An app in 3 days [with an intro to PWA/Polymer]

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3 DAYS A N A P P I N ( M O R E O R L E S S )

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ӞԫӣࢥԲمӠكԜ܈ݣ傀 ፓ෭์กॠӧय़ੜஞமӾ࿜ᅉ ࢿᔭ๙຋༏ਦՈفڊݗ樌槹樄 ๜᥺ਞঀካኦ୙ᛔ૩አࡋ揌ಋ ᜎሴᡩێઊྋྊ㾴

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@NOTWALDORF

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@NOTWALDORF NEELIX

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@NOTWALDORF EMOJINEER

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@NOTWALDORF

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PROGRESSIVE WEB APPS C O O L “ N E W ” T H I N G !

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PROGRESSIVE WEB APPS N AT I V E L O O K & F E E L

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PROGRESSIVE WEB APPS F R I C T I O N L E S S D O W N L O A D S

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PROGRESSIVE WEB APPS O F F L I N E ! S E RV I C E W O R K E R !

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PROGRESSIVE WEB APPS S O U N D S U P E R H A R D ?

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I’VE NEVER BUILT O K . R E A L TA L K AN APP

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IT’S GOT USERS THAT NEED AUTHENTICATION  DATA IN IN THE RESPONSIVE UI OFFLINE ROUTES LANGUAGES

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IT’S GOT USERS THAT NEED AUTHENTICATION  DATA IN IN THE RESPONSIVE UI OFFLINE ROUTES LANGUAGES

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IT’S GOT USERS THAT NEED AUTHENTICATION  DATA IN THE RESPONSIVE UI OFFLINE ROUTES LANGUAGES

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IT’S GOT USERS THAT NEED AUTHENTICATION  DATA IN THE OFFLINE RESPONSIVE UI ROUTES LANGUAGES

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IT’S GOT USERS THAT NEED AUTHENTICATION  DATA IN THE OFFLINE RESPONSIVE UI ROUTES LANGUAGES

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IT’S GOT USERS THAT NEED AUTHENTICATION  DATA IN THE OFFLINE RESPONSIVE UI ROUTES LANGUAGES

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IT’S GOT USERS THAT NEED AUTHENTICATION  DATA IN THE OFFLINE RESPONSIVE UI ROUTES LANGUAGES

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SO LET’S BUILD THIS APP

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HTTPS://MOJIBRAG.FIREBASEAPP.COM

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POLYMER 101 W H AT I S I T ? 0

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HTML

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HTML E L E M E N T S A R E M A D E BY T H E B R O W S E R

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HTML E L E M E N T S A R E E N C A P S U L AT E D

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HTML E L E M E N T S H AV E A N A P I

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HTML R E A L LY V E R B O S E A N D H A R D T O S H A R E : (

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WEB COMPONENTS E L E M E N T S A R E M A D E BY Y O U !

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Meow

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Meow

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Meow

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Meow

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Meow

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JQUERY E A S I E R J AVA S C R I P T

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NPM MODULES E A S I E R J AVA S C R I P T

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POLYMER E A S I E R W E B C O M P O N E N T S

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POLYMER “ T H E R E ’ S A N E L E M E N T F O R T H AT ”

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DO LESS / BE LAZY B U T F O R L I K E , E V E RY T H I N G 1

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(´ ̙ҹ).̶ӈὑ ~/Code ❥ mkdir app && cd app (´ ̙ҹ).̶ӈὑ ~/Code/app ❥ polymer init starter-kit

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localhost:8000/view2

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localhost:8000/view3

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AUTHENTICATION 2

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USE FIREBASE W H E N I N D O U B T

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login: function() { this.$.auth.signInWithPopup(); }, logout: function() { this.$.auth.signOut(); }, attached: function() { firebase.auth().onAuthStateChanged(function(user){ // you have a user! } }

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login: function() { this.$.auth.signInWithPopup(); }, logout: function() { this.$.auth.signOut(); }, attached: function() { firebase.auth().onAuthStateChanged(function(user){ // you have a user! } }

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login: function() { this.$.auth.signInWithPopup(); }, logout: function() { this.$.auth.signOut(); }, ready: function() { this.$.auth.auth.onAuthStateChanged(function(user){ // you have a user! } }

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“THE CLOUD” 3

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JUST USE FIREBASE S E R I O U S LY.

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PUTTING IT TOGETHER V I E W S ’ N ’ D ATA 4

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FEATURES T H I N K I N G A B O U T

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T R A N S L AT E S T O W E B C O M P O N E N T S FEATURES T H I N K I N G A B O U T

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✨

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PROPERTIES DOWN D ATA F L O W EVENTS UP

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ACTIVE CHANNEL

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ACTIVE CHANNEL EVENT: POST !

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OFFLINE: FALSE EVENT: POST !

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OFFLINE: FALSE EVENT: POST ! THIS.$.POST.HIDDEN

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WORK OFFLINE? B U T D O E S I T 5

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SERVICE WORKER A L R E A DY D O N E

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CONDITIONAL UI Y O U M I G H T WA N T

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ready: function() { this.offline = navigator.onLine === false; window.addEventListener('online', function() { this.offline = false; }.bind(this)); window.addEventListener('offline', function() { this.offline = true; }.bind(this)); },

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M AKE IT FAST 6

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D O L E S S . B E L A Z Y RENDER LESS DOM

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D O L E S S . B E L A Z Y IRON-LIST

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IF YOU DON’T NEED IT DON’T IMPORT IT D O L E S S . B E L A Z Y

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importHref( fileName, successCallback, errorCallback)

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firebase.auth().onAuthStateChanged(function(user) { if (user) { this.importHref(‘humble-brag.html', function() { this.hideSigninUI(); this.showMainApp(); }, null, true); } }

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firebase.auth().onAuthStateChanged(function(user) { if (user) { this.importHref(‘moji-feed.html’, function() { this.hideSigninUI(); this.showMainApp(); }); } }

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firebase.auth().onAuthStateChanged(function(user) { if (user) { this.importHref(‘moji-feed.html’, function() { this.hideSigninUI(); this.showMainApp(); }); } }

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LIGHTHOUSE I S R E A A A A L LY AW E S O M E

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WEBPAGETEST.ORG

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C’EST FACILE! I N T E R N AT I O N A L I Z AT I O N 7

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Sign out

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[[localize(‘sign-out’)]]

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locales.json: { “en”: { “sign-out”: “Sign out” }, “fr”: { “sign-out”: “Déconnexion” }, “tw”: { “sign-out”: “ጭڊ” } }

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locales.json: { “en”: { “sign-out”: “Sign out” }, “fr”: { “sign-out”: “Déconnexion” }, “tw”: { “sign-out”: “ጭڊ” } } Polymer({ behaviors: [Polymer.AppLocalizeBehavior], ready: { this.language = ‘en’; this.loadResources(‘locales.json’); } });

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