDE with the AWS plugin, created a table with secondary indexes, and then inserted a few items into the table. We then discussed how to make use of the table's primary key attributes and secondary index key attributes while querying that DynamoDB table. We also discussed how to change the region (or location) in which DynamoDB has to perform its operation. We saw how to download the AWS command-line tool and its configuration setup in our local system. Then we executed a few commands through the command-line interface, which performed the same DynamoDB operations as performed...

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Description

If you are an intermediate to advanced DynamoDB developer looking to learn the best practices associated with efficient data modeling, this book is for you.

What you will learn

  • Understand the concepts of data modeling including tables, items, attributes, primary keys, indexes, and design patterns
  • Access DynamoDB in the management console, command line, and the Eclipse plugin
  • Get acquainted with DynamoDB Local and CLI commands and use them from a developer/DBA perspective
  • Discover what global and local secondary indexes are and their importance in DynamoDB
  • Automatically shard your NoSQL databases based on SLA
  • Conduct query and scan operations on DynamoDB tables to get efficient results
  • Call APIs from applications to DynamoDB and retrieve data in appropriate formats for other applications
  • Work closely with AWS services such as Redshift, S3, and MapReduce so they collaborate with DynamoDB efficiently
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Publication date : Sep 23, 2014
Length: 202 pages
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Language : English
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Table of Contents

11 Chapters
1. Data Modeling with DynamoDB Chevron down icon Chevron up icon
2. DynamoDB Interfaces Chevron down icon Chevron up icon
3. Tools and Libraries of AWS DynamoDB Chevron down icon Chevron up icon
4. Working with Secondary Indexes Chevron down icon Chevron up icon
5. Query and Scan Operations in DynamoDB Chevron down icon Chevron up icon
6. Working with the DynamoDB API Chevron down icon Chevron up icon
7. Distributed Locking with DynamoDB Chevron down icon Chevron up icon
8. DynamoDB with Redshift, Data Pipeline, and MapReduce Chevron down icon Chevron up icon
9. DynamoDB – Best Practices Chevron down icon Chevron up icon
A. Comparing DynamoDB Chevron down icon Chevron up icon
Index Chevron down icon Chevron up icon

Customer reviews

Rating distribution
Full star icon Full star icon Full star icon Empty star icon Empty star icon 3
(2 Ratings)
5 star 50%
4 star 0%
3 star 0%
2 star 0%
1 star 50%
Mac Jun 07, 2017
Full star icon Full star icon Full star icon Full star icon Full star icon 5
Worth reading to learn the concepts and patterns in NO-SQL databases.
Amazon Verified review Amazon
Leon May 21, 2015
Full star icon Empty star icon Empty star icon Empty star icon Empty star icon 1
Had a quick look at this book at safaribooksonline. This book is a joke! Seems an India student copied it from DynamoDB developer guide. What the hell is the content related to design patterns!
Amazon Verified review Amazon
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