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  • Book Overview & Buying Node Web Development - Second Edition
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Node Web Development - Second Edition

Node Web Development - Second Edition

By : David Herron
4 (1)
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Node Web Development - Second Edition

Node Web Development - Second Edition

4 (1)
By: David Herron
Buy this Book

Overview of this book

Table of Contents (17 chapters)
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Node Web Development Second Edition
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Node Web Development Second Edition
Credits
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Credits
About the Author
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About the Author
Acknowledgement
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Acknowledgement
About the Reviewers
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About the Reviewers
www.PacktPub.com
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www.PacktPub.com
Preface
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Preface
Lock Free Chapter
1
About Node
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About Node
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The capabilities of Node
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Why should you use Node?
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What's in a name – Node, Node.js, or Node.JS?
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Summary
2
Setting up Node
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Setting up Node
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System requirements
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Installing Node using package managers
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Installing the StrongLoop Node distribution
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Installing from source on POSIX-like systems
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Installing developer tools on Mac OS X
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Run a few commands; testing the commands
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npm – the Node package manager
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Starting Node servers at system startup
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Summary
3
Node Modules
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Node Modules
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Defining a module
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Node package manager
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Summary
4
HTTP Servers and Clients – A Web Application's First Steps
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HTTP Servers and Clients – A Web Application's First Steps
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Sending and receiving events with EventEmitters
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HTTP server applications
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HTTP Sniffer – listening to the HTTP conversation
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Web application frameworks
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Getting started with Express
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Calculating the Fibonacci sequence with Express
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Making HTTP Client requests
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Calling a REST backend service from an Express application
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Summary
5
Implementing a Simple Express Application
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Implementing a Simple Express Application
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Express and the MVC paradigm
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Creating the Notes application code
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Changing the look of an Express application
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Scaling up and running multiple instances
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Summary
6
Data Storage and Retrieval
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Data Storage and Retrieval
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Asynchronizing the Notes application
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Storing notes in files
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Storing notes with the LevelUP data store
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Storing notes in SQL – SQLite3
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Storing notes the ORM way with the Sequelize module
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Storing notes in MongoDB with Mongoose
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Summary
7
Multiuser Authorization, Deployment, Scaling, and Hosting
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Multiuser Authorization, Deployment, Scaling, and Hosting
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User authentication
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Deploying Notes on Debian
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Scaling to use all cores on multi-core servers
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Deploying Notes on cloud hosting (AppFog)
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Summary
8
Dynamic Interaction between the Client and Server Application
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Dynamic Interaction between the Client and Server Application
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Adding real-time web features to Notes
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Introducing Socket.IO
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Initializing Socket.IO with Express
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Events between the Notes server and client code
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Running the Notes application with Socket.IO
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Sending messages between users
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Summary
9
Unit Testing
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Unit Testing
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Testing asynchronous code
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Assert – the simplest testing methodology
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Testing a model
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Testing router functions
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Making it easy to run the tests
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Summary
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Index
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Index

Chapter 6. Data Storage and Retrieval

In the previous chapter, we built a small and somewhat useful application for storing notes. While the application works reasonably well, it doesn't store those notes anywhere for long term storage. Further, if you run multiple instances of Notes each instance has its own set of notes, making it difficult to scale the application to serve lots of users.

The typical next step in such an application is to introduce a database tier. Databases provide long-term reliable storage, while enabling easy sharing of data between multiple application instances.

In this chapter we will be looking at database support in Node in order to solve these user stories:

  • The user must see the same set of notes for any Notes instance accessed

  • Reliably store notes for long term retrieval

We'll be starting with the Notes application code used in the previous chapter. We used a simple in-memory data model using an array to store the notes. In this chapter we'll add additional model...

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