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Learning TypeScript 2.x - Second Edition
book

Learning TypeScript 2.x - Second Edition

by Remo H. Jansen
April 2018
Beginner content levelBeginner
536 pages
13h 21m
English
Packt Publishing
Content preview from Learning TypeScript 2.x - Second Edition

Working with services

In Angular, it is a common practice to use a service to interact with a REST API or with other resources, such as the localStorage API. The class below defines a service named MovieService, which can be used to send HTTP requests to the backend Node.js application.

A service is just a class, and it doesn't require any special decorators. However, the following code snippet uses the @Injectable decorator because it is going to be injected into the MovieComponent. We will learn more about dependency injection later, in the Dependency injection in Angular section.

The following methods perform some HTTP requests to the server using the Fetch API. There is a method to fetch all movies from the movies REST API:

import { Injectable ...
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Publisher Resources

ISBN: 9781788391474Supplemental Content