Crab Fit PWA upgrade

crabfit-frontend/package.json

@@ -12,6 +12,18 @@
     "@types/node": "^14.14.31",
     "@types/react": "^17.0.2",
     "@types/react-dom": "^17.0.1",
+    "workbox-background-sync": "^5.1.3",
+    "workbox-broadcast-update": "^5.1.3",
+    "workbox-cacheable-response": "^5.1.3",
+    "workbox-core": "^5.1.3",
+    "workbox-expiration": "^5.1.3",
+    "workbox-google-analytics": "^5.1.3",
+    "workbox-navigation-preload": "^5.1.3",
+    "workbox-precaching": "^5.1.3",
+    "workbox-range-requests": "^5.1.3",
+    "workbox-routing": "^5.1.3",
+    "workbox-strategies": "^5.1.3",
+    "workbox-streams": "^5.1.3",
     "axios": "^0.21.1",
     "dayjs": "^1.10.4",
     "react": "^17.0.1",

crabfit-frontend/src/App.tsx

@@ -18,9 +18,15 @@ const App = () => {
   const colortheme = useSettingsStore(state => state.theme);
 	const darkQuery = window.matchMedia('(prefers-color-scheme: dark)');
 	const [isDark, setIsDark] = useState(darkQuery.matches);
+  const [offline, setOffline] = useState(!window.navigator.onLine);
 
 	darkQuery.addListener(e => colortheme === 'System' && setIsDark(e.matches));
 
+  useEffect(() => {
+    window.addEventListener('offline', () => setOffline(true));
+    window.addEventListener('online', () => setOffline(false));
+  }, []);
+
   useEffect(() => {
     setIsDark(colortheme === 'System' ? darkQuery.matches : colortheme === 'Dark');
   }, [colortheme, darkQuery.matches]);
@@ -28,7 +34,6 @@ const App = () => {
   return (
 		<BrowserRouter>
 			<ThemeProvider theme={theme[isDark ? 'dark' : 'light']}>
-				{process.env.NODE_ENV !== 'production' && <button onClick={() => setIsDark(!isDark)} style={{ position: 'absolute', top: 0, left: 0, zIndex: 1000 }}>{isDark ? 'dark' : 'light'}</button>}
 				<Global
 					styles={theme => ({
 						html: {
@@ -68,12 +73,12 @@ const App = () => {
 		    <Switch>
 					<Route path="/" exact render={props => (
             <Suspense fallback={<Loading />}>
-              <Home {...props} />
+              <Home offline={offline} {...props} />
             </Suspense>
           )} />
 					<Route path="/:id" exact render={props => (
             <Suspense fallback={<Loading />}>
-              <Event {...props} />
+              <Event offline={offline} {...props} />
             </Suspense>
           )} />
 				</Switch>

crabfit-frontend/src/index.tsx

@@ -1,6 +1,7 @@
 import React from 'react';
 import ReactDOM from 'react-dom';
 import App from './App';
+import * as serviceWorkerRegistration from './serviceWorkerRegistration';
 import reportWebVitals from './reportWebVitals';
 
 ReactDOM.render(
@@ -10,6 +11,8 @@ ReactDOM.render(
   document.getElementById('root')
 );
 
+serviceWorkerRegistration.register();
+
 // 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

crabfit-frontend/src/pages/Event/Event.tsx

@@ -49,6 +49,7 @@ const Event = (props) => {
 
 	const { register, handleSubmit } = useForm();
 	const { id } = props.match.params;
+  const { offline } = props;
 	const [timezone, setTimezone] = useState(Intl.DateTimeFormat().resolvedOptions().timeZone);
 	const [user, setUser] = useState(null);
 	const [password, setPassword] = useState(null);
@@ -297,10 +298,17 @@ const Event = (props) => {
 						</ShareInfo>
 					</>
 				) : (
-					<div style={{ margin: '100px 0' }}>
+          offline ? (
-						<EventName>Event not found</EventName>
+            <div style={{ margin: '100px 0' }}>
-						<ShareInfo>Check that the url you entered is correct.</ShareInfo>
+  						<EventName>You are offline</EventName>
-					</div>
+  						<ShareInfo>A Crab Fit doesn't work offline.<br />Make sure you're connected to the internet and try again.</ShareInfo>
+  					</div>
+          ) : (
+  					<div style={{ margin: '100px 0' }}>
+  						<EventName>Event not found</EventName>
+  						<ShareInfo>Check that the url you entered is correct.</ShareInfo>
+  					</div>
+          )
 				)}
 			</StyledMain>
 

crabfit-frontend/src/pages/Home/Home.tsx

@@ -32,6 +32,7 @@ import {
 	Stat,
 	StatNumber,
 	StatLabel,
+  OfflineMessage,
 } from './homeStyle';
 
 import api from 'services';
@@ -43,7 +44,7 @@ dayjs.extend(utc);
 dayjs.extend(timezone);
 dayjs.extend(customParseFormat);
 
-const Home = () => {
+const Home = ({ offline }) => {
 	const { register, handleSubmit } = useForm({
 		defaultValues: {
 			timezone: Intl.DateTimeFormat().resolvedOptions().timeZone,
@@ -154,52 +155,59 @@ const Home = () => {
 					<a href="#about">About</a> / <a href="#donate">Donate</a>
 				</Links>
 
-				<CreateForm onSubmit={handleSubmit(onSubmit)} id="create">
+        {offline ? (
-					<TextField
+          <OfflineMessage>
-						label="Give your event a name!"
+            <h1>🦀📵</h1>
-						subLabel="Or leave blank to generate one"
+            <P>You can't create a Crab Fit when you don't have an internet connection. Please make sure you're connected.</P>
-						type="text"
+          </OfflineMessage>
-						name="name"
+        ) : (
-						id="name"
+  				<CreateForm onSubmit={handleSubmit(onSubmit)} id="create">
-						register={register}
+  					<TextField
-					/>
+  						label="Give your event a name!"
+  						subLabel="Or leave blank to generate one"
+  						type="text"
+  						name="name"
+  						id="name"
+  						register={register}
+  					/>
 
-					<CalendarField
+  					<CalendarField
-						label="What dates might work?"
+  						label="What dates might work?"
-						subLabel="Click and drag to select"
+  						subLabel="Click and drag to select"
-						name="dates"
+  						name="dates"
-						id="dates"
+  						id="dates"
-						required
+  						required
-						register={register}
+  						register={register}
-					/>
+  					/>
 
-					<TimeRangeField
+  					<TimeRangeField
-						label="What times might work?"
+  						label="What times might work?"
-						subLabel="Click and drag to select a time range"
+  						subLabel="Click and drag to select a time range"
-						name="times"
+  						name="times"
-						id="times"
+  						id="times"
-						required
+  						required
-						register={register}
+  						register={register}
-					/>
+  					/>
 
-					<SelectField
+  					<SelectField
-						label="And the timezone"
+  						label="And the timezone"
-						name="timezone"
+  						name="timezone"
-						id="timezone"
+  						id="timezone"
-						register={register}
+  						register={register}
-						options={timezones}
+  						options={timezones}
-						required
+  						required
-						defaultOption="Select..."
+  						defaultOption="Select..."
-					/>
+  					/>
 
-					{error && (
+  					{error && (
-						<Error onClose={() => setError(null)}>{error}</Error>
+  						<Error onClose={() => setError(null)}>{error}</Error>
-					)}
+  					)}
 
-					<Center>
+  					<Center>
-						<Button type="submit" isLoading={isLoading} disabled={isLoading}>Create</Button>
+  						<Button type="submit" isLoading={isLoading} disabled={isLoading}>Create</Button>
-					</Center>
+  					</Center>
-				</CreateForm>
+  				</CreateForm>
+        )}
 			</StyledMain>
 
 			<AboutSection id="about">
@@ -207,11 +215,11 @@ const Home = () => {
 					<h2>About Crab Fit</h2>
 					<Stats>
 						<Stat>
-							<StatNumber>{stats.eventCount ?? '10+'}</StatNumber>
+							<StatNumber>{stats.eventCount ?? '100+'}</StatNumber>
 							<StatLabel>Events created</StatLabel>
 						</Stat>
 						<Stat>
-							<StatNumber>{stats.personCount ?? '10+'}</StatNumber>
+							<StatNumber>{stats.personCount ?? '100+'}</StatNumber>
 							<StatLabel>Availabilities entered</StatLabel>
 						</Stat>
 					</Stats>

crabfit-frontend/src/pages/Home/homeStyle.ts

@@ -88,3 +88,8 @@ export const StatNumber = styled.span`
 export const StatLabel = styled.span`
 	display: block;
 `;
+
+export const OfflineMessage = styled.div`
+	text-align: center;
+  margin: 50px 0 20px;
+`;

crabfit-frontend/src/service-worker.js

@@ -0,0 +1,90 @@
+/* eslint-disable no-restricted-globals */
+
+// This service worker can be customized!
+// See https://developers.google.com/web/tools/workbox/modules
+// for the list of available Workbox modules, or add any other
+// code you'd like.
+// You can also remove this file if you'd prefer not to use a
+// service worker, and the Workbox build step will be skipped.
+
+import { clientsClaim } from 'workbox-core';
+import { ExpirationPlugin } from 'workbox-expiration';
+import { precacheAndRoute, createHandlerBoundToURL } from 'workbox-precaching';
+import { registerRoute } from 'workbox-routing';
+import { StaleWhileRevalidate, NetworkFirst } from 'workbox-strategies';
+
+clientsClaim();
+
+// Precache all of the assets generated by your build process.
+// Their URLs are injected into the manifest variable below.
+// This variable must be present somewhere in your service worker file,
+// even if you decide not to use precaching. See https://cra.link/PWA
+precacheAndRoute(self.__WB_MANIFEST);
+
+// Set up App Shell-style routing, so that all navigation requests
+// are fulfilled with your index.html shell. Learn more at
+// https://developers.google.com/web/fundamentals/architecture/app-shell
+const fileExtensionRegexp = new RegExp('/[^/?]+\\.[^/]+$');
+registerRoute(
+  // Return false to exempt requests from being fulfilled by index.html.
+  ({ request, url }) => {
+    // If this isn't a navigation, skip.
+    if (request.mode !== 'navigate') {
+      return false;
+    } // If this is a URL that starts with /_, skip.
+
+    if (url.pathname.startsWith('/_')) {
+      return false;
+    } // If this looks like a URL for a resource, because it contains // a file extension, skip.
+
+    if (url.pathname.match(fileExtensionRegexp)) {
+      return false;
+    } // Return true to signal that we want to use the handler.
+
+    return true;
+  },
+  createHandlerBoundToURL(process.env.PUBLIC_URL + '/index.html')
+);
+
+// An example runtime caching route for requests that aren't handled by the
+// precache, in this case same-origin .png requests like those from in public/
+registerRoute(
+  // Add in any other file extensions or routing criteria as needed.
+  ({ url }) => url.origin === self.location.origin && (
+    url.pathname.endsWith('.png')
+    || url.pathname.endsWith('.svg')
+    || url.pathname.endsWith('.jpg')
+    || url.pathname.endsWith('.jpeg')
+    || url.pathname.endsWith('.ico')
+    || url.pathname.endsWith('.ttf')
+    || url.pathname.endsWith('.woff')
+    || url.pathname.endsWith('.woff2')
+  ), // Customize this strategy as needed, e.g., by changing to CacheFirst.
+  new StaleWhileRevalidate({
+    cacheName: 'res',
+    plugins: [
+      // Ensure that once this runtime cache reaches a maximum size the
+      // least-recently used images are removed.
+      new ExpirationPlugin({ maxEntries: 50 }),
+    ],
+  })
+);
+
+// This allows the web app to trigger skipWaiting via
+// registration.waiting.postMessage({type: 'SKIP_WAITING'})
+self.addEventListener('message', (event) => {
+  if (event.data && event.data.type === 'SKIP_WAITING') {
+    self.skipWaiting();
+  }
+});
+
+// Any other custom service worker logic can go here.
+
+registerRoute(
+  ({ url }) => url.origin === self.location.origin && (
+    url.pathname.endsWith('.js')
+    || url.pathname.endsWith('.css')
+    || url.pathname.endsWith('.json')
+  ),
+  new NetworkFirst({ cacheName: 'res' })
+);

crabfit-frontend/src/serviceWorkerRegistration.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://cra.link/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://cra.link/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://cra.link/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();
+      })
+      .catch((error) => {
+        console.error(error.message);
+      });
+  }
+}

crabfit-frontend/yarn.lock

@@ -11352,14 +11352,14 @@ word-wrap@^1.2.3, word-wrap@~1.2.3:
   resolved "https://registry.yarnpkg.com/word-wrap/-/word-wrap-1.2.3.tgz#610636f6b1f703891bd34771ccb17fb93b47079c"
   integrity sha512-Hz/mrNwitNRh/HUAtM/VT/5VH+ygD6DV7mYKZAtHOrbs8U7lvPS6xf7EJKMF0uW1KJCl0H701g3ZGus+muE5vQ==
 
-workbox-background-sync@^5.1.4:
+workbox-background-sync@^5.1.3, workbox-background-sync@^5.1.4:
   version "5.1.4"
   resolved "https://registry.yarnpkg.com/workbox-background-sync/-/workbox-background-sync-5.1.4.tgz#5ae0bbd455f4e9c319e8d827c055bb86c894fd12"
   integrity sha512-AH6x5pYq4vwQvfRDWH+vfOePfPIYQ00nCEB7dJRU1e0n9+9HMRyvI63FlDvtFT2AvXVRsXvUt7DNMEToyJLpSA==
   dependencies:
     workbox-core "^5.1.4"
 
-workbox-broadcast-update@^5.1.4:
+workbox-broadcast-update@^5.1.3, workbox-broadcast-update@^5.1.4:
   version "5.1.4"
   resolved "https://registry.yarnpkg.com/workbox-broadcast-update/-/workbox-broadcast-update-5.1.4.tgz#0eeb89170ddca7f6914fa3523fb14462891f2cfc"
   integrity sha512-HTyTWkqXvHRuqY73XrwvXPud/FN6x3ROzkfFPsRjtw/kGZuZkPzfeH531qdUGfhtwjmtO/ZzXcWErqVzJNdXaA==
@@ -11408,26 +11408,26 @@ workbox-build@^5.1.4:
     workbox-sw "^5.1.4"
     workbox-window "^5.1.4"
 
-workbox-cacheable-response@^5.1.4:
+workbox-cacheable-response@^5.1.3, workbox-cacheable-response@^5.1.4:
   version "5.1.4"
   resolved "https://registry.yarnpkg.com/workbox-cacheable-response/-/workbox-cacheable-response-5.1.4.tgz#9ff26e1366214bdd05cf5a43da9305b274078a54"
   integrity sha512-0bfvMZs0Of1S5cdswfQK0BXt6ulU5kVD4lwer2CeI+03czHprXR3V4Y8lPTooamn7eHP8Iywi5QjyAMjw0qauA==
   dependencies:
     workbox-core "^5.1.4"
 
-workbox-core@^5.1.4:
+workbox-core@^5.1.3, workbox-core@^5.1.4:
   version "5.1.4"
   resolved "https://registry.yarnpkg.com/workbox-core/-/workbox-core-5.1.4.tgz#8bbfb2362ecdff30e25d123c82c79ac65d9264f4"
   integrity sha512-+4iRQan/1D8I81nR2L5vcbaaFskZC2CL17TLbvWVzQ4qiF/ytOGF6XeV54pVxAvKUtkLANhk8TyIUMtiMw2oDg==
 
-workbox-expiration@^5.1.4:
+workbox-expiration@^5.1.3, workbox-expiration@^5.1.4:
   version "5.1.4"
   resolved "https://registry.yarnpkg.com/workbox-expiration/-/workbox-expiration-5.1.4.tgz#92b5df461e8126114943a3b15c55e4ecb920b163"
   integrity sha512-oDO/5iC65h2Eq7jctAv858W2+CeRW5e0jZBMNRXpzp0ZPvuT6GblUiHnAsC5W5lANs1QS9atVOm4ifrBiYY7AQ==
   dependencies:
     workbox-core "^5.1.4"
 
-workbox-google-analytics@^5.1.4:
+workbox-google-analytics@^5.1.3, workbox-google-analytics@^5.1.4:
   version "5.1.4"
   resolved "https://registry.yarnpkg.com/workbox-google-analytics/-/workbox-google-analytics-5.1.4.tgz#b3376806b1ac7d7df8418304d379707195fa8517"
   integrity sha512-0IFhKoEVrreHpKgcOoddV+oIaVXBFKXUzJVBI+nb0bxmcwYuZMdteBTp8AEDJacENtc9xbR0wa9RDCnYsCDLjA==
@@ -11437,35 +11437,35 @@ workbox-google-analytics@^5.1.4:
     workbox-routing "^5.1.4"
     workbox-strategies "^5.1.4"
 
-workbox-navigation-preload@^5.1.4:
+workbox-navigation-preload@^5.1.3, workbox-navigation-preload@^5.1.4:
   version "5.1.4"
   resolved "https://registry.yarnpkg.com/workbox-navigation-preload/-/workbox-navigation-preload-5.1.4.tgz#30d1b720d26a05efc5fa11503e5cc1ed5a78902a"
   integrity sha512-Wf03osvK0wTflAfKXba//QmWC5BIaIZARU03JIhAEO2wSB2BDROWI8Q/zmianf54kdV7e1eLaIEZhth4K4MyfQ==
   dependencies:
     workbox-core "^5.1.4"
 
-workbox-precaching@^5.1.4:
+workbox-precaching@^5.1.3, workbox-precaching@^5.1.4:
   version "5.1.4"
   resolved "https://registry.yarnpkg.com/workbox-precaching/-/workbox-precaching-5.1.4.tgz#874f7ebdd750dd3e04249efae9a1b3f48285fe6b"
   integrity sha512-gCIFrBXmVQLFwvAzuGLCmkUYGVhBb7D1k/IL7pUJUO5xacjLcFUaLnnsoVepBGAiKw34HU1y/YuqvTKim9qAZA==
   dependencies:
     workbox-core "^5.1.4"
 
-workbox-range-requests@^5.1.4:
+workbox-range-requests@^5.1.3, workbox-range-requests@^5.1.4:
   version "5.1.4"
   resolved "https://registry.yarnpkg.com/workbox-range-requests/-/workbox-range-requests-5.1.4.tgz#7066a12c121df65bf76fdf2b0868016aa2bab859"
   integrity sha512-1HSujLjgTeoxHrMR2muDW2dKdxqCGMc1KbeyGcmjZZAizJTFwu7CWLDmLv6O1ceWYrhfuLFJO+umYMddk2XMhw==
   dependencies:
     workbox-core "^5.1.4"
 
-workbox-routing@^5.1.4:
+workbox-routing@^5.1.3, workbox-routing@^5.1.4:
   version "5.1.4"
   resolved "https://registry.yarnpkg.com/workbox-routing/-/workbox-routing-5.1.4.tgz#3e8cd86bd3b6573488d1a2ce7385e547b547e970"
   integrity sha512-8ljknRfqE1vEQtnMtzfksL+UXO822jJlHTIR7+BtJuxQ17+WPZfsHqvk1ynR/v0EHik4x2+826Hkwpgh4GKDCw==
   dependencies:
     workbox-core "^5.1.4"
 
-workbox-strategies@^5.1.4:
+workbox-strategies@^5.1.3, workbox-strategies@^5.1.4:
   version "5.1.4"
   resolved "https://registry.yarnpkg.com/workbox-strategies/-/workbox-strategies-5.1.4.tgz#96b1418ccdfde5354612914964074d466c52d08c"
   integrity sha512-VVS57LpaJTdjW3RgZvPwX0NlhNmscR7OQ9bP+N/34cYMDzXLyA6kqWffP6QKXSkca1OFo/v6v7hW7zrrguo6EA==
@@ -11473,7 +11473,7 @@ workbox-strategies@^5.1.4:
     workbox-core "^5.1.4"
     workbox-routing "^5.1.4"
 
-workbox-streams@^5.1.4:
+workbox-streams@^5.1.3, workbox-streams@^5.1.4:
   version "5.1.4"
   resolved "https://registry.yarnpkg.com/workbox-streams/-/workbox-streams-5.1.4.tgz#05754e5e3667bdc078df2c9315b3f41210d8cac0"
   integrity sha512-xU8yuF1hI/XcVhJUAfbQLa1guQUhdLMPQJkdT0kn6HP5CwiPOGiXnSFq80rAG4b1kJUChQQIGPrq439FQUNVrw==