On completion of this course, students will be able to:

• Clearly understand the platform design choices that led to Node.js choosing an event loop and what this means for applications built on that foundation.
• Understand the unique trade-offs present in event-driven programming.
• Create Node.js modules and express code modularity in an application.
• Understand the core flow control patterns in Node.js and know when it is appropriate to use callbacks, event emitters or streams.
• Create and manipulate buffers efficiently.
• Understand how to manage error state and know when a process should exit due to an error.
• Build network applications with Node.js.

Intro to Node.js

• RAM vs. I/O latency
• Blocking vs. Non-Blocking
• Event-driven Programming
• Event Loop
• Blocking The Event Loop
• Node.js Philosophy

Node.js Platform Setup

• Download and Install
• Node REPL
• First Hello World

Modules and npm

• Anatomy of a module
• Private code
• Accessing and using modules
• npm commands
• package.json

The Callback Pattern

• What are callbacks
• Callback-last
• Error-first

Events

• When to use Event Emitters
• Binding Functions to Events
• Event Requests
• Event Listening

Error Handling

• Callbacks: Error-first
• Errors in Event Emitters
• Uncaught Exceptions
• Using Domains

Buffers

• Why Buffers exist
• Creating Buffers
• Reading and Writing Buffers
• Manipulating Buffers

Streams

• What are streams
• Read and Write Stream API
• Flow Control
• Piping
• Duplex Stream
• Transform Stream

Express.js

• Intro and Installing Express.js
• Building a Hello Express application
• Creating routes
• Rendering Layouts
• Using templates
• Adding partials
• Using locals and conditional templates
• Modularizing routes

Socket.io

• Listening for
• Broadcasting
• Answering questions

Connecting to Databases

• No SQL and Document Stores
• Relational DBs
• Configuration and platform setup
• CRUD Operations