Merge pull request #10603 from saleco/master

BAEL-4842 - Use React and Spring Boot to Build a Simple CRUD App
This commit is contained in:
Greg 2021-04-26 14:22:53 -04:00 committed by GitHub
commit 35cc00b59a
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<module>spring-boot-xml</module>
<module>spring-boot-actuator</module>
<module>spring-boot-data-2</module>
<module>spring-boot-react</module>
</modules>

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### Relevant Articles:

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# binaries
bin/
dist/
lib/
# editors
*.swp
.idea/
.vs/
.vscode/
.DS_Store

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# Getting Started with Create React App
This project was bootstrapped with [Create React App](https://github.com/facebook/create-react-app).
## Available Scripts
In the project directory, you can run:
### `npm start`
Runs the app in the development mode.\
Open [http://localhost:3000](http://localhost:3000) to view it in the browser.
The page will reload if you make edits.\
You will also see any lint errors in the console.
### `npm test`
Launches the test runner in the interactive watch mode.\
See the section about [running tests](https://facebook.github.io/create-react-app/docs/running-tests) for more information.
### `npm run build`
Builds the app for production to the `build` folder.\
It correctly bundles React in production mode and optimizes the build for the best performance.
The build is minified and the filenames include the hashes.\
Your app is ready to be deployed!
See the section about [deployment](https://facebook.github.io/create-react-app/docs/deployment) for more information.
### `npm run eject`
**Note: this is a one-way operation. Once you `eject`, you cant go back!**
If you arent satisfied with the build tool and configuration choices, you can `eject` at any time. This command will remove the single build dependency from your project.
Instead, it will copy all the configuration files and the transitive dependencies (webpack, Babel, ESLint, etc) right into your project so you have full control over them. All of the commands except `eject` will still work, but they will point to the copied scripts so you can tweak them. At this point youre on your own.
You dont have to ever use `eject`. The curated feature set is suitable for small and middle deployments, and you shouldnt feel obligated to use this feature. However we understand that this tool wouldnt be useful if you couldnt customize it when you are ready for it.
## Learn More
You can learn more in the [Create React App documentation](https://facebook.github.io/create-react-app/docs/getting-started).
To learn React, check out the [React documentation](https://reactjs.org/).
### Code Splitting
This section has moved here: [https://facebook.github.io/create-react-app/docs/code-splitting](https://facebook.github.io/create-react-app/docs/code-splitting)
### Analyzing the Bundle Size
This section has moved here: [https://facebook.github.io/create-react-app/docs/analyzing-the-bundle-size](https://facebook.github.io/create-react-app/docs/analyzing-the-bundle-size)
### Making a Progressive Web App
This section has moved here: [https://facebook.github.io/create-react-app/docs/making-a-progressive-web-app](https://facebook.github.io/create-react-app/docs/making-a-progressive-web-app)
### Advanced Configuration
This section has moved here: [https://facebook.github.io/create-react-app/docs/advanced-configuration](https://facebook.github.io/create-react-app/docs/advanced-configuration)
### Deployment
This section has moved here: [https://facebook.github.io/create-react-app/docs/deployment](https://facebook.github.io/create-react-app/docs/deployment)
### `npm run build` fails to minify
This section has moved here: [https://facebook.github.io/create-react-app/docs/troubleshooting#npm-run-build-fails-to-minify](https://facebook.github.io/create-react-app/docs/troubleshooting#npm-run-build-fails-to-minify)

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{
"name": "frontend",
"version": "0.1.0",
"private": true,
"dependencies": {
"@testing-library/jest-dom": "^5.11.10",
"@testing-library/react": "^11.2.5",
"@testing-library/user-event": "^12.8.3",
"bootstrap": "^4.1.3",
"react": "^17.0.2",
"react-cookie": "^3.0.4",
"react-dom": "^17.0.2",
"react-router-dom": "^4.3.1",
"react-scripts": "4.0.3",
"reactstrap": "^6.5.0",
"web-vitals": "^1.1.1"
},
"scripts": {
"start": "react-scripts start",
"build": "react-scripts build",
"test": "react-scripts test",
"eject": "react-scripts eject"
},
"proxy": "http://localhost:8080",
"eslintConfig": {
"extends": [
"react-app",
"react-app/jest"
]
},
"browserslist": {
"production": [
">0.2%",
"not dead",
"not op_mini all"
],
"development": [
"last 1 chrome version",
"last 1 firefox version",
"last 1 safari version"
]
}
}

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<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="utf-8" />
<link rel="icon" href="%PUBLIC_URL%/favicon.ico" />
<meta name="viewport" content="width=device-width, initial-scale=1" />
<meta name="theme-color" content="#000000" />
<meta
name="description"
content="Web site created using create-react-app"
/>
<link rel="apple-touch-icon" href="%PUBLIC_URL%/logo192.png" />
<!--
manifest.json provides metadata used when your web app is installed on a
user's mobile device or desktop. See https://developers.google.com/web/fundamentals/web-app-manifest/
-->
<link rel="manifest" href="%PUBLIC_URL%/manifest.json" />
<!--
Notice the use of %PUBLIC_URL% in the tags above.
It will be replaced with the URL of the `public` folder during the build.
Only files inside the `public` folder can be referenced from the HTML.
Unlike "/favicon.ico" or "favicon.ico", "%PUBLIC_URL%/favicon.ico" will
work correctly both with client-side routing and a non-root public URL.
Learn how to configure a non-root public URL by running `npm run build`.
-->
<title>React App</title>
</head>
<body>
<noscript>You need to enable JavaScript to run this app.</noscript>
<div id="root"></div>
<!--
This HTML file is a template.
If you open it directly in the browser, you will see an empty page.
You can add webfonts, meta tags, or analytics to this file.
The build step will place the bundled scripts into the <body> tag.
To begin the development, run `npm start` or `yarn start`.
To create a production bundle, use `npm run build` or `yarn build`.
-->
</body>
</html>

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{
"short_name": "React App",
"name": "Create React App Sample",
"icons": [
{
"src": "favicon.ico",
"sizes": "64x64 32x32 24x24 16x16",
"type": "image/x-icon"
},
{
"src": "logo192.png",
"type": "image/png",
"sizes": "192x192"
},
{
"src": "logo512.png",
"type": "image/png",
"sizes": "512x512"
}
],
"start_url": ".",
"display": "standalone",
"theme_color": "#000000",
"background_color": "#ffffff"
}

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# https://www.robotstxt.org/robotstxt.html
User-agent: *
Disallow:

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.App {
text-align: center;
}
.App-logo {
height: 40vmin;
pointer-events: none;
}
@media (prefers-reduced-motion: no-preference) {
.App-logo {
animation: App-logo-spin infinite 20s linear;
}
}
.App-header {
background-color: #282c34;
min-height: 100vh;
display: flex;
flex-direction: column;
align-items: center;
justify-content: center;
font-size: calc(10px + 2vmin);
color: white;
}
.App-link {
color: #61dafb;
}
@keyframes App-logo-spin {
from {
transform: rotate(0deg);
}
to {
transform: rotate(360deg);
}
}
.container, .container-fluid {
margin-top: 20px;
}

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import React, { Component } from 'react';
import './App.css';
import Home from './Home';
import { BrowserRouter as Router, Route, Switch } from 'react-router-dom';
import ClientList from './ClientList';
import ClientEdit from "./ClientEdit";
class App extends Component {
render() {
return (
<Router>
<Switch>
<Route path='/' exact={true} component={Home}/>
<Route path='/clients' exact={true} component={ClientList}/>
<Route path='/clients/:id' component={ClientEdit}/>
</Switch>
</Router>
)
}
}
export default App;

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import { render, screen } from '@testing-library/react';
import App from './App';
test('renders learn react link', () => {
render(<App />);
const linkElement = screen.getByText(/Clients/i);
expect(linkElement).toBeInTheDocument();
});

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import React, {Component} from 'react';
import {Navbar, NavbarBrand} from 'reactstrap';
import {Link} from 'react-router-dom';
export default class AppNavbar extends Component {
constructor(props) {
super(props);
this.state = {isOpen: false};
this.toggle = this.toggle.bind(this);
}
toggle() {
this.setState({
isOpen: !this.state.isOpen
});
}
render() {
return <Navbar color="dark" dark expand="md">
<NavbarBrand tag={Link} to="/">Home</NavbarBrand>
</Navbar>;
}
}

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import React, { Component } from 'react';
import { Link, withRouter } from 'react-router-dom';
import { Button, Container, Form, FormGroup, Input, Label } from 'reactstrap';
import AppNavbar from './AppNavbar';
class ClientEdit extends Component {
emptyItem = {
name: '',
email: ''
};
constructor(props) {
super(props);
this.state = {
item: this.emptyItem
};
this.handleChange = this.handleChange.bind(this);
this.handleSubmit = this.handleSubmit.bind(this);
}
async componentDidMount() {
if (this.props.match.params.id !== 'new') {
const client = await (await fetch(`/clients/${this.props.match.params.id}`)).json();
this.setState({item: client});
}
}
handleChange(event) {
const target = event.target;
const value = target.value;
const name = target.name;
let item = {...this.state.item};
item[name] = value;
this.setState({item});
}
async handleSubmit(event) {
event.preventDefault();
const {item} = this.state;
await fetch('/clients' + (item.id ? '/' + item.id : ''), {
method: (item.id) ? 'PUT' : 'POST',
headers: {
'Accept': 'application/json',
'Content-Type': 'application/json'
},
body: JSON.stringify(item),
});
this.props.history.push('/clients');
}
render() {
const {item} = this.state;
const title = <h2>{item.id ? 'Edit Client' : 'Add Client'}</h2>;
return <div>
<AppNavbar/>
<Container>
{title}
<Form onSubmit={this.handleSubmit}>
<FormGroup>
<Label for="name">Name</Label>
<Input type="text" name="name" id="name" value={item.name || ''}
onChange={this.handleChange} autoComplete="name"/>
</FormGroup>
<FormGroup>
<Label for="email">Email</Label>
<Input type="text" name="email" id="email" value={item.email || ''}
onChange={this.handleChange} autoComplete="email"/>
</FormGroup>
<FormGroup>
<Button color="primary" type="submit">Save</Button>{' '}
<Button color="secondary" tag={Link} to="/clients">Cancel</Button>
</FormGroup>
</Form>
</Container>
</div>
}
}
export default withRouter(ClientEdit);

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import React, { Component } from 'react';
import { Button, ButtonGroup, Container, Table } from 'reactstrap';
import AppNavbar from './AppNavbar';
import { Link } from 'react-router-dom';
class ClientList extends Component {
constructor(props) {
super(props);
this.state = {clients: []};
this.remove = this.remove.bind(this);
}
componentDidMount() {
fetch('/clients')
.then(response => response.json())
.then(data => this.setState({clients: data}));
}
async remove(id) {
await fetch(`/clients/${id}`, {
method: 'DELETE',
headers: {
'Accept': 'application/json',
'Content-Type': 'application/json'
}
}).then(() => {
let updatedClients = [...this.state.clients].filter(i => i.id !== id);
this.setState({clients: updatedClients});
});
}
render() {
const {clients} = this.state;
const clientList = clients.map(client => {
return <tr key={client.id}>
<td style={{whiteSpace: 'nowrap'}}>{client.name}</td>
<td>{client.email}</td>
<td>
<ButtonGroup>
<Button size="sm" color="primary" tag={Link} to={"/clients/" + client.id}>Edit</Button>
<Button size="sm" color="danger" onClick={() => this.remove(client.id)}>Delete</Button>
</ButtonGroup>
</td>
</tr>
});
return (
<div>
<AppNavbar/>
<Container fluid>
<div className="float-right">
<Button color="success" tag={Link} to="/clients/new">Add Client</Button>
</div>
<h3>Clients</h3>
<Table className="mt-4">
<thead>
<tr>
<th width="30%">Name</th>
<th width="30%">Email</th>
<th width="40%">Actions</th>
</tr>
</thead>
<tbody>
{clientList}
</tbody>
</Table>
</Container>
</div>
);
}
}
export default ClientList;

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import React, { Component } from 'react';
import './App.css';
import AppNavbar from './AppNavbar';
import { Link } from 'react-router-dom';
import { Button, Container } from 'reactstrap';
class Home extends Component {
render() {
return (
<div>
<AppNavbar/>
<Container fluid>
<Button color="link"><Link to="/clients">Clients</Link></Button>
</Container>
</div>
);
}
}
export default Home;

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body {
margin: 0;
font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'Roboto', 'Oxygen',
'Ubuntu', 'Cantarell', 'Fira Sans', 'Droid Sans', 'Helvetica Neue',
sans-serif;
-webkit-font-smoothing: antialiased;
-moz-osx-font-smoothing: grayscale;
}
code {
font-family: source-code-pro, Menlo, Monaco, Consolas, 'Courier New',
monospace;
}

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import React from 'react';
import ReactDOM from 'react-dom';
import './index.css';
import App from './App';
import reportWebVitals from './reportWebVitals';
import 'bootstrap/dist/css/bootstrap.min.css';
ReactDOM.render(
<React.StrictMode>
<App />
</React.StrictMode>,
document.getElementById('root')
);
// If you want to start measuring performance in your app, pass a function
// to log results (for example: reportWebVitals(console.log))
// or send to an analytics endpoint. Learn more: https://bit.ly/CRA-vitals
reportWebVitals();

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<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 841.9 595.3"><g fill="#61DAFB"><path d="M666.3 296.5c0-32.5-40.7-63.3-103.1-82.4 14.4-63.6 8-114.2-20.2-130.4-6.5-3.8-14.1-5.6-22.4-5.6v22.3c4.6 0 8.3.9 11.4 2.6 13.6 7.8 19.5 37.5 14.9 75.7-1.1 9.4-2.9 19.3-5.1 29.4-19.6-4.8-41-8.5-63.5-10.9-13.5-18.5-27.5-35.3-41.6-50 32.6-30.3 63.2-46.9 84-46.9V78c-27.5 0-63.5 19.6-99.9 53.6-36.4-33.8-72.4-53.2-99.9-53.2v22.3c20.7 0 51.4 16.5 84 46.6-14 14.7-28 31.4-41.3 49.9-22.6 2.4-44 6.1-63.6 11-2.3-10-4-19.7-5.2-29-4.7-38.2 1.1-67.9 14.6-75.8 3-1.8 6.9-2.6 11.5-2.6V78.5c-8.4 0-16 1.8-22.6 5.6-28.1 16.2-34.4 66.7-19.9 130.1-62.2 19.2-102.7 49.9-102.7 82.3 0 32.5 40.7 63.3 103.1 82.4-14.4 63.6-8 114.2 20.2 130.4 6.5 3.8 14.1 5.6 22.5 5.6 27.5 0 63.5-19.6 99.9-53.6 36.4 33.8 72.4 53.2 99.9 53.2 8.4 0 16-1.8 22.6-5.6 28.1-16.2 34.4-66.7 19.9-130.1 62-19.1 102.5-49.9 102.5-82.3zm-130.2-66.7c-3.7 12.9-8.3 26.2-13.5 39.5-4.1-8-8.4-16-13.1-24-4.6-8-9.5-15.8-14.4-23.4 14.2 2.1 27.9 4.7 41 7.9zm-45.8 106.5c-7.8 13.5-15.8 26.3-24.1 38.2-14.9 1.3-30 2-45.2 2-15.1 0-30.2-.7-45-1.9-8.3-11.9-16.4-24.6-24.2-38-7.6-13.1-14.5-26.4-20.8-39.8 6.2-13.4 13.2-26.8 20.7-39.9 7.8-13.5 15.8-26.3 24.1-38.2 14.9-1.3 30-2 45.2-2 15.1 0 30.2.7 45 1.9 8.3 11.9 16.4 24.6 24.2 38 7.6 13.1 14.5 26.4 20.8 39.8-6.3 13.4-13.2 26.8-20.7 39.9zm32.3-13c5.4 13.4 10 26.8 13.8 39.8-13.1 3.2-26.9 5.9-41.2 8 4.9-7.7 9.8-15.6 14.4-23.7 4.6-8 8.9-16.1 13-24.1zM421.2 430c-9.3-9.6-18.6-20.3-27.8-32 9 .4 18.2.7 27.5.7 9.4 0 18.7-.2 27.8-.7-9 11.7-18.3 22.4-27.5 32zm-74.4-58.9c-14.2-2.1-27.9-4.7-41-7.9 3.7-12.9 8.3-26.2 13.5-39.5 4.1 8 8.4 16 13.1 24 4.7 8 9.5 15.8 14.4 23.4zM420.7 163c9.3 9.6 18.6 20.3 27.8 32-9-.4-18.2-.7-27.5-.7-9.4 0-18.7.2-27.8.7 9-11.7 18.3-22.4 27.5-32zm-74 58.9c-4.9 7.7-9.8 15.6-14.4 23.7-4.6 8-8.9 16-13 24-5.4-13.4-10-26.8-13.8-39.8 13.1-3.1 26.9-5.8 41.2-7.9zm-90.5 125.2c-35.4-15.1-58.3-34.9-58.3-50.6 0-15.7 22.9-35.6 58.3-50.6 8.6-3.7 18-7 27.7-10.1 5.7 19.6 13.2 40 22.5 60.9-9.2 20.8-16.6 41.1-22.2 60.6-9.9-3.1-19.3-6.5-28-10.2zM310 490c-13.6-7.8-19.5-37.5-14.9-75.7 1.1-9.4 2.9-19.3 5.1-29.4 19.6 4.8 41 8.5 63.5 10.9 13.5 18.5 27.5 35.3 41.6 50-32.6 30.3-63.2 46.9-84 46.9-4.5-.1-8.3-1-11.3-2.7zm237.2-76.2c4.7 38.2-1.1 67.9-14.6 75.8-3 1.8-6.9 2.6-11.5 2.6-20.7 0-51.4-16.5-84-46.6 14-14.7 28-31.4 41.3-49.9 22.6-2.4 44-6.1 63.6-11 2.3 10.1 4.1 19.8 5.2 29.1zm38.5-66.7c-8.6 3.7-18 7-27.7 10.1-5.7-19.6-13.2-40-22.5-60.9 9.2-20.8 16.6-41.1 22.2-60.6 9.9 3.1 19.3 6.5 28.1 10.2 35.4 15.1 58.3 34.9 58.3 50.6-.1 15.7-23 35.6-58.4 50.6zM320.8 78.4z"/><circle cx="420.9" cy="296.5" r="45.7"/><path d="M520.5 78.1z"/></g></svg>

After

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const reportWebVitals = onPerfEntry => {
if (onPerfEntry && onPerfEntry instanceof Function) {
import('web-vitals').then(({ getCLS, getFID, getFCP, getLCP, getTTFB }) => {
getCLS(onPerfEntry);
getFID(onPerfEntry);
getFCP(onPerfEntry);
getLCP(onPerfEntry);
getTTFB(onPerfEntry);
});
}
};
export default reportWebVitals;

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// jest-dom adds custom jest matchers for asserting on DOM nodes.
// allows you to do things like:
// expect(element).toHaveTextContent(/react/i)
// learn more: https://github.com/testing-library/jest-dom
import '@testing-library/jest-dom';

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<?xml version="1.0" encoding="UTF-8"?>
<project xmlns="http://maven.apache.org/POM/4.0.0"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
<parent>
<artifactId>spring-boot-modules</artifactId>
<groupId>com.baeldung.spring-boot-modules</groupId>
<version>1.0.0-SNAPSHOT</version>
</parent>
<modelVersion>4.0.0</modelVersion>
<artifactId>spring-boot-react</artifactId>
<properties>
<maven.compiler.source>11</maven.compiler.source>
<maven.compiler.target>11</maven.compiler.target>
<frontend-maven-plugin.version>1.6</frontend-maven-plugin.version>
<node.version>v10.14.2</node.version>
<yarn.version>v1.12.1</yarn.version>
</properties>
<dependencies>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-web</artifactId>
<version>2.4.4</version>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-data-jpa</artifactId>
<version>2.4.4</version>
</dependency>
<dependency>
<groupId>com.h2database</groupId>
<artifactId>h2</artifactId>
<version>1.4.200</version>
<scope>runtime</scope>
</dependency>
<dependency>
<groupId>com.github.javafaker</groupId>
<artifactId>javafaker</artifactId>
<version>1.0.2</version>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-test</artifactId>
<version>2.4.4</version>
<scope>test</scope>
</dependency>
</dependencies>
<build>
<plugins>
<plugin>
<artifactId>maven-resources-plugin</artifactId>
<version>3.1.0</version>
<executions>
<execution>
<id>copy-resources</id>
<phase>process-classes</phase>
<goals>
<goal>copy-resources</goal>
</goals>
<configuration>
<outputDirectory>${basedir}/target/classes/static</outputDirectory>
<resources>
<resource>
<directory>frontend/build</directory>
</resource>
</resources>
</configuration>
</execution>
</executions>
</plugin>
<plugin>
<groupId>com.github.eirslett</groupId>
<artifactId>frontend-maven-plugin</artifactId>
<version>${frontend-maven-plugin.version}</version>
<configuration>
<workingDirectory>frontend</workingDirectory>
</configuration>
<executions>
<execution>
<id>install node</id>
<goals>
<goal>install-node-and-yarn</goal>
</goals>
<configuration>
<nodeVersion>${node.version}</nodeVersion>
<yarnVersion>${yarn.version}</yarnVersion>
</configuration>
</execution>
<execution>
<id>yarn install</id>
<goals>
<goal>yarn</goal>
</goals>
<phase>generate-resources</phase>
</execution>
<execution>
<id>yarn test</id>
<goals>
<goal>yarn</goal>
</goals>
<phase>test</phase>
<configuration>
<arguments>test</arguments>
<environmentVariables>
<CI>true</CI>
</environmentVariables>
</configuration>
</execution>
<execution>
<id>yarn build</id>
<goals>
<goal>yarn</goal>
</goals>
<phase>compile</phase>
<configuration>
<arguments>build</arguments>
</configuration>
</execution>
</executions>
</plugin>
<plugin>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-maven-plugin</artifactId>
</plugin>
</plugins>
</build>
</project>

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package com.baeldung.springbootreact;
import com.baeldung.springbootreact.domain.Client;
import com.baeldung.springbootreact.repository.ClientRepository;
import com.github.javafaker.Faker;
import org.springframework.boot.CommandLineRunner;
import org.springframework.stereotype.Component;
import java.util.Locale;
@Component
public class BoostrapInitialData implements CommandLineRunner {
private final ClientRepository clientRepository;
private final Faker faker = new Faker(Locale.getDefault());
public BoostrapInitialData(ClientRepository clientRepository) {
this.clientRepository = clientRepository;
}
@Override
public void run(String... args) {
for (int i = 0; i < 10; i++) {
clientRepository.save(new Client(faker.name().fullName(), faker.internet().emailAddress()));
}
}
}

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package com.baeldung.springbootreact;
import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;
@SpringBootApplication
public class SpringBootReactApplication {
public static void main(String[] args) {
SpringApplication.run(SpringBootReactApplication.class, args);
}
}

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package com.baeldung.springbootreact.controller;
import com.baeldung.springbootreact.domain.Client;
import com.baeldung.springbootreact.repository.ClientRepository;
import org.springframework.http.ResponseEntity;
import org.springframework.web.bind.annotation.*;
import java.net.URI;
import java.net.URISyntaxException;
import java.util.List;
@RestController
@RequestMapping("/clients")
public class ClientsController {
private final ClientRepository clientRepository;
public ClientsController(ClientRepository clientRepository) {
this.clientRepository = clientRepository;
}
@GetMapping
public List<Client> getClients() {
return clientRepository.findAll();
}
@GetMapping("/{id}")
public Client getClient(@PathVariable Long id) {
return clientRepository.findById(id).orElseThrow(RuntimeException::new);
}
@PostMapping
public ResponseEntity createClient(@RequestBody Client client) throws URISyntaxException {
Client savedClient = clientRepository.save(client);
return ResponseEntity.created(new URI("/clients/" + savedClient.getId())).body(savedClient);
}
@PutMapping("/{id}")
public ResponseEntity updateClient(@PathVariable Long id, @RequestBody Client client) {
Client currentClient = clientRepository.findById(id).orElseThrow(RuntimeException::new);
currentClient.setName(client.getName());
currentClient.setEmail(client.getEmail());
currentClient = clientRepository.save(client);
return ResponseEntity.ok(currentClient);
}
@DeleteMapping("/{id}")
public ResponseEntity deleteClient(@PathVariable Long id) {
clientRepository.deleteById(id);
return ResponseEntity.ok().build();
}
}

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package com.baeldung.springbootreact.domain;
import javax.persistence.Entity;
import javax.persistence.GeneratedValue;
import javax.persistence.Id;
import javax.persistence.Table;
@Entity
@Table(name = "client")
public class Client {
@Id
@GeneratedValue
private Long id;
private String name;
private String email;
public Client() {
}
public Client(String name, String email) {
this.name = name;
this.email = email;
}
public Client(Long id, String name, String email) {
this.id = id;
this.name = name;
this.email = email;
}
public Long getId() {
return id;
}
public void setId(Long id) {
this.id = id;
}
public String getName() {
return name;
}
public void setName(String name) {
this.name = name;
}
public String getEmail() {
return email;
}
public void setEmail(String email) {
this.email = email;
}
}

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package com.baeldung.springbootreact.repository;
import com.baeldung.springbootreact.domain.Client;
import org.springframework.data.jpa.repository.JpaRepository;
public interface ClientRepository extends JpaRepository<Client, Long> {
}