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Fetching Data Through HTTP

Explore how to integrate Angular's HTTP client to fetch live data from an external API. Learn to modify services to use HttpClient, apply RxJS operators for data transformation, and display product data dynamically in components. This lesson equips you with skills to handle asynchronous data and connect Angular apps to real APIs effectively.

We'll cover the following...

The product list component uses the products service to fetch and display product data. The data is currently hardcoded into the products property of the ProductsService class.

Setting up HTTP client and API integration

We will modify our Angular application to work with live data from the Fake Store API:

  1. Open the app.module.ts file and import the Angular module of the HTTP client:

TypeScript 4.9.5
import { NgModule } from '@angular/core';
import { BrowserModule } from '@angular/platform-browser';
import { HttpClientModule } from '@angular/common/http';
import { AppComponent } from './app.component';
import { ProductsModule } from './products/products.module';
@NgModule({
    declarations: [
        AppComponent
    ],
    imports: [
        BrowserModule,
        HttpClientModule,
        ProductsModule
    ],
    providers: [],
    bootstrap: [AppComponent]
})
export class AppModule { }

  1. Now, open the products.service.ts file and import ...