Gain insights into state management in Angular with NgRx. Learn to use store, actions, reducers, selectors, handle side effects, and write unit tests for scalable applications.

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This course is designed to teach you how to manage states in Angular using the powerful NgRx library.

You’ll learn the fundamentals of state management and how it can be implemented in an Angular application using NgRx. Next, you’ll learn how to use the NgRx store, actions, reducers, and selectors to manage the application states and handle complex data. You’ll also learn how to handle side effects and asynchronous operations in an Angular application.

Throughout the course, you’ll gain hands-on experience in implementing state management using interactive projects. You’ll learn best practices and design patterns for state management in Angular and how to structure the state of an application using NgRx. Additionally, you’ll learn how to write unit test cases for NgRx features.

By the end of the course, you’ll be able to implement and debug states in an Angular application. You’ll be able to create more scalable, maintainable, and testable Angular applications that can handle complex states and data.

Mastering State Management with Angular and NgRx

## Introduction


In our application, when the Angular services return an error response, the NgRx effects dispatch the `getErrorAction`.

Since we've already learned how to define an NgRx action, here is a great opportunity to practice.

## Instructions


Consider the following instructions while writing your code:

- Define the action in the `src/app/products/state/products.actions.ts` file.

- The name of the action should be `getErrorAction`.

- The `type` of the action should be `[Products] Load Products Error`.

- Since this action won't handle data, don't pass anything as its `props`.

- Define a new `on` handler function for the `getErrorAction` in the `src/app/products/state/products.reducers.ts` file.

> **Note:** Although you can access the solution by clicking the "Show Solution" button, try to solve this on your own first.

# Introduction


In our application, when the Angular services return an error response, the NgRx effects dispatch the `getErrorAction`.

Since we've already learned how to define an NgRx action, here is a great opportunity to practice.

# Instructions


Consider the following instructions while writing your code:

- Define the action in the `src/app/products/state/products.actions.ts` file.

- The name of the action should be `getErrorAction`.

- The `type` of the action should be `[Products] Load Products Error`.

- Since this action won't handle data, don't pass anything as its `props`.

- Define a new `on` handler function for the `getErrorAction` in the `src/app/products/state/products.reducers.ts` file.

> **Note:** Although you can access the solution by clicking the "Show Solution" button, try to solve this on your own first.

Learn how to implement getErrorAction to handle the error response in the NgRx effects.

Getting Started

Redux Fundamentals

NgRx Fundamentals

Implementing NgRx Fundamentals

Debugging NgRx

NgRx with TypeScript

NgRx: Advanced Concepts

NgRx Effects

Build a Trello Clone in Angular using NgRx

Unit Testing NgRx

Implementing Shopping Cart Functionality

Appendix

Conclusion

E-Commerce Store With Stripe API Integration

Implementing the getErrorAction Method

Introduction