Angular 6 HttpClient – Get/Post/Put/Delete requests + SpringBoot RestAPIs

https://grokonez.com/frontend/angular/angular-6/angular-6-httpclient-get-post-put-delete-requests-springboot-restapis-bootstrap-4

Angular provides the HttpClient in @angular/common/http for front-end applications communicate with backend services. In the tutorial, we show how to build an Angular application that uses the HttpClient to make get/post/put/delete requests with Observable apis to SpringBoot RestAPIs.

Related posts:

Technologies

  • Java 1.8
  • Maven 3.3.9
  • Spring Tool Suite – Version 3.9.4.RELEASE
  • Spring Boot: 2.0.3.RELEASE
  • Angular 6
  • RxJS 6
  • Bootstrap 4
  • Visual Studio Code – version 1.24.0

Overview

Goals

We create 2 projects:

  • Angular Client Project:

angular-6-http-client-get-post-put-delete-request + angular-6-project-structure

  • SpringBoot Server Project:

angular-6-http-client-get-post-put-delete-request + spring-boot-rest-apis

Overview

springboot-rest-apis +angular-6-http-client +angular-http-service-architecture

UserCase

  • Retrieve all customers from SpringBoot server:

angular-6-http-client-get-post-put-delete-request + retrieve-all-customer-angular-http-client-get-request

  • Update a customer -> Change the firstname of first customer: 'Joe' to 'Robert'.

angular-6-http-client-get-post-put-delete-request + upadate-joe-to-robert-angular-http-client-update

-> result:

angular-6-http-client-get-post-put-delete-request + press-update-button

  • Delete 'Peter' customer:

angular-6-http-client-get-post-put-delete-request + angular-http-client-delete

  • Add a new customer:

angular-6-http-client-get-post-put-delete-request + angular-http-client-post-a-customer

-> result:

angular-6-http-client-get-post-put-delete-request + angular-http-post-a-customer

  • Check final customer's list:

angular-6-http-client-get-post-put-delete-request + final-check

More at: https://grokonez.com/frontend/angular/angular-6/angular-6-httpclient-get-post-put-delete-requests-springboot-restapis-bootstrap-4

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