What is HttpClient, and what are the advantages of it?

Most front-end applications use either XMLHttpRequest interface or the fetch() API to communicate with backend services over HTTP protocol. For the same purpose, Angular provides a simplified client HTTP API known as HttpClient. This is based on top of XMLHttpRequest interface. This HttpClient is available in the @angular/common/http package, which you can import in your root module as follows:

  1. import { HttpClientModule } from ‘@angular/common/http’;  

Following are some of the crucial advantages of HttpClient:

  • HttpClient contains testability features.
  • It provides typed request and response objects.
  • It can intercept requests and responses.
  • It supports Observalbe APIs.
  • HttpClient also supports streamlined error handling.