Real-Time Phoenix: Build Highly Scalable Systems with Channels

Cover
Table of Contents
Acknowledgments
Introduction
	Who Should Read This Book?
	About This Book
	About the Code
	Online Resources
1. Real-Time is Now
	The Case for Real-Time Systems
	The Layers of a Real-Time System
	Types of Scalability
	Achieving Real-Time in Elixir
	Building Real-Time Systems
	Wrapping Up
Part I—Powering Real-Time Applications with Phoenix
	2. Connect a Simple WebSocket
		Why WebSockets?
		Connecting our First WebSocket
		WebSocket Protocol
		Long Polling, a Real-Time Alternative
		WebSockets and Phoenix Channels
		Wrapping Up
	3. First Steps with Phoenix Channels
		What are Phoenix Channels?
		Understanding Channel Structure
		PubSub
		Send and Receive Messages
		Channel Clients
		Wrapping Up
	4. Restrict Socket and Channel Access
		Why Restrict Access?
		Add Authentication to Sockets
		Add Authorization to Channels
		Use Authentication from JavaScript
		When to Write a New Socket
		Wrapping Up
	5. Dive Deep into Phoenix Channels
		Design for Unreliable Connections
		Use Channels in a Cluster
		Customize Channel Behavior
		Write Tests
		Wrapping Up
	6. Avoid Performance Pitfalls
		Measure Everything
		Keep Your Channels Asynchronous
		Build a Scalable Data Pipeline
		Wrapping Up
Part II—Building a Real-Time Application
	7. Build a Real-Time Sneaker Store
		From Product Requirements to a Plan
		Set Up the Project
		Render Real-Time HTML with Channels
		Update a Client with Real-Time Data
		Run Multiple Servers
		Wrapping Up
	8. Break Your Application with Acceptance Tests
		The Power of Acceptance Testing
		Break Your App Like a User
		Break Your App Like a Server
		Automate Acceptance Tests With Hound
		Wrapping Up
	9. Build a Real-Time Shopping Cart
		Plan Your Shopping Cart
		Scaffold Your Shopping Cart Channel
		Build Your Shopping Cart Channel
		Add Real-Time Out-Of-Stock Alerts
		Acceptance Test the Shopping Cart
		Wrapping Up
	10. Track Connected Carts with Presence
		Plan Your Admin Dashboard
		On Track with Phoenix Tracker
		Use Tracker in an Application
		Phoenix Tracker Versus Presence
		Scaffold the Admin Dashboard
		Track Shopping Carts in Real-Time
		Assemble the Admin Dashboard
		Load Test the Admin Dashboard
		Wrapping Up
Part III—Bringing Real-Time Applications to Production
	11. Deploy Your Application to Production
		The Lay of the Land
		Achieve Scalability with Load Balancing
		Push New Code Safely
		Cluster Your BEAM Nodes Together
		Advanced Phoenix Channel Configuration
		Wrapping Up
	12. Manage Real-Time Resources
		Getting Comfortable with Elixir’s Scheduler
		Manage Your Application’s Memory Effectively
		Inspect a Running Application
		Wrapping Up
Part IV—Exploring Front-End Technologies
	13. Hands-On with Phoenix LiveView
		Getting Started with LiveView
		Build a LiveView Product Page
		Write Tests for a LiveView
		Wrapping Up
	14. Single-Page Apps with React
		Manage Channel State in React
		Write Channels as Components
		Hands-On with React
		React Native Channels
		Wrapping Up
		The End of Our Journey
Bibliography
Index
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