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Angular 8 HttpClient & Http Tutorial – Build, Consume RESTful API

singhdigamber profile image Digamber Rawat Originally published at positronx.io on ・2 min read

Angular 8 HttpClient Tutorial

Angular 8 HttpClient & Http tutorial is going to be discussed in this blog today. We’ll learn to create and consume RESTful APIs in Angular 8 project. To manage the data on the remote server, we make GET, POST, PUT and Delete using HttpClient API. We are required to import and setup HttpClient service in Angular 8 project to consume REST APIs.

To work with HttpClient service in Angular, you need to import the HttpClientModule in app.module.ts file. Then inject HttpClient service in constructor method after that you can hit the remote server via HTTP’s POST, GET, PUT and DELETE methods.

HttpClient in Angular 8

HttpClient API service is used to make communication between front-end web apps with backend services. This communication is done over HTTP protocol. Angular 8 HttpClient service makes the communication with remote server very easy. It needs to be imported via @angular/common/http package.

Benefits of HttpClient Service

  • Easy Testing
  • Typed Request & Response Objects
  • Request Interception
  • Response Interception
  • APIs Observable Support
  • Easy Error Handling

What Does Angular.io say About HttpClient?

“HttpClient is available as an injectable class, with methods to perform HTTP requests. Each request method has multiple signatures, and the return type varies based on the signature that is called (mainly the values of observe and responseType).”

Angular 8 HttpClient Methods

  • request()
  • delete()
  • get()
  • patch()
  • post()
  • put()
  • head()
  • jsonp()
  • options()

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singhdigamber profile

Digamber Rawat

@singhdigamber

I am passionate about solving real-world problems through algorithms and functional design. I love to create modern web and mobile apps using React JS, Angular 2+, Firebase, and JavaScript.

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