Integrate Angular 10 and SpringBoot RestAPIs Example
angular 10
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loveprogramming viết ngày 05/03/2021

[no_toc]In the tutorial, we show you how to integrate Angular 10 with SpringBoot RestAPI for development using SpringToolSuite IDE.

  • Setup Nodejs and Angular CLI
  • Create simple Springboot RestAPIs
  • Setup Angular 10 project
  • Import Angular 10 to SpringToolSuite
  • Integrate SpringBoot RestAPI with Angular 10

Related posts:


  • Node.js
  • Angular 10
  • SpringBoot 2.x
  • SpringToolSuite

    Goal - Integrate Angular 10 with SpringBoot RestAPI

  • We create an Angular 10 client & SpringBoot RestAPI as below structure:

Angular 10:


SpringBoot project:


Use Angular 10 client to call Spring RestAPI, we get:


Deploy Angular 10 production-build with Spring-Boot project, We get:


Setup Node.js

Firstly, checking whether or not you have ‘Node.js‘ installed, by command: node -v & npm -v.
If the command goes unrecognized, we must install 'NodeJS'.

-> Go to: Download Node.js installer, the tutorial uses version: 10.4.0 Current. We got a ‘node-v10.15.3-x64.msi‘ file, double click on it and follow the guides to setup Node.js, successfully result:



– Open cmd, checking Node.js by commandline: node -v & npm -v:

C:\Users\Administrator>node -v & npm -v

Setup Angular 10 CLI - Integrate Angular 10 with SpringBoot RestAPI

  • Using commandline npm install -g @angular/cli@v8.0.0-rc.4, then checking Angular-CLI after setup by commandline ng -v:


Implement SpringBoot RestAPI project

– Using SpringToolSuite, create a simple SpringBoot 2.0 web-application, dependencies:

  • Implement a RestAPI controller:

package com.grokonez.restapis.controller;

import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RestController;

public class RestApiController {

    public String hi() {
        return "Hello world! >>> Message from";

Setup Angular 10 Project

  • Location of the SpringBoot project at: "C:\Users\Administrator\Documents\workspace-spring-tool-suite-4-4.1.2.RELEASE\SpringBootRestAPIs"

-> Now, open cmd, cd to workspace: "C:\Users\Administrator\Documents\workspace-spring-tool-suite-4-4.1.2.RELEASE".

– Create a new Angular 10 project by commandline: ng new angular8-client.


  • Run angular8-client project by cmd npm start, results:



Import Angular 10 to SpringBoot project

  • Open SpringToolSuite, go to ‘Import -> General -> Projects’ from ‘Folder or Archieve’, press ‘Next’: Press ‘Finish’, angular8-client is imported:


To clean the sourcecode in STS, we need to remove node_modules by following the steps:
– Right click on ‘angular8-client’ project, choose Properties, then choose: ‘Resource -> Resource Filter’.
– Press ‘Add Filter…’, choose ‘Filter Type: Exclude all’, Applies to: ‘Files and folders’, and check ‘All children (recursive)’, with ‘File and Folder Atributes’, we specify ‘node_modules’:


Press ‘OK’. Then press ‘Apply’, result:


-> Now ‘node_modules’ is already removed from the SpringToolSuite.

Modify Angular 10 project

  • Open ‘/angular8-client/src/app/app.component.css’, edit as below:
h1 {
  color: blue;
  font-size: 150%;
  • Open ‘/angular8-client/src/app/app.component.html’, edit:
<!--The content below is only a placeholder and can be replaced.-->
<div style="text-align:center">
    Welcome to {{ title }}!
  • Open ‘/angular8-client/src/app/app.component.ts’, edit:
import { Component } from '@angular/core';

  selector: 'app-root',
  templateUrl: './app.component.html',
  styleUrls: ['./app.component.css']
export class AppComponent {
  title = 'angular8-client with';

Right click on ‘angular8-client’ project, choose ‘Show in Local Terminal -> Terminal’. Launch ‘angular8-client’ project as cmd: npm start.


Integrate SpringBoot RestAPI with Angular 10

Angular8-Client and SpringBoot server work independently on ports 4200 and 8080. Goal of below integration: the client at 4200 will proxy any /api requests to the SpringBoot server at port 8080.

Step to do:
– Create a file proxy.conf.json under project angular8-client folder with content:

  "/api": {
    "target": "http://localhost:8080",
    "secure": false

– Edit package.json file for start script:

"scripts": {
    "ng": "ng",
    "start": "ng serve --proxy-config proxy.conf.json",
    "build": "ng build",
    "test": "ng test",
    "lint": "ng lint",
    "e2e": "ng e2e"

– Build and run the SpringBoot project at port 8080. And restart angular8-client at port 4200.

Make a request http://localhost:4200/api/hi -> result:


Now deploy Angular 10 with Spring Boot,

Steps ->

  • Build ‘angular8-client’ with command ng build --prod:


Result is a ‘dist’ folder:


We have 2 approaches to deployment Spring Boot RestAPIs with angular8-client:
– Manually copy all files from ‘dist’ folder to ‘/src/main/resources/static’ folder of SpringBoot server project.
– Using Maven plugin to copy all files from ‘dist’ folder to ‘/src/main/resources/static’ folder of SpringBoot server project.

                <outputDirectory>${basedir}/target/classes/static/</outputDirectory >
                        <directory>${basedir}/../angular8-client/dist/angular6-client</directory >

Now build and run the SpringBoot server again with commands:
– Build: mvn clean install
– Run: mvn spring-boot:run

Then make some requests:
http://localhost:8080, result:


– Make request: http://localhost:8080/api/hi, result:


Done! Now you can start to develop Angular 10 with SpringBoot & SpringToolSuite!


  • angular8-client
  • SpringBootRestAPIs

    Conclusion - Angular 10 SpringBoot Integration

  • You had learned how to integrate Angular 10 with SpringBoot project:
    • Create an Angular 10 project
    • Edit Css, HTML of Angular 10
    • Integrate SpringBoot with Angular 10 production build and using proxy file

Happy Learning! Thank you very much!

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