Add React-Redux boilerplate

2020-12-20 18:05:37 +05:30
parent c53529f8b4
commit a4a55afa70
19 changed files with 12165 additions and 0 deletions
--- a/src/App.css
+++ b/src/App.css
@@ -0,0 +1,39 @@
+.App {
+  text-align: center;
+}
+
+.App-logo {
+  height: 40vmin;
+  pointer-events: none;
+}
+
+@media (prefers-reduced-motion: no-preference) {
+  .App-logo {
+    animation: App-logo-float infinite 3s ease-in-out;
+  }
+}
+
+.App-header {
+  min-height: 100vh;
+  display: flex;
+  flex-direction: column;
+  align-items: center;
+  justify-content: center;
+  font-size: calc(10px + 2vmin);
+}
+
+.App-link {
+  color: rgb(112, 76, 182);
+}
+
+@keyframes App-logo-float {
+  0% {
+    transform: translateY(0);
+  }
+  50% {
+    transform: translateY(10px)
+  }
+  100% {
+    transform: translateY(0px)
+  }
+}
--- a/src/App.js
+++ b/src/App.js
@@ -0,0 +1,18 @@
+import React from "react";
+import { Counter } from "./features/counter/Counter";
+import "./App.css";
+
+function App() {
+	return (
+		<div className="App">
+			<header className="App-header">
+				<Counter />
+				<p>
+					Edit <code>src/App.js</code> and save to reload.
+				</p>
+			</header>
+		</div>
+	);
+}
+
+export default App;
--- a/src/app/store.js
+++ b/src/app/store.js
@@ -0,0 +1,8 @@
+import { configureStore } from "@reduxjs/toolkit";
+import counterReducer from "../features/counter/counterSlice";
+
+export default configureStore({
+	reducer: {
+		counter: counterReducer,
+	},
+});
--- a/src/features/counter/Counter.js
+++ b/src/features/counter/Counter.js
@@ -0,0 +1,58 @@
+import React, { useState } from "react";
+import { useSelector, useDispatch } from "react-redux";
+import {
+	decrement,
+	increment,
+	incrementByAmount,
+	incrementAsync,
+	selectCount,
+} from "./counterSlice";
+import styles from "./Counter.module.css";
+
+export function Counter() {
+	const count = useSelector(selectCount);
+	const dispatch = useDispatch();
+	const [incrementAmount, setIncrementAmount] = useState("2");
+
+	return (
+		<div>
+			<div className={styles.row}>
+				<button
+					className={styles.button}
+					aria-label="Increment value"
+					onClick={() => dispatch(increment())}
+				>
+					+
+				</button>
+				<span className={styles.value}>{count}</span>
+				<button
+					className={styles.button}
+					aria-label="Decrement value"
+					onClick={() => dispatch(decrement())}
+				>
+					-
+				</button>
+			</div>
+			<div className={styles.row}>
+				<input
+					className={styles.textbox}
+					aria-label="Set increment amount"
+					value={incrementAmount}
+					onChange={e => setIncrementAmount(e.target.value)}
+				/>
+				<button
+					className={styles.button}
+					onClick={() => dispatch(incrementByAmount(Number(incrementAmount) || 0))}
+				>
+					Add Amount
+				</button>
+				<button
+					className={styles.asyncButton}
+					onClick={() => dispatch(incrementAsync(Number(incrementAmount) || 0))}
+				>
+					Add Async
+				</button>
+			</div>
+		</div>
+	);
+}
--- a/src/features/counter/Counter.module.css
+++ b/src/features/counter/Counter.module.css
@@ -0,0 +1,74 @@
+.row {
+  display: flex;
+  align-items: center;
+  justify-content: center;
+}
+
+.row:not(:last-child) {
+  margin-bottom: 16px;
+}
+
+.value {
+  font-size: 78px;
+  padding-left: 16px;
+  padding-right: 16px;
+  margin-top: 2px;
+  font-family: 'Courier New', Courier, monospace;
+}
+
+.button {
+  appearance: none;
+  background: none;
+  font-size: 32px;
+  padding-left: 12px;
+  padding-right: 12px;
+  outline: none;
+  border: 2px solid transparent;
+  color: rgb(112, 76, 182);
+  padding-bottom: 4px;
+  cursor: pointer;
+  background-color: rgba(112, 76, 182, 0.1);
+  border-radius: 2px;
+  transition: all 0.15s;
+}
+
+.textbox {
+  font-size: 32px;
+  padding: 2px;
+  width: 64px;
+  text-align: center;
+  margin-right: 8px;
+}
+
+.button:hover, .button:focus {
+  border: 2px solid rgba(112, 76, 182, 0.4);
+}
+
+.button:active {
+  background-color: rgba(112, 76, 182, 0.2);
+}
+
+.asyncButton {
+  composes: button;
+  position: relative;
+  margin-left: 8px;
+}
+
+.asyncButton:after {
+  content: "";
+  background-color: rgba(112, 76, 182, 0.15);
+  display: block;
+  position: absolute;
+  width: 100%;
+  height: 100%;
+  left: 0;
+  top: 0;
+  opacity: 0;
+  transition: width 1s linear, opacity 0.5s ease 1s;
+}
+
+.asyncButton:active:after {
+  width: 0%;
+  opacity: 1;
+  transition: 0s
+}
--- a/src/features/counter/counterSlice.js
+++ b/src/features/counter/counterSlice.js
@@ -0,0 +1,42 @@
+import { createSlice } from "@reduxjs/toolkit";
+
+export const counterSlice = createSlice({
+	name: "counter",
+	initialState: {
+		value: 0,
+	},
+	reducers: {
+		increment: state => {
+			// Redux Toolkit allows us to write "mutating" logic in reducers. It
+			// doesn"t actually mutate the state because it uses the Immer library,
+			// which detects changes to a "draft state" and produces a brand new
+			// immutable state based off those changes
+			state.value += 1;
+		},
+		decrement: state => {
+			state.value -= 1;
+		},
+		incrementByAmount: (state, action) => {
+			state.value += action.payload;
+		},
+	},
+});
+
+export const { increment, decrement, incrementByAmount } = counterSlice.actions;
+
+// The function below is called a thunk and allows us to perform async logic. It
+// can be dispatched like a regular action: `dispatch(incrementAsync(10))`. This
+// will call the thunk with the `dispatch` function as the first argument. Async
+// code can then be executed and other actions can be dispatched
+export const incrementAsync = amount => dispatch => {
+	setTimeout(() => {
+		dispatch(incrementByAmount(amount));
+	}, 1000);
+};
+
+// The function below is called a selector and allows us to select a value from
+// the state. Selectors can also be defined inline where they"re used instead of
+// in the slice file. For example: `useSelector((state) => state.counter.value)`
+export const selectCount = state => state.counter.value;
+
+export default counterSlice.reducer;
--- a/src/index.css
+++ b/src/index.css
@@ -0,0 +1,13 @@
+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;
+}
--- a/src/index.js
+++ b/src/index.js
@@ -0,0 +1,21 @@
+import React from "react";
+import ReactDOM from "react-dom";
+import "./index.css";
+import App from "./App";
+import store from "./app/store";
+import { Provider } from "react-redux";
+import * as serviceWorker from "./serviceWorker";
+
+ReactDOM.render(
+	<React.StrictMode>
+		<Provider store={store}>
+			<App />
+		</Provider>
+	</React.StrictMode>,
+	document.getElementById("root")
+);
+
+// If you want your app to work offline and load faster, you can change
+// unregister() to register() below. Note this comes with some pitfalls.
+// Learn more about service workers: https://bit.ly/CRA-PWA
+serviceWorker.unregister();
--- a/src/serviceWorker.js
+++ b/src/serviceWorker.js
@@ -0,0 +1,137 @@
+// This optional code is used to register a service worker.
+// register() is not called by default.
+
+// This lets the app load faster on subsequent visits in production, and gives
+// it offline capabilities. However, it also means that developers (and users)
+// will only see deployed updates on subsequent visits to a page, after all the
+// existing tabs open on the page have been closed, since previously cached
+// resources are updated in the background.
+
+// To learn more about the benefits of this model and instructions on how to
+// opt-in, read https://bit.ly/CRA-PWA
+
+const isLocalhost = Boolean(
+	window.location.hostname === "localhost" ||
+	// [::1] is the IPv6 localhost address.
+	window.location.hostname === "[::1]" ||
+	// 127.0.0.0/8 are considered localhost for IPv4.
+	window.location.hostname.match(
+		/^127(?:\.(?:25[0-5]|2[0-4][0-9]|[01]?[0-9][0-9]?)){3}$/
+	)
+);
+
+export function register(config) {
+	if (process.env.NODE_ENV === "production" && "serviceWorker" in navigator) {
+		// The URL constructor is available in all browsers that support SW.
+		const publicUrl = new URL(process.env.PUBLIC_URL, window.location.href);
+		if (publicUrl.origin !== window.location.origin) {
+			// Our service worker won"t work if PUBLIC_URL is on a different origin
+			// from what our page is served on. This might happen if a CDN is used to
+			// serve assets; see https://github.com/facebook/create-react-app/issues/2374
+			return;
+		}
+
+		window.addEventListener("load", () => {
+			const swUrl = `${process.env.PUBLIC_URL}/service-worker.js`;
+
+			if (isLocalhost) {
+				// This is running on localhost. Let"s check if a service worker still exists or not.
+				checkValidServiceWorker(swUrl, config);
+
+				// Add some additional logging to localhost, pointing developers to the
+				// service worker/PWA documentation.
+				navigator.serviceWorker.ready.then(() => {
+					console.log(
+						"This web app is being served cache-first by a service " +
+						"worker. To learn more, visit https://bit.ly/CRA-PWA"
+					);
+				});
+			} else {
+				// Is not localhost. Just register service worker
+				registerValidSW(swUrl, config);
+			}
+		});
+	}
+}
+
+function registerValidSW(swUrl, config) {
+	navigator.serviceWorker
+		.register(swUrl)
+		.then(registration => {
+			registration.onupdatefound = () => {
+				const installingWorker = registration.installing;
+				if (installingWorker == null) {
+					return;
+				}
+				installingWorker.onstatechange = () => {
+					if (installingWorker.state === "installed") {
+						if (navigator.serviceWorker.controller) {
+							// At this point, the updated precached content has been fetched,
+							// but the previous service worker will still serve the older
+							// content until all client tabs are closed.
+							console.log(
+								"New content is available and will be used when all " +
+								"tabs for this page are closed. See https://bit.ly/CRA-PWA."
+							);
+
+							// Execute callback
+							if (config && config.onUpdate) {
+								config.onUpdate(registration);
+							}
+						} else {
+							// At this point, everything has been precached.
+							// It"s the perfect time to display a
+							// "Content is cached for offline use." message.
+							console.log("Content is cached for offline use.");
+
+							// Execute callback
+							if (config && config.onSuccess) {
+								config.onSuccess(registration);
+							}
+						}
+					}
+				};
+			};
+		})
+		.catch(error => {
+			console.error("Error during service worker registration:", error);
+		});
+}
+
+function checkValidServiceWorker(swUrl, config) {
+	// Check if the service worker can be found. If it can"t reload the page.
+	fetch(swUrl, {
+		headers: { "Service-Worker": "script" },
+	})
+		.then(response => {
+			// Ensure service worker exists, and that we really are getting a JS file.
+			const contentType = response.headers.get("content-type");
+			if (
+				response.status === 404 ||
+				(contentType != null && contentType.indexOf("javascript") === -1)
+			) {
+				// No service worker found. Probably a different app. Reload the page.
+				navigator.serviceWorker.ready.then(registration => {
+					registration.unregister().then(() => {
+						window.location.reload();
+					});
+				});
+			} else {
+				// Service worker found. Proceed as normal.
+				registerValidSW(swUrl, config);
+			}
+		})
+		.catch(() => {
+			console.log(
+				"No internet connection found. App is running in offline mode."
+			);
+		});
+}
+
+export function unregister() {
+	if ("serviceWorker" in navigator) {
+		navigator.serviceWorker.ready.then(registration => {
+			registration.unregister();
+		});
+	}
+}