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
280
[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
240
FPGAによる大規模データ処理の高速化
kazunori279
0
120
Googleがめざす、誰もが使える機械学習
kazunori279
4
4.9k
Machine Intelligence at Google Scale
kazunori279
3
1.4k
Machine Intelligence at Google Scale: Vision/Speech API, TensorFlow and Cloud Machine Learning
kazunori279
3
5.5k
Distributed TensorFlow
kazunori279
3
2.4k
What is Google BigQuery?
kazunori279
0
72
Cloud Vision API and TensorFlow
kazunori279
7
9.3k
Having fun with Google Cloud + RasPi
kazunori279
0
1.2k
Other Decks in Programming
See All in Programming
イベントストーミングから始めるドメイン駆動設計
jgeem
4
870
Using AI Tools Around Software Development
inouehi
0
1.2k
すべてのコンテキストを、 ユーザー価値に変える
applism118
2
450
XP, Testing and ninja testing
m_seki
2
130
データの民主化を支える、透明性のあるデータ利活用への挑戦 2025-06-25 Database Engineering Meetup#7
y_ken
0
280
生成AIコーディングとの向き合い方、AIと共創するという考え方 / How to deal with generative AI coding and the concept of co-creating with AI
seike460
PRO
1
320
LINEヤフー データグループ紹介
lycorp_recruit_jp
0
760
エラーって何種類あるの?
kajitack
5
280
Team topologies and the microservice architecture: a synergistic relationship
cer
PRO
0
930
今ならAmazon ECSのサービス間通信をどう選ぶか / Selection of ECS Interservice Communication 2025
tkikuc
11
2.8k
Elixir で IoT 開発、 Nerves なら簡単にできる!?
pojiro
1
150
Webからモバイルへ Vue.js × Capacitor 活用事例
naokihaba
0
740
Featured
See All Featured
Speed Design
sergeychernyshev
31
1k
The Invisible Side of Design
smashingmag
299
51k
The Art of Delivering Value - GDevCon NA Keynote
reverentgeek
15
1.5k
Intergalactic Javascript Robots from Outer Space
tanoku
271
27k
Designing for Performance
lara
609
69k
A better future with KSS
kneath
239
17k
Helping Users Find Their Own Way: Creating Modern Search Experiences
danielanewman
29
2.7k
jQuery: Nuts, Bolts and Bling
dougneiner
63
7.8k
The MySQL Ecosystem @ GitHub 2015
samlambert
251
13k
Documentation Writing (for coders)
carmenintech
71
4.9k
Learning to Love Humans: Emotional Interface Design
aarron
273
40k
Visualizing Your Data: Incorporating Mongo into Loggly Infrastructure
mongodb
46
9.6k
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.