Sample Application for the Blog post Angular HTTP Client Quickstart Guide
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Angular HTTP Quickstart Guide

This repository contains a sample Angular HTTP application that uses the latest Angular HTTP Client, originally released in Angular 4.3 (import barrel @angular/common/http).

This is the support code for the Angular HTTP QuickStart blog post.

This post will be a quick practical guide for the Angular HTTP Client module. We will cover how to do HTTP in Angular in general. We will be using the new @angular/common/http module, but a good part of this post is also applicable to the previous @angular/http module.

We will provide some examples of how to use this module to implement some of the most common uses that you will find during development.

Table Of Contents

  • Introduction to the new HTTP Client module
  • Example of an HTTP GET
  • Improved Type Safety
  • HTTP Request Parameters (Immutability-based API)
  • HTTP Headers (Immutability-based API)
  • Some REST Guidelines (specific to RESTful JSON) for using the multiple HTTP methods
  • The use of Generics in the new API enabling more type safe code
  • How To Avoid Duplicate HTTP Requests
  • How to do HTTP Requests in Parallel, and combine the Result
  • How to do HTTP Requests in sequence, and use the result of the first request to create the second request
  • How To get the results of two requests made in sequence
  • HTTP error handling
  • HTTP Interceptors
  • Progress Events
  • Summary