Module 11: HTTP

Question 1

HTTP Import

Answer 1

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

Question 2

HTTP Configure

Answer 2

imports: [HttpClientModule],
constructor( private http: HttpClient) { }

Question 3

HTTP Use

Answer 3

this.http.get(url).subscribe((res) => {
this.students = res;
this.sArray = this.students.student;
});

Question 4

What is the role of the HttpClient service in Angular?

Answer 4

The HttpClient service is used to make HTTP requests from an Angular application to interact with backend APIs, enabling data retrieval, submission, and communication with external servers.

Question 5

What lifecycle hook would you typically use to initiate an HTTP request when a component loads, and why?

Answer 5

The ngOnInit() lifecycle hook is typically used to initiate an HTTP request when a component loads because it is called after the component’s initialization, ensuring that all required data bindings are set up before the request is made.