├── .eslintrc
├── .env
├── public
    ├── favicon.ico
    ├── manifest.json
    └── index.html
├── src
    ├── index.css
    ├── __mocks__
    │   └── axios.js
    ├── index.js
    ├── App.css
    ├── services
    │   ├── newsapi.js
    │   └── __mocks__
    │   │   └── newsapi.js
    ├── App.js
    ├── components
    │   ├── NewsItemContainer.js
    │   ├── NewsItemContainer.test.js
    │   └── NewsItem.js
    ├── App.test.js
    ├── logo.svg
    └── registerServiceWorker.js
├── .gitignore
├── package.json
└── README.md


/.eslintrc:
--------------------------------------------------------------------------------
1 | {
2 |   "extends": "react-app"
3 | }


--------------------------------------------------------------------------------
/.env:
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1 | REACT_APP_NEWS_API_KEY= 7339911ee546409d87e0ac4ceb09f351


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/public/favicon.ico:
--------------------------------------------------------------------------------
https://raw.githubusercontent.com/AlanBinu007/React-MyNews/HEAD/public/favicon.ico


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/src/index.css:
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1 | body {
2 |   margin: 0;
3 |   padding: 0;
4 |   font-family: sans-serif;
5 | }
6 | 


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/src/__mocks__/axios.js:
--------------------------------------------------------------------------------
1 | export default {
2 |   get: jest.fn(() => Promise.resolve({ data: {} }))
3 | };
4 | 


--------------------------------------------------------------------------------
/src/index.js:
--------------------------------------------------------------------------------
 1 | import "bootstrap/dist/css/bootstrap.min.css";
 2 | import React from "react";
 3 | import ReactDOM from "react-dom";
 4 | import "./index.css";
 5 | import App from "./App";
 6 | import registerServiceWorker from "./registerServiceWorker";
 7 | 
 8 | ReactDOM.render(<App />, document.getElementById("root"));
 9 | registerServiceWorker();
10 | 


--------------------------------------------------------------------------------
/.gitignore:
--------------------------------------------------------------------------------
 1 | # See https://help.github.com/ignore-files/ for more about ignoring files.
 2 | 
 3 | # dependencies
 4 | /node_modules
 5 | 
 6 | # testing
 7 | /coverage
 8 | 
 9 | # production
10 | /build
11 | 
12 | # misc
13 | .DS_Store
14 | .env.local
15 | .env.development.local
16 | .env.test.local
17 | .env.production.local
18 | 
19 | npm-debug.log*
20 | yarn-debug.log*
21 | yarn-error.log*
22 | 


--------------------------------------------------------------------------------
/public/manifest.json:
--------------------------------------------------------------------------------
 1 | {
 2 |   "short_name": "React App",
 3 |   "name": "Create React App Sample",
 4 |   "icons": [
 5 |     {
 6 |       "src": "favicon.ico",
 7 |       "sizes": "64x64 32x32 24x24 16x16",
 8 |       "type": "image/x-icon"
 9 |     }
10 |   ],
11 |   "start_url": "./index.html",
12 |   "display": "standalone",
13 |   "theme_color": "#000000",
14 |   "background_color": "#ffffff"
15 | }
16 | 


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/src/App.css:
--------------------------------------------------------------------------------
 1 | .App {
 2 |   text-align: center;
 3 | }
 4 | 
 5 | .App-logo {
 6 |   animation: App-logo-spin infinite 20s linear;
 7 |   height: 80px;
 8 | }
 9 | 
10 | .App-header {
11 |   background-color: #222;
12 |   height: 150px;
13 |   padding: 20px;
14 |   color: white;
15 | }
16 | 
17 | .App-title {
18 |   font-size: 1.5em;
19 | }
20 | 
21 | .App-intro {
22 |   font-size: large;
23 | }
24 | 
25 | @keyframes App-logo-spin {
26 |   from { transform: rotate(0deg); }
27 |   to { transform: rotate(360deg); }
28 | }
29 | 


--------------------------------------------------------------------------------
/package.json:
--------------------------------------------------------------------------------
 1 | {
 2 |   "name": "news-app-react",
 3 |   "version": "0.1.0",
 4 |   "private": true,
 5 |   "dependencies": {
 6 |     "axios": "^0.21.1",
 7 |     "bootstrap": "^4.3.1",
 8 |     "lodash": "^4.17.21",
 9 |     "moment": "^2.22.2",
10 |     "react": "^16.4.2",
11 |     "react-dom": "^16.4.2",
12 |     "react-scripts": "1.1.5"
13 |   },
14 |   "scripts": {
15 |     "start": "react-scripts start",
16 |     "build": "react-scripts build",
17 |     "test": "react-scripts test --env=jsdom",
18 |     "eject": "react-scripts eject"
19 |   },
20 |   "devDependencies": {
21 |     "@react-mock/state": "^0.1.7",
22 |     "eslint-plugin-prettier": "^2.6.2",
23 |     "jest-dom": "^3.1.2",
24 |     "prettier": "1.14.2",
25 |     "react-testing-library": "^5.4.4"
26 |   }
27 | }
28 | 


--------------------------------------------------------------------------------
/src/services/newsapi.js:
--------------------------------------------------------------------------------
 1 | import axios from "axios";
 2 | import _ from "lodash";
 3 | 
 4 | const get_sources = () => {
 5 |   return axios
 6 |     .get(
 7 |       "https://newsapi.org/v2/sources?language=en&apiKey=" +
 8 |         process.env.REACT_APP_NEWS_API_KEY
 9 |     )
10 |     .then(res => {
11 |       return _.sampleSize(res.data.sources, 3);
12 |     })
13 |     .catch(err => {
14 |       console.log(err.message);
15 |       alert(err.message);
16 |     });
17 | };
18 | 
19 | const get_articles = source => {
20 |   return axios
21 |     .get(
22 |       "https://newsapi.org/v2/top-headlines?sources=" +
23 |         source +
24 |         "&apiKey=" +
25 |         process.env.REACT_APP_NEWS_API_KEY
26 |     )
27 |     .then(res => {
28 |       return _.sampleSize(res.data.articles, 5);
29 |     });
30 | };
31 | 
32 | export { get_sources, get_articles };
33 | 


--------------------------------------------------------------------------------
/src/services/__mocks__/newsapi.js:
--------------------------------------------------------------------------------
 1 | const fakeSources = {
 2 |   sources: [
 3 |     {
 4 |       id: "a",
 5 |       name: "Source One"
 6 |     },
 7 |     {
 8 |       id: "b",
 9 |       name: "Source Two"
10 |     }
11 |   ]
12 | };
13 | 
14 | const fakeArticles = {
15 |   articles: [
16 |     {
17 |       source: {
18 |         id: "a",
19 |         name: "Source One"
20 |       },
21 |       author: "Author One",
22 |       title: "Title One",
23 |       url: "http://url1"
24 |     },
25 |     {
26 |       source: {
27 |         id: "b",
28 |         name: "Source Two"
29 |       },
30 |       author: "Author Two",
31 |       title: "Title Two",
32 |       url: "http://url2"
33 |     }
34 |   ]
35 | };
36 | 
37 | const get_sources = () => {
38 |   jest.fn(() => Promise.resolve({ data: fakeSources }));
39 | };
40 | 
41 | const get_articles = source =>
42 |   jest.fn(() => Promise.resolve({ data: fakeArticles }));
43 | 
44 | export { get_sources, get_articles };
45 | 


--------------------------------------------------------------------------------
/src/App.js:
--------------------------------------------------------------------------------
 1 | import React, { Component } from "react";
 2 | import _ from "lodash";
 3 | import { get_sources } from "./services/newsapi";
 4 | 
 5 | import NewsItemContainer from "./components/NewsItemContainer";
 6 | 
 7 | class App extends Component {
 8 |   state = {
 9 |     sources: []
10 |   };
11 | 
12 |   async componentDidMount() {
13 |     const _sources = await get_sources();
14 | 
15 |     this.setState({ sources: _.sampleSize(_sources, 3) });
16 |   }
17 | 
18 |   render() {
19 |     const header_style = {
20 |       textAlign: "center"
21 |     };
22 | 
23 |     return (
24 |       <div className="container-fluid">
25 |         <div className="m-5" style={header_style}>
26 |           <h1>News App - React</h1>
27 |         </div>
28 | 
29 |         <div className="d-flex justify-content-between flex-wrap m-4">
30 |           {this.state.sources.map((source, index) => (
31 |             <NewsItemContainer source={source} key={index} />
32 |           ))}
33 |         </div>
34 |       </div>
35 |     );
36 |   }
37 | }
38 | 
39 | export default App;
40 | 


--------------------------------------------------------------------------------
/src/components/NewsItemContainer.js:
--------------------------------------------------------------------------------
 1 | import React, { Component } from "react";
 2 | import _ from "lodash";
 3 | import { get_articles } from "../services/newsapi";
 4 | 
 5 | import NewsItem from "./NewsItem";
 6 | 
 7 | export default class NewsItemContainer extends Component {
 8 |   state = {
 9 |     articles: []
10 |   };
11 | 
12 |   async componentDidMount() {
13 |     const _articles = await get_articles(this.props.source.id);
14 | 
15 |     this.setState({ articles: _.sampleSize(_articles, 5) });
16 |   }
17 | 
18 |   render() {
19 |     const containerStyle = {
20 |       width: "23rem"
21 |     };
22 |     return (
23 |       <div>
24 |         <div className="card mb-4" style={containerStyle}>
25 |           <div className="card-header">
26 |             <p className="text-center mb-0 font-weight-bold text-uppercase">
27 |               {this.props.source.name}
28 |             </p>
29 |           </div>
30 | 
31 |           <div className="p-3">
32 |             {this.state.articles.map((article, index) => (
33 |               <NewsItem item={article} key={index} />
34 |             ))}
35 |           </div>
36 |         </div>
37 |       </div>
38 |     );
39 |   }
40 | }
41 | 


--------------------------------------------------------------------------------
/src/components/NewsItemContainer.test.js:
--------------------------------------------------------------------------------
 1 | import React from "react";
 2 | import { render } from "react-testing-library";
 3 | import NewsItemContainer from "./NewsItemContainer";
 4 | import { StateMock } from "@react-mock/state";
 5 | 
 6 | describe("NewsItemContainer", () => {
 7 |   it("renders successfully", async () => {
 8 |     const source = {
 9 |       id: "a",
10 |       name: "Source One"
11 |     };
12 | 
13 |     const articles = [
14 |       {
15 |         source: {
16 |           id: "a",
17 |           name: "Source One"
18 |         },
19 |         author: "Author One",
20 |         title: "Title One",
21 |         url: "http://url1"
22 |       },
23 |       {
24 |         source: {
25 |           id: "b",
26 |           name: "Source Two"
27 |         },
28 |         author: "Author Two",
29 |         title: "Title Two",
30 |         url: "http://url2"
31 |       }
32 |     ];
33 | 
34 |     const { getByText } = render(
35 |       <StateMock state={{ articles: articles }}>
36 |         <NewsItemContainer source={source} />
37 |       </StateMock>
38 |     );
39 | 
40 |     const component_text = getByText(articles[0].title);
41 | 
42 |     expect(component_text).toBeDefined();
43 |   });
44 | });
45 | 


--------------------------------------------------------------------------------
/src/App.test.js:
--------------------------------------------------------------------------------
 1 | import React from "react";
 2 | import { render, cleanup } from "react-testing-library";
 3 | import "jest-dom/extend-expect";
 4 | import App from "./App";
 5 | import { StateMock } from "@react-mock/state";
 6 | 
 7 | // jest.mock("./services/newsapi");
 8 | 
 9 | afterEach(cleanup);
10 | 
11 | describe("App", () => {
12 |   it("renders without crashing", () => {
13 |     const { getByText } = render(<App />);
14 | 
15 |     const app_title = getByText(/^news app - react$/i);
16 | 
17 |     expect(app_title).toBeDefined();
18 |   });
19 | 
20 |   it("renders NewsItemContainer", async () => {
21 |     const source1 = {
22 |       id: "a",
23 |       name: "Source One"
24 |     };
25 | 
26 |     const source2 = {
27 |       id: "b",
28 |       name: "Source Two"
29 |     };
30 | 
31 |     const source3 = {
32 |       id: "c",
33 |       name: "Source Three"
34 |     };
35 | 
36 |     const sources = {
37 |       sources: [source1, source2, source3]
38 |     };
39 | 
40 |     const { getByText } = render(
41 |       <StateMock state={sources}>
42 |         <App />
43 |       </StateMock>
44 |     );
45 | 
46 |     const component_text = getByText("Source Three");
47 | 
48 |     expect(component_text).toBeDefined();
49 |   });
50 | });
51 | 


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/src/components/NewsItem.js:
--------------------------------------------------------------------------------
 1 | import React, { Component } from "react";
 2 | import moment from "moment";
 3 | 
 4 | export default class NewsItem extends Component {
 5 | 	render() {
 6 | 		return (
 7 | 			<div>
 8 | 				<div className="card mb-4">
 9 | 					<img
10 | 						className="card-img-top"
11 | 						src={
12 | 							this.props.item.urlToImage
13 | 								? this.props.item.urlToImage
14 | 								: "https://imgplaceholder.com/420x320/e3e0e0/757575/fa-file-picture-o?text=Image+Not+Found"
15 | 						}
16 | 						alt={this.props.item.title}
17 | 					/>
18 | 					<div className="card-body">
19 | 						<a href={this.props.item.url} target="_blank">
20 | 							<h5 className="card-title">
21 | 								{this.props.item.title}
22 | 							</h5>
23 | 						</a>
24 | 						<p className="card-text pb-6">
25 | 							<small>{this.props.item.description}</small>
26 | 						</p>
27 | 						<p href="#" className="">
28 | 							<small>
29 | 								By:&nbsp;
30 | 								{this.props.item.author
31 | 									? this.props.item.author
32 | 									: "No Author Specified"}
33 | 							</small>
34 | 						</p>
35 | 					</div>
36 | 					<div className="card-footer text-right">
37 | 						<small className="text-muted">
38 | 							{moment(this.props.item.publishedAt).format(
39 | 								"D/MMM/YYYY - h:mma"
40 | 							)}
41 | 						</small>
42 | 					</div>
43 | 				</div>
44 | 			</div>
45 | 		);
46 | 	}
47 | }
48 | 


--------------------------------------------------------------------------------
/README.md:
--------------------------------------------------------------------------------
 1 | # News App - React
 2 | 
 3 | Application to view news stories from sources around the world.
 4 | 
 5 | Built with [React](https://reactjs.org/) as frontend JavaScript framework.
 6 | 
 7 | ## Requirements
 8 | 
 9 | - [Create React App](https://github.com/facebook/create-react-app)
10 | - [Bootstrap 4](https://getbootstrap.com/)
11 | - [Node.js](https://nodejs.org/en/) >8.x and [npm](https://www.npmjs.com/)
12 | - [News API](https://newsapi.org/) key
13 | 
14 | ## Installation
15 | 
16 | ### Clone Project
17 | 
18 | ```sh
19 | git clone https://github.com/AlanBinu007/React-MyNews
20 | ```
21 | 
22 | ### Install dependencies
23 | 
24 | Install `npm` dependencies with Yarn:
25 | 
26 | ```
27 | yarn
28 | ```
29 | 
30 | ### Get API key for News service
31 | 
32 | Head to [http://newsapi.org](http://newsapi.org), signup or login to and get an API key
33 | 
34 | 
35 | ### Add details in `.env.local` file
36 | 
37 | Create `.env.local` file from example `.env` file and maintain necessary details in it e.g. API key etc
38 | 
39 | ```sh
40 | cp .env .env.local
41 | ```
42 | 
43 | ### Development Server
44 | Run `yarn start` for a development server. Navigate to `http://localhost:3000/`. The app will automatically reload if you change any of the source files.
45 | 
46 | 
47 | ## Other
48 | 
49 | ### Build
50 | 
51 | ```sh
52 | yarn build
53 | ```
54 | 
55 | Builds the app for production to the `build` folder.
56 | 
57 | ### Running unit tests
58 | 
59 | ```sh
60 | yarn test
61 | ```
62 | 
63 | Runs the test watcher in an interactive mode.
64 | 


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/src/logo.svg:
--------------------------------------------------------------------------------
1 | <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 841.9 595.3">
2 |     <g fill="#61DAFB">
3 |         <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"/>
4 |         <circle cx="420.9" cy="296.5" r="45.7"/>
5 |         <path d="M520.5 78.1z"/>
6 |     </g>
7 | </svg>
8 | 


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/public/index.html:
--------------------------------------------------------------------------------
 1 | <!DOCTYPE html>
 2 | <html lang="en">
 3 |   <head>
 4 |     <meta charset="utf-8">
 5 |     <meta name="viewport" content="width=device-width, initial-scale=1, shrink-to-fit=no">
 6 |     <meta name="theme-color" content="#000000">
 7 |     <!--
 8 |       manifest.json provides metadata used when your web app is added to the
 9 |       homescreen on Android. See https://developers.google.com/web/fundamentals/engage-and-retain/web-app-manifest/
10 |     -->
11 |     <link rel="manifest" href="%PUBLIC_URL%/manifest.json">
12 |     <link rel="shortcut icon" href="%PUBLIC_URL%/favicon.ico">
13 |     <!--
14 |       Notice the use of %PUBLIC_URL% in the tags above.
15 |       It will be replaced with the URL of the `public` folder during the build.
16 |       Only files inside the `public` folder can be referenced from the HTML.
17 | 
18 |       Unlike "/favicon.ico" or "favicon.ico", "%PUBLIC_URL%/favicon.ico" will
19 |       work correctly both with client-side routing and a non-root public URL.
20 |       Learn how to configure a non-root public URL by running `npm run build`.
21 |     -->
22 |     <title>My News</title>
23 |   </head>
24 |   <body>
25 |     <noscript>
26 |       You need to enable JavaScript to run this app.
27 |     </noscript>
28 |     <div id="root"></div>
29 |     <a
30 |       href="https://github.com/AlanBinu007/React-Covid19-Tracker"
31 |       class="github-corner"
32 |       aria-label="View source code on GitHub"
33 |       target="_blank"
34 |       ><svg
35 |         width="80"
36 |         height="80"
37 |         viewBox="0 0 250 250"
38 |         style="
39 |           fill: #fff;
40 |           color: #151513;
41 |           position: absolute;
42 |           top: 0;
43 |           border: 0;
44 |           right: 0;
45 |         "
46 |         aria-hidden="true"
47 |       >
48 |         <path d="M0,0 L115,115 L130,115 L142,142 L250,250 L250,0 Z"></path>
49 |         <path
50 |           d="M128.3,109.0 C113.8,99.7 119.0,89.6 119.0,89.6 C122.0,82.7 120.5,78.6 120.5,78.6 C119.2,72.0 123.4,76.3 123.4,76.3 C127.3,80.9 125.5,87.3 125.5,87.3 C122.9,97.6 130.6,101.9 134.4,103.2"
51 |           fill="currentColor"
52 |           style="transform-origin: 130px 106px"
53 |           class="octo-arm"
54 |         ></path>
55 |         <path
56 |           d="M115.0,115.0 C114.9,115.1 118.7,116.5 119.8,115.4 L133.7,101.6 C136.9,99.2 139.9,98.4 142.2,98.6 C133.8,88.0 127.5,74.4 143.8,58.0 C148.5,53.4 154.0,51.2 159.7,51.0 C160.3,49.4 163.2,43.6 171.4,40.1 C171.4,40.1 176.1,42.5 178.8,56.2 C183.1,58.6 187.2,61.8 190.9,65.4 C194.5,69.0 197.7,73.2 200.1,77.6 C213.8,80.2 216.3,84.9 216.3,84.9 C212.7,93.1 206.9,96.0 205.4,96.6 C205.1,102.4 203.0,107.8 198.3,112.5 C181.9,128.9 168.3,122.5 157.7,114.1 C157.9,116.9 156.7,120.9 152.7,124.9 L141.0,136.5 C139.8,137.7 141.6,141.9 141.8,141.8 Z"
57 |           fill="currentColor"
58 |           class="octo-body"
59 |         ></path></svg></a
60 |     ><style>
61 |       .github-corner:hover .octo-arm {
62 |         animation: octocat-wave 560ms ease-in-out;
63 |       }
64 |       @keyframes octocat-wave {
65 |         0%,
66 |         100% {
67 |           transform: rotate(0);
68 |         }
69 |         20%,
70 |         60% {
71 |           transform: rotate(-25deg);
72 |         }
73 |         40%,
74 |         80% {
75 |           transform: rotate(10deg);
76 |         }
77 |       }
78 |       @media (max-width: 500px) {
79 |         .github-corner:hover .octo-arm {
80 |           animation: none;
81 |         }
82 |         .github-corner .octo-arm {
83 |           animation: octocat-wave 560ms ease-in-out;
84 |         }
85 |       }
86 |     </style>
87 |   </body>
88 | </html>
89 | 


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/src/registerServiceWorker.js:
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  1 | // In production, we register a service worker to serve assets from local cache.
  2 | 
  3 | // This lets the app load faster on subsequent visits in production, and gives
  4 | // it offline capabilities. However, it also means that developers (and users)
  5 | // will only see deployed updates on the "N+1" visit to a page, since previously
  6 | // cached resources are updated in the background.
  7 | 
  8 | // To learn more about the benefits of this model, read https://goo.gl/KwvDNy.
  9 | // This link also includes instructions on opting out of this behavior.
 10 | 
 11 | const isLocalhost = Boolean(
 12 |   window.location.hostname === "localhost" ||
 13 |     // [::1] is the IPv6 localhost address.
 14 |     window.location.hostname === "[::1]" ||
 15 |     // 127.0.0.1/8 is considered localhost for IPv4.
 16 |     window.location.hostname.match(
 17 |       /^127(?:\.(?:25[0-5]|2[0-4][0-9]|[01]?[0-9][0-9]?)){3}$/
 18 |     )
 19 | );
 20 | 
 21 | export default function register() {
 22 |   if (process.env.NODE_ENV === "production" && "serviceWorker" in navigator) {
 23 |     // The URL constructor is available in all browsers that support SW.
 24 |     const publicUrl = new URL(process.env.PUBLIC_URL, window.location);
 25 |     if (publicUrl.origin !== window.location.origin) {
 26 |       // Our service worker won't work if PUBLIC_URL is on a different origin
 27 |       // from what our page is served on. This might happen if a CDN is used to
 28 |       // serve assets; see https://github.com/facebookincubator/create-react-app/issues/2374
 29 |       return;
 30 |     }
 31 | 
 32 |     window.addEventListener("load", () => {
 33 |       const swUrl = `${process.env.PUBLIC_URL}/service-worker.js`;
 34 | 
 35 |       if (isLocalhost) {
 36 |         // This is running on localhost. Lets check if a service worker still exists or not.
 37 |         checkValidServiceWorker(swUrl);
 38 | 
 39 |         // Add some additional logging to localhost, pointing developers to the
 40 |         // service worker/PWA documentation.
 41 |         navigator.serviceWorker.ready.then(() => {
 42 |           console.log(
 43 |             "This web app is being served cache-first by a service " +
 44 |               "worker. To learn more, visit https://goo.gl/SC7cgQ"
 45 |           );
 46 |         });
 47 |       } else {
 48 |         // Is not local host. Just register service worker
 49 |         registerValidSW(swUrl);
 50 |       }
 51 |     });
 52 |   }
 53 | }
 54 | 
 55 | function registerValidSW(swUrl) {
 56 |   navigator.serviceWorker
 57 |     .register(swUrl)
 58 |     .then(registration => {
 59 |       registration.onupdatefound = () => {
 60 |         const installingWorker = registration.installing;
 61 |         installingWorker.onstatechange = () => {
 62 |           if (installingWorker.state === "installed") {
 63 |             if (navigator.serviceWorker.controller) {
 64 |               // At this point, the old content will have been purged and
 65 |               // the fresh content will have been added to the cache.
 66 |               // It's the perfect time to display a "New content is
 67 |               // available; please refresh." message in your web app.
 68 |               console.log("New content is available; please refresh.");
 69 |             } else {
 70 |               // At this point, everything has been precached.
 71 |               // It's the perfect time to display a
 72 |               // "Content is cached for offline use." message.
 73 |               console.log("Content is cached for offline use.");
 74 |             }
 75 |           }
 76 |         };
 77 |       };
 78 |     })
 79 |     .catch(error => {
 80 |       console.error("Error during service worker registration:", error);
 81 |     });
 82 | }
 83 | 
 84 | function checkValidServiceWorker(swUrl) {
 85 |   // Check if the service worker can be found. If it can't reload the page.
 86 |   fetch(swUrl)
 87 |     .then(response => {
 88 |       // Ensure service worker exists, and that we really are getting a JS file.
 89 |       if (
 90 |         response.status === 404 ||
 91 |         response.headers.get("content-type").indexOf("javascript") === -1
 92 |       ) {
 93 |         // No service worker found. Probably a different app. Reload the page.
 94 |         navigator.serviceWorker.ready.then(registration => {
 95 |           registration.unregister().then(() => {
 96 |             window.location.reload();
 97 |           });
 98 |         });
 99 |       } else {
100 |         // Service worker found. Proceed as normal.
101 |         registerValidSW(swUrl);
102 |       }
103 |     })
104 |     .catch(() => {
105 |       console.log(
106 |         "No internet connection found. App is running in offline mode."
107 |       );
108 |     });
109 | }
110 | 
111 | export function unregister() {
112 |   if ("serviceWorker" in navigator) {
113 |     navigator.serviceWorker.ready.then(registration => {
114 |       registration.unregister();
115 |     });
116 |   }
117 | }
118 | 


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