Angular HTTP GET Example using HttpClient

Angular is a powerful and popular front-end framework that allows developers to create dynamic and interactive web applications. One of the most common tasks that developers need to perform in their applications is making HTTP requests to external APIs. In this article, we will show you how to perform an HTTP GET request using Angular’s HttpClient module.

Step 1: Import the HttpClient module

In order to use HttpClient, you need to import it into your Angular module. You can do this by adding the following import statement to your module file:

import { HttpClient } from ‘@angular/common/http’;

Step 2: Inject HttpClient into your service

Next, you need to inject HttpClient into your service. You can do this by adding it to the constructor of your service:

constructor(private http: HttpClient) {}

Step 3: Make an HTTP GET request

Once you have imported HttpClient and injected it into your service, you can use it to make HTTP requests. Here is an example of how to make an HTTP GET request using HttpClient:

getUsers() {
return this.http.get(‘/api/users’);

In this example, we are making a GET request to the API endpoint `/api/users`. The `getUsers` method returns an Observable, which we can subscribe to in our component to get the data.

Step 4: Subscribe to the Observable

To get the data from the HTTP response, you need to subscribe to the Observable that is returned by the `getUsers` method. Here is an example of how to do that:

(data) => {
(error) => {

In this example, we are subscribing to the Observable returned by the `getUsers` method. When the data is returned, we log it to the console. If there is an error, we log the error to the console as well.


What is HttpClient?

HttpClient is a module in Angular that allows you to make HTTP requests to external APIs. It provides a simple and consistent API for making HTTP requests, as well as features such as request and response interceptors, error handling, and more.

What is an Observable?

An Observable is a powerful feature of Angular that provides a way to handle asynchronous data streams. It allows you to subscribe to a stream of data and receive notifications when new data is available. Observables are used extensively in Angular for making HTTP requests, handling user input, and more.

What is a service in Angular?

A service in Angular is a class that provides functionality to other parts of your application. It is typically used to encapsulate business logic, data access, and other functions that need to be shared across multiple components. Services are injected into components and other services using Angular’s dependency injection system.

What is dependency injection in Angular?

Dependency injection is a design pattern in software engineering that allows objects to be created and managed by a framework. In Angular, it is used to provide dependencies to components and services. By using the dependency injection system, you can easily build modular and maintainable applications that can be easily tested and scaled.

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