Upgrade to Pro
— share decks privately, control downloads, hide ads and more …
Speaker Deck
Features
Speaker Deck
PRO
Sign in
Sign up for free
Search
Search
[GCPUG India] Firebase - Build Extraordinary Apps
Search
Kazunori Sato
July 04, 2015
Programming
2
240
[GCPUG India] Firebase - Build Extraordinary Apps
Kazunori Sato
July 04, 2015
Tweet
Share
More Decks by Kazunori Sato
See All by Kazunori Sato
Tensor Processing Unit (TPU) Overview (July 6, 2018)
kazunori279
0
160
FPGAによる大規模データ処理の高速化
kazunori279
0
86
Googleがめざす、誰もが使える機械学習
kazunori279
4
4.6k
Machine Intelligence at Google Scale
kazunori279
3
1.4k
Machine Intelligence at Google Scale: Vision/Speech API, TensorFlow and Cloud Machine Learning
kazunori279
3
5.3k
Distributed TensorFlow
kazunori279
3
2.3k
What is Google BigQuery?
kazunori279
0
43
Cloud Vision API and TensorFlow
kazunori279
7
9k
Having fun with Google Cloud + RasPi
kazunori279
0
1.1k
Other Decks in Programming
See All in Programming
英語
s_shimotori
1
220
Advanced App Shrinking Techniques
cbeyls
2
150
Javaの現状2024夏 / Java current status 2024 summer
kishida
4
1.4k
AWS CDKにおける「再利用性」を考える / aws-cdk-reusability
gotok365
6
1.3k
社内 LT 会を発足し、アウトプット文化を醸成させるために考えたこと・やったこと / Starting internal LT meetings and fostering an output culture
mackey0225
3
120
Terraformテスト入門
msato
0
530
DMMプラットフォームにおけるTiDBの導入から運用まで
pospome
7
3k
小さな開発会社を作った理由
polidog
0
1.9k
Google's Recipe for Scaling (Web) Security – LocoMocoSec 2024
lweichselbaum
0
170
入社1ヶ月でここまでやった!Findy Toolsインフラ支援の最適化
rvirus0817
6
1.4k
【Go言語】golangci-lintの使い方
tomo1227
0
270
Temporalを取り巻く仕様を整理する
sajikix
0
110
Featured
See All Featured
Building a Modern Day E-commerce SEO Strategy
aleyda
25
6.7k
Distributed Sagas: A Protocol for Coordinating Microservices
caitiem20
325
21k
jQuery: Nuts, Bolts and Bling
dougneiner
61
7.4k
Designing on Purpose - Digital PM Summit 2013
jponch
113
6.6k
I Don’t Have Time: Getting Over the Fear to Launch Your Podcast
jcasabona
26
1.8k
StorybookのUI Testing Handbookを読んだ
zakiyama
15
4.9k
CSS Pre-Processors: Stylus, Less & Sass
bermonpainter
353
29k
Navigating Team Friction
lara
181
13k
Debugging Ruby Performance
tmm1
71
11k
Cheating the UX When There Is Nothing More to Optimize - PixelPioneers
stephaniewalter
277
13k
Designing Dashboards & Data Visualisations in Web Apps
destraynor
226
52k
The Art of Programming - Codeland 2020
erikaheidi
48
13k
Transcript
Firebase: Build Extraordinary Apps
+Kazunori Sato @kazunori_279 Kaz Sato Developer Advocate, Cloud Platform, Google
Inc. Cloud community advocacy Cloud product launch support
Mobile App for Millions of People Authentication. Storing Data. Interactions.
“Make it work in the Cloud”
In the Cloud, you need… Front End. Business Logic. Database.
Multiple Servers, Load Balancers, Replicas, Backups...
For Clients, you need to support… Smart Phones. Tablets. Desktops.
Android, iOS and Browsers
Talking to a Backend Large Scale M-to-N Connections with Realtime
messaging … It’s not easy
= Expensive Engineering Time
Is there a better way?
Firebase is a powerful platform for mobile and web applications.
Firebase User Authentication Realtime Database Static Hosting
Firebase User Authentication Realtime Database Static Hosting
Firebase User Authentication Realtime Database Static Hosting
Location Collaboration Gaming Realtime is…
Location Collaboration Gaming Realtime is…
Location Collaboration Gaming Realtime is…
Unreliable networks Multi Platform Realtime is hard! Complex Transport Stateful
2-way connection How to implement it?
Unreliable networks Multi Platform Realtime is hard! Complex Transport 4G/WiFi
switching. Subways. Tunnels. Basements.
Unreliable networks Multi Platform Realtime is hard! Complex Transport Different
Capabilities, Behaviors and Languages
Firebase in the Real World
CBS 50,000 Concurrent Users 27,000,000 chat messages
$40,000 Kickstarter 100,000 Users
200,000+ Developers
How to Develop?
Demo: mmoasteroids
Firebase Dashboard Database. Security. Analytics. Debugging. Deployment.
Setup // Firebase connection Stuff var firebaseRef = new Firebase("https://mmoasteroids.firebaseio.com");
var firebaseRefGame = firebaseRef.child('game');
Start up the user’s ship // Add player's ship to
Firebase var myship = firebaseRefGame.child('players').push(); // Schedule player removal on disconnect at the backend myship.onDisconnect().remove();
// Write new ship location to Firebase on any update
myship.set({ ship: { acc: this.acc, vel: this.vel, x: this.x, y: this.y, rot: this.rot, accb: KEY_STATUS.up }, user: currentUser }); Write our ship to firebase on updates
// Sync new enemy ships from Firebase to local game
state firebaseRefGame.child('players').on('child_added', function (snapshot) { if (snapshot.key() !== myship.key()) { var enemy = new EnemyShip(); enemy.acc = snapshot.val().ship.acc; enemy.vel = snapshot.val().ship.vel; enemy.x = snapshot.val().ship.x; enemy.y = snapshot.val().ship.y; enemy.rot = snapshot.val().ship.rot; enemy.accb = snapshot.val().ship.accb; enemy.user = snapshot.val().user; enemy.visible = true; enemy.fref = firebaseRefGame.child('players').child(snapshot.key()); }}); We read enemy ships too...
firebaseRefGame.child('players').on('child_removed', function (snapshot) { if (snapshot.key() !== myship.key()) { var
enemy = Game.sprites[snapshot.key()]; enemy.visible = false; delete Game.sprites[snapshot.key()]; Game.explosionAt(snapshot.val().ship.x, snapshot.val().ship.y); } else { Game.ship.collision(null); } }) We handle enemy ship “removal”
bullet.fref = firebaseRefGame.child('bullets').push({ s: myship.key(), x: bullet.x, y: bullet.y, vel:
bullet.vel }); bullet.fref.onDisconnect().remove(); Bullets
// Sync enemy bullets from Firebase to local game state
firebaseRefGame.child('bullets').on('child_added', function (snapshot) { var bullet = snapshot.val(); if (bullet.s !== myship.key()) { var enemybullet = new EnemyBullet(); enemybullet.x = bullet.x; enemybullet.y = bullet.y; enemybullet.vel = bullet.vel; enemybullet.visible = true; enemybullet.fref = firebaseRefGame.child('bullets').child(snapshot.key()); Game.sprites['bullet:' + snapshot.key()] = enemybullet; }}); Enemy bullets
firebaseRefGame.child('bullets').on('child_removed', function (snapshot) { var bullet = snapshot.val(); if (bullet.s
!== myship.key()) { var enemybullet = Game.sprites['bullet:' + snapshot.key()]; if (enemybullet != null) { enemybullet.visible = false; } delete Game.sprites['bullet:' + snapshot.key()]; } }); Enemy bullet removal
Conclusions
Mobile Is Important!
Traditionally Complex!
None
None
https://firebase.com
Thank you! This work is licensed under a Creative Commons
Attribution 2.0 Generic License.