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Tutorials > Angular > Angular HttpClient

Angular HttpClient

The Angular HttpClient is a powerful tool for making HTTP requests in an Angular application. It allows you to send HTTP requests, such as GET, POST, PUT, and DELETE, to a server and handle the response.

Here is an example of how to use the HttpClient to make a GET request to retrieve data from a server:

import { HttpClient } from '@angular/common/http';

...

constructor(private http: HttpClient) {}

getData() {
  this.http.get('https://api.example.com/data').subscribe(data => {
    console.log(data);
  });
}

In this example, we are injecting the HttpClient into the component using the constructor. We then use the get method to send a GET request to the server and retrieve the data. The subscribe method is used to handle the response from the server and log the data to the console.

Here is an example of how to use the HttpClient to make a POST request to send data to a server:

import { HttpClient } from '@angular/common/http';

...

constructor(private http: HttpClient) {}

saveData(data) {
  this.http.post('https://api.example.com/data', data).subscribe(response => {
    console.log(response);
  });
}

In this example, we are using the post method to send a POST request to the server with the data to be saved. The subscribe method is used to handle the response from the server and log it to the console.

The Angular HttpClient is flexible and provides many features for making HTTP requests, such as handling errors, adding headers, and transforming data. You can also use the HttpClient to handle different types of responses, such as JSON, text, and binary data, depending on your requirements.



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