├── .gitignore
├── README.md
├── package-lock.json
├── package.json
├── public
    ├── favicon.ico
    ├── index.html
    ├── logo192.png
    ├── logo512.png
    ├── manifest.json
    └── robots.txt
└── src
    ├── App.css
    ├── App.js
    ├── App.test.js
    ├── context.js
    ├── index.css
    ├── index.js
    ├── logo.svg
    ├── reportWebVitals.js
    └── setupTests.js


/.gitignore:
--------------------------------------------------------------------------------
 1 | # See https://help.github.com/articles/ignoring-files/ for more about ignoring files.
 2 | 
 3 | # dependencies
 4 | /node_modules
 5 | /.pnp
 6 | .pnp.js
 7 | 
 8 | # testing
 9 | /coverage
10 | 
11 | # production
12 | /build
13 | 
14 | # misc
15 | .DS_Store
16 | .env.local
17 | .env.development.local
18 | .env.test.local
19 | .env.production.local
20 | 
21 | npm-debug.log*
22 | yarn-debug.log*
23 | yarn-error.log*
24 | 


--------------------------------------------------------------------------------
/README.md:
--------------------------------------------------------------------------------
 1 | # React Javascript Context Api Uygulaması
 2 | 
 3 | <p align="center">
 4 |   <img src="https://cdn.hackernoon.com/images/gp1d3vsm.jpg" height="100%" width="100%" title="hover text">
 5 | </p>
 6 | 
 7 | ## Context Api
 8 | 
 9 | Context, prop’ları her seviyede manuel olarak geçmek zorunda kalmadan bileşen ağacı üzerinden veri iletmenin bir yolunu sağlar.
10 | 
11 | ### Projenin Amacı Nedir ?
12 | 
13 | React Javascript ile useContext() & useReducer hooks kullanarak sizlere global state management Context Api nasıl kullanacağımızı paylaşıyorum.
14 | Bu projede tema yönetimini dark mode yada light bilgisine göre arayüzü nasıl değiştirebileceğimizi context bulunan mesajı nasıl değiştirebileceğimizi basit bir örnek ile sizlere paylaşıyorum.
15 | 
16 | ### Context Api Neden Kullanılırız?
17 | 
18 | Tipik bir React uygulamasında veri prop’lar aracılığıyla yukarıdan aşağıya aktarılır (üst bileşenlerden alt bileşenlere). Fakat bu tür bir kullanım, uygulamadaki birçok bileşen tarafından ihtiyaç duyulan belirli tipteki prop’lar (örneğin; lokalizasyon, arayüz teması) için kullanışsız olabilir. Context, bileşen ağacın her bir seviyesi üzerinden açıkça bir prop geçirmeden, bileşenler arasında bu gibi değerleri paylaşmanın bir yolunu sağlar.
19 | 
20 | ## Contact Us
21 | 
22 | - 🌱 I’m currently learning **Solidity**
23 | 
24 | - 📝 I regularly write articles on [https://www.linkedin.com/in/furkanturkyilmaz/detail/recent-activity/shares/](https://www.linkedin.com/in/furkanturkyilmaz/detail/recent-activity/shares/)
25 | 
26 | - 🔮 I develop dApps project with React Javascript & React Native. 
27 | 
28 | - 🤭 I love Web 3.0 Technology.
29 | 
30 | - 💡 I'm mentor for Javascript, React , React Native,Blockchain , Solidity, Web 3
31 | 
32 | - 💬 Ask me about **React JS,React Native,Javascript,Solidity,Blockchain,Web 3**
33 | 
34 | - 📫 Email **trkyilmazfurkan@gmail.com**
35 | 
36 | - <a href="https://linkedin.com/in/furkanturkyilmaz" target="blank"><img align="center" src="https://raw.githubusercontent.com/rahuldkjain/github-profile-readme-generator/master/src/images/icons/Social/linked-in-alt.svg" alt="furkanturkyilmaz" height="20" width="20" /></a> LinkedIn **https://www.linkedin.com/in/furkanturkyilmaz/**
37 | 
38 | - <a href="https://linkedin.com/in/furkanturkyilmaz" target="blank"><img align="center" src="https://cdn.jsdelivr.net/npm/simple-icons@3.0.1/icons/github.svg" alt="furkanturkyilmaz" height="20" width="20" /></a> GitHub **https://github.com/fturkyilmaz**
39 | 
40 | 
41 | ## React Native Ücretsiz Eğitim İçerikleri
42 | 
43 | React Native & React Js düzenlemiş olduğum bootcamp ve coding challenge kayıtlarını sizlere paylaşıyorum.
44 | 
45 | React Native Bootcamp : [https://www.youtube.com/playlist?list=PLT_pHf0diFdMX1AgnNOUqRkO9FvloedXG](https://www.youtube.com/playlist?list=PLT_pHf0diFdMX1AgnNOUqRkO9FvloedXG)
46 | 
47 | React Native Coding Challenge : [https://www.youtube.com/playlist?list=PLT_pHf0diFdMvewldSeN-dD-L9YVq1xbm](https://www.youtube.com/playlist?list=PLT_pHf0diFdMvewldSeN-dD-L9YVq1xbm) 
48 | 
49 | 
50 | **React Native,React Js ,Web 3.0 bootcamp  ve workshop düzenlemek isterseniz benimle iletişime geçebilirsiniz.** &nbsp;
51 | 
52 | **React Native,React Js ,Javascript ekosisteminde ücretli mentorlük hizmeti vermekteyim.**  &nbsp;
53 | 
54 | 
55 | #web3 #javascript #blockchain  #reactnative #reactjs #solidity #web3
56 | 


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/package.json:
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 1 | {
 2 |   "name": "react-javascript-context-api",
 3 |   "version": "0.1.0",
 4 |   "private": true,
 5 |   "dependencies": {
 6 |     "@testing-library/jest-dom": "^5.16.2",
 7 |     "@testing-library/react": "^12.1.4",
 8 |     "@testing-library/user-event": "^13.5.0",
 9 |     "react": "^17.0.2",
10 |     "react-dom": "^17.0.2",
11 |     "react-scripts": "5.0.0",
12 |     "web-vitals": "^2.1.4"
13 |   },
14 |   "scripts": {
15 |     "start": "react-scripts start",
16 |     "build": "react-scripts build",
17 |     "test": "react-scripts test",
18 |     "eject": "react-scripts eject"
19 |   },
20 |   "eslintConfig": {
21 |     "extends": [
22 |       "react-app",
23 |       "react-app/jest"
24 |     ]
25 |   },
26 |   "browserslist": {
27 |     "production": [
28 |       ">0.2%",
29 |       "not dead",
30 |       "not op_mini all"
31 |     ],
32 |     "development": [
33 |       "last 1 chrome version",
34 |       "last 1 firefox version",
35 |       "last 1 safari version"
36 |     ]
37 |   }
38 | }
39 | 


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/public/favicon.ico:
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https://raw.githubusercontent.com/fturkyilmaz/react-javascript-context-api/308f9bc29b7cb04795213ce09fda06dc560133a0/public/favicon.ico


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/public/index.html:
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 1 | <!DOCTYPE html>
 2 | <html lang="en">
 3 | 
 4 | <head>
 5 |   <meta charset="utf-8" />
 6 |   <link rel="icon" href="%PUBLIC_URL%/favicon.ico" />
 7 |   <meta name="viewport" content="width=device-width, initial-scale=1" />
 8 |   <meta name="theme-color" content="#000000" />
 9 |   <meta name="description" content="Web site created using create-react-app" />
10 |   <link rel="apple-touch-icon" href="%PUBLIC_URL%/logo192.png" />
11 |   <!--
12 |       manifest.json provides metadata used when your web app is installed on a
13 |       user's mobile device or desktop. See https://developers.google.com/web/fundamentals/web-app-manifest/
14 |     -->
15 |   <link rel="manifest" href="%PUBLIC_URL%/manifest.json" />
16 |   <!--
17 |       Notice the use of %PUBLIC_URL% in the tags above.
18 |       It will be replaced with the URL of the `public` folder during the build.
19 |       Only files inside the `public` folder can be referenced from the HTML.
20 | 
21 |       Unlike "/favicon.ico" or "favicon.ico", "%PUBLIC_URL%/favicon.ico" will
22 |       work correctly both with client-side routing and a non-root public URL.
23 |       Learn how to configure a non-root public URL by running `npm run build`.
24 |     -->
25 |   <title>Furkan Türkyılmaz Context Api</title>
26 | </head>
27 | 
28 | <body>
29 |   <noscript>You need to enable JavaScript to run this app.</noscript>
30 |   <div id="root"></div>
31 |   <!--
32 |       This HTML file is a template.
33 |       If you open it directly in the browser, you will see an empty page.
34 | 
35 |       You can add webfonts, meta tags, or analytics to this file.
36 |       The build step will place the bundled scripts into the <body> tag.
37 | 
38 |       To begin the development, run `npm start` or `yarn start`.
39 |       To create a production bundle, use `npm run build` or `yarn build`.
40 |     -->
41 | </body>
42 | 
43 | </html>


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/public/logo192.png:
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https://raw.githubusercontent.com/fturkyilmaz/react-javascript-context-api/308f9bc29b7cb04795213ce09fda06dc560133a0/public/logo192.png


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/public/logo512.png:
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https://raw.githubusercontent.com/fturkyilmaz/react-javascript-context-api/308f9bc29b7cb04795213ce09fda06dc560133a0/public/logo512.png


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/public/manifest.json:
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 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 |       "src": "logo192.png",
12 |       "type": "image/png",
13 |       "sizes": "192x192"
14 |     },
15 |     {
16 |       "src": "logo512.png",
17 |       "type": "image/png",
18 |       "sizes": "512x512"
19 |     }
20 |   ],
21 |   "start_url": ".",
22 |   "display": "standalone",
23 |   "theme_color": "#000000",
24 |   "background_color": "#ffffff"
25 | }
26 | 


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/public/robots.txt:
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1 | # https://www.robotstxt.org/robotstxt.html
2 | User-agent: *
3 | Disallow:
4 | 


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/src/App.css:
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 1 | .App {
 2 |   text-align: center;
 3 | }
 4 | 
 5 | .App-logo {
 6 |   height: 40vmin;
 7 |   pointer-events: none;
 8 | }
 9 | 
10 | body.light {
11 |   background: "white";
12 |   color: "#333";
13 | }
14 | 
15 | body.dark {
16 |   background-color: #282c34;
17 |   color: #eee;
18 | }
19 | 
20 | @media (prefers-reduced-motion: no-preference) {
21 |   .App-logo {
22 |     animation: App-logo-spin infinite 20s linear;
23 |   }
24 | }
25 | 
26 | .App-header {
27 |   min-height: 100vh;
28 |   display: flex;
29 |   flex-direction: column;
30 |   align-items: center;
31 |   justify-content: center;
32 |   font-size: calc(10px + 2vmin);
33 | }
34 | 
35 | .App-link {
36 |   color: #61dafb;
37 |   padding-top: 1.5rem;
38 | }
39 | 
40 | @keyframes App-logo-spin {
41 |   from {
42 |     transform: rotate(0deg);
43 |   }
44 |   to {
45 |     transform: rotate(360deg);
46 |   }
47 | }
48 | 
49 | .buttonContainer {
50 |   display: flex;
51 |   flex-direction: row;
52 |   align-items: center;
53 |   justify-content: center;
54 | }
55 | 
56 | .button {
57 |   background-color: #61dafb;
58 |   border-radius: 10px;
59 |   border: none;
60 |   color: white;
61 |   padding: 15px 32px 15px 32px;
62 |   margin: 10px;
63 |   text-align: center;
64 |   text-decoration: none;
65 |   display: inline-block;
66 |   font-size: 18px;
67 |   font-weight: bold;
68 | }
69 | 


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/src/App.js:
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 1 | import { useEffect } from "react";
 2 | import logo from "./logo.svg";
 3 | import "./App.css";
 4 | import { useContext, MainContext } from "../src/context";
 5 | 
 6 | function App() {
 7 |   const [state, dispatch] = useContext(MainContext);
 8 | 
 9 |   const { theme, message, linkedin } = state;
10 | 
11 |   console.log("Context", state);
12 | 
13 |   useEffect(() => {
14 |     document.body.className = theme;
15 |   }, [theme]);
16 | 
17 |   return (
18 |     <div className="App">
19 |       <header className="App-header">
20 |         <img src={logo} className="App-logo" alt="logo" />
21 |         <h3>{message}</h3>
22 | 
23 |         <div className="buttonContainer">
24 |           <button
25 |             onClick={() => dispatch({ type: "TOGGLE_THEME" })}
26 |             className="button">
27 |             Toggle Theme
28 |           </button>
29 | 
30 |           <button
31 |             onClick={() =>
32 |               dispatch({
33 |                 type: "TOGGLE_MESSAGE",
34 |                 payload: "Hi everyone! I'm Furkan TÜRKYILMAZ",
35 |               })
36 |             }
37 |             className="button">
38 |             Change Message
39 |           </button>
40 |         </div>
41 |         <a
42 |           className="App-link"
43 |           href={linkedin}
44 |           target="_blank"
45 |           rel="noopener noreferrer">
46 |           LinkedIn
47 |         </a>
48 |       </header>
49 |     </div>
50 |   );
51 | }
52 | 
53 | export default App;
54 | 


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/src/App.test.js:
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1 | import { render, screen } from '@testing-library/react';
2 | import App from './App';
3 | 
4 | test('renders learn react link', () => {
5 |   render(<App />);
6 |   const linkElement = screen.getByText(/learn react/i);
7 |   expect(linkElement).toBeInTheDocument();
8 | });
9 | 


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/src/context.js:
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 1 | import { createContext, useContext, useReducer } from "react";
 2 | 
 3 | //Context oluşturuyoruz.
 4 | 
 5 | const MainContext = createContext();
 6 | 
 7 | const initialState = {
 8 |   theme: "light",
 9 |   message:
10 |     "Furkan Türkyılmaz Context Api Global State Management Simple Example",
11 |   linkedin: "https://www.linkedin.com/in/furkanturkyilmaz/",
12 | };
13 | 
14 | // Reducer Method tanımlıyoruz.
15 | 
16 | const reducer = (state, action) => {
17 |   switch (action.type) {
18 |     case "TOGGLE_THEME":
19 |       return {
20 |         ...state,
21 |         theme: state.theme === "light" ? "dark" : "light",
22 |       };
23 | 
24 |     case "TOGGLE_MESSAGE":
25 |       return {
26 |         ...state,
27 |         message: action.payload,
28 |       };
29 | 
30 |     default:
31 |       return state;
32 |   }
33 | };
34 | 
35 | //Provider içinde state ve dispatch değişkenlerini kullanıyoruz.
36 | 
37 | const ContextProvider = ({ children }) => {
38 |   const [state, dispatch] = useReducer(reducer, initialState);
39 | 
40 |   return (
41 |     <MainContext.Provider value={[state, dispatch]}>
42 |       {children}
43 |     </MainContext.Provider>
44 |   );
45 | };
46 | 
47 | export { MainContext, ContextProvider, useContext };
48 | 


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/src/index.css:
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 1 | body {
 2 |   margin: 0;
 3 |   font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'Roboto', 'Oxygen',
 4 |     'Ubuntu', 'Cantarell', 'Fira Sans', 'Droid Sans', 'Helvetica Neue',
 5 |     sans-serif;
 6 |   -webkit-font-smoothing: antialiased;
 7 |   -moz-osx-font-smoothing: grayscale;
 8 | }
 9 | 
10 | code {
11 |   font-family: source-code-pro, Menlo, Monaco, Consolas, 'Courier New',
12 |     monospace;
13 | }
14 | 


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/src/index.js:
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 1 | import React from "react";
 2 | import ReactDOM from "react-dom";
 3 | import "./index.css";
 4 | import App from "./App";
 5 | import reportWebVitals from "./reportWebVitals";
 6 | import { ContextProvider } from "./context";
 7 | 
 8 | // Projemizi ContextProvider ile bağlayalım.
 9 | 
10 | ReactDOM.render(
11 |   <React.StrictMode>
12 |     <ContextProvider>
13 |       <App />
14 |     </ContextProvider>
15 |   </React.StrictMode>,
16 |   document.getElementById("root")
17 | );
18 | 
19 | reportWebVitals();
20 | 


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/src/logo.svg:
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1 | <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>


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/src/reportWebVitals.js:
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 1 | const reportWebVitals = onPerfEntry => {
 2 |   if (onPerfEntry && onPerfEntry instanceof Function) {
 3 |     import('web-vitals').then(({ getCLS, getFID, getFCP, getLCP, getTTFB }) => {
 4 |       getCLS(onPerfEntry);
 5 |       getFID(onPerfEntry);
 6 |       getFCP(onPerfEntry);
 7 |       getLCP(onPerfEntry);
 8 |       getTTFB(onPerfEntry);
 9 |     });
10 |   }
11 | };
12 | 
13 | export default reportWebVitals;
14 | 


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/src/setupTests.js:
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1 | // jest-dom adds custom jest matchers for asserting on DOM nodes.
2 | // allows you to do things like:
3 | // expect(element).toHaveTextContent(/react/i)
4 | // learn more: https://github.com/testing-library/jest-dom
5 | import '@testing-library/jest-dom';
6 | 


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