NgRx Store Essentials

This lesson introduces you to NgRx, a powerful state management solution for Angular applications.

What is NgRx?

NgRx is inspired by Redux and helps manage state centrally in Angular applications, simplifying data handling across components.

Why Use NgRx?

• Centralized state management
• Clear and predictable data flow
• Easier debugging and testing

Core Concepts

NgRx involves key concepts:

• Store: Holds application state
• Actions: Describe events
• Reducers: Handle state transitions
• Selectors: Retrieve state data

Installing NgRx Store

Install NgRx using npm:

npm install @ngrx/store --save

Creating a Store

Define the store in your application module:

StoreModule.forRoot({ appState: appReducer })

Creating Actions

Actions define events in your application:

export const loadData = createAction('[App] Load Data');

Reducers

Reducers handle state changes by responding to actions and producing new state:

export const appReducer = createReducer(
  initialState,
  on(loadData, state => ({ ...state, loading: true }))
);

Summary

You've learned the essentials of using NgRx Store to manage your app state effectively. Well done!