starbucks pwa

store one copy of each avatar. varStorageurl = Request.url.replace (/-\dx\.jpg$/, "); //Todo:return images from the "Wittr-content-imgs" cache //if they ' re in there. But afterwards, go to the network //To update the entry in the cache. // //Note that this is slightly different to servephoto! returnCaches.open (Contentimgscache). Then (function(cache) {returnCache.match (Storageurl). Then (function(response) {varNetfetchresponse = Fetch (Request). Then (function(networkresponse) {cache.p

Intead of Cache The root floder, we want to cache skeleton instead. self.addeventlistener (' Install ', function function return Cache.addall ([ '/ ' js/main.js ' ' css/main.css ' , ' imgs/icon.png ' , ' https://fonts.gstatic.com/s /roboto/v15/2ux7wltfw3w8tcltuvlfyq.woff ' , ' https://fonts.gstatic.com/s /roboto/v15/d-6iyplofoccackzxwxsod8e0i7kzn-epnyo3hzu7kw.woff ' Respond to requests for the root page with thepage skeleton from the cache:Self.addeventlisten

' }); Store.createindex (' by-date ', ' time '); });In _opensocket, we had a function to fetch the old data from the IDB.// Open a connection to the server for live updates function () {... Ws.addeventlistener (function(event) { requestanimationframe() { Indexcontroller. _onsocketmessage (event.data); }); ...};//called when the Web socket sends message dataIndexcontroller.prototype._onsocketmessage =function(data) {varMessages =json.parse (data); This. _dbpromise.then (func

Most of the analysis results show that some tasks of the project have unreasonable logic in allocation and work hours, leading to exceptions in the webpart. Usually, the PWA System maintenance staff will be crazy at this time, because no one changes the settings, the server services are normal, and this logical error occurs inadvertently under the project manager. I felt that the last second was still good, and suddenly I got down. (For administrators

')); Peoplestore.put ({name:"John",//name is the keyAge:23, Favoriteanimal:' Cat ' }); Peoplestore.put ({name:"Joe",//name is the keyAge:21, Favoriteanimal:' Cat ' }); Peoplestore.put ({name:"Jie",//name is the keyAge:22, Favoriteanimal:' Dog ' }); Peoplestore.put ({name:"Jay",//name is the keyAge:24, Favoriteanimal:' Dog ' }); returnTx.complete;}). Then (function() {Console.log ("People is added");}); Dbpromise.then (function(db) {vartx = Db.transaction (' People ', ' ReadWrite ');

(' Updatefound ',function(){ //reg.installing is changed })})Api:linkFor the service worker itself:var sw =// ... logs "Installing"/ /// "Installed" // "activating"/ /" avvtivated"// "redundant" Sw.addeventlistener (function() { // Sw.state has changed })Aslo about:Naviagetor.serviceWorker.controller"Navigator.serviceWorker.controller" refer to the service worker, that controls the page.So if there was no controller, then it means the data was loading from network:if (! Naviga

the root scope, so it's available to all the Child components.2. Our service worker file:// Sw.js Self.addeventlistener ('fetch', function (event) { Console.log (event. request);});Once you fetch the page seond time (first time service work do cache stuff), second time you'll see in the console, the Re is lots of requests log out. Of course, service worker has other event listeners:Self.addeventlistener ('Install', Function (Event) { // ..}); Self.addeventlistener ('Activate', Function

Mainly about Material design (effects/colors/flashy stuff) Components (web Components/polymer) Offline/notifications (Service worker/idb/firebase) Progressive Web App: HTTPS Add to Home screen Splash screen Service worker notifications, BG Sync Offline Service Worker: Send Reminders Sessiong starting/updated/rate Fully offline experience Offline analytices Performance To

Link to CodelabIn this codelab, we'll retrace those steps but this time we'll use a tool called Sw-precache to add offline functionality With only six lines of code. It's never been easier to add service worker support to an existing app, and we'll show you what in this codelab.Learning: What's the Sw-precache tool is and how it can help you being more productive How to add a basic service worker to an existing project using Sw-precache Install:git clone https://gith

) {returnResponse | |fetch (event.request); }) );});The Servephoto ():We want to make sure-things: We don ' t care the photo size, 800px,200px or 40px Because respond object can be is only access once, so we need Clone () the original one and use clone one for the CAHCE, retur n the original one to the browser. functionServephoto (Request) {varStorageurl = Request.url.replace (/-\d+px\.jpg$/, "); returnCaches.open (Contentimgscache). Then (function(cache) {returnCache.match (S

the create the cache, but it was not a useful until we use the cache.To use the cache, we can do:Self.addeventlistener (' Install ',function(event) {varUrlstocache = [ ‘/‘, ' Js/main.js ', ' Css/main.css ', ' Imgs/icon.png ', ' Https://fonts.gstatic.com/s/roboto/v15/2UX7WLTfW3W8TclTUvlFyQ.woff ', ' Https://fonts.gstatic.com/s/roboto/v15/d-6IYplOFocCacKzxwXSOD8E0i7KZn-EPnyo3HZu7kw.woff ' ]; Event.waituntil (//Todo:open A cache named ' Wittr-static-v1 ' //ADD cache The URLs

Label:Use the library indexeddb-promised. Create a database and Stroe: Import IDB from ' IDB '; // Open (db_name, version, CB) var function (upgradedb) { var// CREATE TABLE //put (value, key ) keyvalstore.put (' World ', ' Hello ') ; Notice put () function take value frist then key. Read the key in Stroe: // read "Hello" in "Keyval" Dbpromise.then (function (db) { var// Open a transaction var// read the store return// Get value by key }). Then (function (val)

When we save items to indexdb, we need to think about clean the items or keep those in a short list.Indexcontroller.prototype._onsocketmessage =function (data) {varMessages =json.parse (data); This. _dbpromise.then (function (db) {if(!DB)return; vartx = Db.transaction ('Wittrs','ReadWrite'); varstore = Tx.objectstore ('Wittrs'); Messages.foreach (function (message) {store.put (message); }); //Todo:keep The newest, entries in ' Wittrs ',//But delete the rest. // //hint:you can use. open