FirebaseDevDay.md

#What's new Firebase 1.3M monthly active app

##Build Better app

1. Firebase Admin

   • Node , Go , Python , Java , .NET

2. Cloud firestore

• Sorting & More condition to Filtering
• Limitation Concurrent 1 M connection
• Multi tab offline support for Web (Enable Persistence )
• Auto complete in Security rules

3. Authentication

• PasswordLess Sign in (Verify key is sent to email)

4. Cloud function

• Multi region
• stable 2.0
• Node 8 Runtime
• Timeout memory
• Callable function => trigger to URL by using this function
• Typescript
• Unit Testing
• New monitoring tools in Cloud functions

5. FCM(Firebase Cloud Messaging ) reporting Dashboard

• Migrate Cloud Cloud Messaging to Firebase Cloud Messaging

6. ML kit fore Firebase

• Text recognition , Image labelling , Barcode scanning , Face detection , Landmark recognition
• Coming soon: Face contour Smart reply's API

7. Firebase Hosting

• Firebase CLI => 4.2
• Deploy only files different from previous deployment
• Boot in upload speed
• Support Multiple Sites

Improve app Quality

1. Firebase Crashlytics

• 3+ Billion Devices WorldWide
• Compose Google Analytic and Firebase Crashlytics
• Tracing ( Page by Page , Who get crash)
• Integrate with Jira software ( Automatically create the issue, Manually create the issue, Filtering the issue by Device and OS )
• Exporting data to BigQuery

2. Firebase Test Lab

• Support IOS
• Plugin Fastlane (Automatically Testing then Deploy IOS app)

3. Firebase performance monitoring

• Importance issues (Report critical issue , check the code which use more memory , Network latency )
• Deep dive data(Region , Networking)

1. Firebase remote config

• Change History (Check who change the values in Service, AB testing)

2. Google Analytic for Firebase

• Project Level Reporting (Filtering OS , User Property)

3. Firebase In-App Messaging

• Run when app is active only
• Custom Message (Image, Icon , Web URL, background color, Button)
• No need coding
• Can Integrate with Firebase prediction( predicting user behavior in 100 days)
• steps:
  1. style and content
  2. target
  3. scheduling
  4. Conversation event(Trigger Google analytic for firebase)
• Can Custom modal
• Impression , Click and Conversation

Open source Firebase android SDK

ML kit for IOS developers

Easier using

1. Google lens - Recognization Image what is it - Text recognization - Smart reply such as Gmail

2. On device Machine Learning - Save internet cost. - use offline

3. Application & SDK - Tensorflow Lite - Neural network API on device ( C , C++)

4. Image Classification - steps:

   1. Get image
   2. transform
   3. interpret
   4. get result It's hard to use. On Fire!!!

5. Intro ML kit - FIRVisionImage | VisionImage

6. Text recognization - on Device which Support only Latin letter - on Cloud support al of most language

7. Image labelling - on device support 400+ labels - on cloud support 10,000+ labels

8. Face detection - Only on-device

9. Landmark recognization - Only on-cloud

10 Barcode scanning - on-device

11. Tensorflow lite - Custom model

Adding to your Flutter app

1. What's Flutter - it is created by Dart lang - is a mobile app SDK building high-performance

2. What's Dart - Dart is AOT compile to fast. predictable , native code - Dart can be also JIT

3. widget - Stateless can use them immediatly - Stateful Lifecycle

4. Flutter + Firebase = <3 - Flutter fire is a among of plugin for firebase - There is a documentation on Firebase web

Bringing Admin SDK

• Server owned or managed by app developers
• Cloud IaaS and PaaS environment
• Serverless platforms

Migrate Realtime Database to Firestore

History - Firebase is a startup company - Firestore = Firebase Database + Cloud Datastore

Difference - Data Model - Querying - Write and transactions - Realtime and offline support - Reliability and performance - Scalability - Security - Pricing - Latency

How to migrate ? - Data Structure - RTDB -> Cloud firestore => use Key to relate between the data - use sub collection instead

- Security Rule
  - use in sub collection

- Move Historical Data
  - Export JSON
  - Recent Backup
  - Write a custom script
  - Use Admin SDK ( 500 writes / sec)
  - Batched writes
  - Add new data (Cloud function trigger)
  - Remove read & write command from Realtime Database
  - Re-check data structure & Security Rule

Build Natural Conversational ChatBot

use with Dialogflow

Getting Started with Cloud function for firebase using Kotlin JS

• What is Firebase Cloud function

  • Serverless architecture
    • save Cost
    • save maintainance
  • Provide to API -integrate with each other product

• Bad thing about Kotlin to JS

  • Dynamic Type
  • Kotlin Object != JS Object
  • Parsing data with extra field
    • Can Create model before use
  • Can not call some methods
    • val is reserve word in Kotlin => js("snapshot.val()")
  • Need to know JS
  • Can not use some kotlin syntax and expect same flow
  • Unreadable error and hard to debug

• Can we improve

  • use Kotlin interface
  • use functions by interface

• features

  • Firestore
  • Database
  • Function
  • Admin
  • ExpressJS
  • Realtime Database triggers
  • GEO point for firestore