Getting Started with the Redux JavaScript Library

Course Agenda

Please note that this list of topics is based on our standard course offering, evolved from typical industry uses and trends. We’ll work with you to tune this course and level of coverage to target the skills you need most.

Getting Started

Redux intro
The single responsibility principle
Why Redux?
Why Redux with React?
Its history and growth
The 4 concepts of Redux
State
Pure functions
Composition
Immutability
The parts of Redux
The big picture of Redux

Creating the store
Installing and including Redux
The createStore() method
The simplest possible store

State and Subscriptions
Single source of truth
Initializing state
What goes in state?
Why subscriptions?
How to subscribe in Redux

Actions and Reducers 101
Actions are objects
The shape of actions
Type and payload
Reducers are functions
Why we have them
The shape of a reducer
Tips in avoiding the worst Redux rookie mistakes

Actions
Action Creators in a React Application
Dispatching Actions
Mapping Actions to prop Names

Advanced Actions
Action constants
Action type enumerations
Action creators
Action creator enumerations

Reducer composition
The problem: complex state => complex reducers
The solution: Create state slices
Creating reducers to handle slices
Combining reducers with Redux's built-in combineReducers
Doing it manually
Why manually is the right way

Redux Middleware
The Open-Closed Principle
Introduction to middleware
The next() function
The required shape of middleware
Middleware's super-powers
Recipes and examples
Why you must register middleware and how to do it

Ajax with Redux
The problem with async calls in Redux
The trick to making a good middleware function
Registering the middleware
Dispatching an Ajax call
Making RESTful API calls
How to process them into Redux and then into React

Redux-thunk (Time permitting)
The need for a thunk
How redux-thunk fits that need
Installing and using redux-thunk properly
Dispatching Ajax calls with redux-thunk