Firebase Syllabus

• Realtime Database
  • Billed based on data transfer rather than document numbers
  • Can do simples queries
  • Good for real time data storage and retrival
  • Ideal for stock trading data and real time monitoring systems for IOT
• Cloud Firestore (Billed based on number of documents
  • Billed based on number of documents
  • Can do complex queries
  • Good for storing relational database
  • Ideal for storing review informations, complex data models
• Firebase Hosting
  • Completely free for medium level traffic
  • Easy setup with github actions
• Remote Configs
  • Change configs for the mobile apps without any updates
  • Not ideal for initial settingup
  • Takes time to effect 100% of rollout
• Cloud Functions
  • Compression of image
  • Automatic Backups
  • Automatic summation
• Push Messages
  • To send notification to web and mobile platforms
  • With Image headers
  • With Unique notification sound
  • With click actions
• In-App Messages
  • For in app popup for user engagement
  • Ideal for promotional or new feature updates
• Dynamic Links
  • For using for referal links
  • Opening dedicated pages or posts from app
• Security Rules
  • To secure the database
  • Rules to secure data using admin roles
  • Rules to minimise data extraction

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Installing Firebase CLI in Windows or MAC

curl -sL https://firebase.tools | bash

• Then initialise by firebase login and add your service account

firebase login

• Then initialise the project by going inside the project folder and typing

firebase init

Installing Firebase-Admin in Python

pip install firebase-admin

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Debugging the installation error

If there is error like when installing any other dependencies

File "C:\Users\<NAME>\Anaconda3\lib\site-packages\firebase_admin\_http_client.py", line 34, in <module>
   raise_on_status=False, backoff_factor=0.5, **_ANY_METHOD)
   TypeError: __init__() got an unexpected keyword argument 'status'

Just do the following steps

• Go the following path

  C:\Users\<NAME>\Anaconda3\lib\site-packages\firebase_admin_http_client.py

• Comment the following lines from firebase_admin_http_client.py:

   #from requests.packages.urllib3.util import retry
   #DEFAULT_RETRY_CONFIG = retry.Retry(
   #connect=1, read=1, status=4, status_forcelist=[500, 503],
   #raise_on_status=False, backoff_factor=0.5)

• Also Change the init parameter as follows

def __init__(
  self, credential=None, session=None, base_url='', headers=None,
  retries=1,timeout=120):

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OR Change the requests version to

2.11.1

pip uninstall requests

pip install requests