$ git clone https://github.com/mdanics/fluttergram.git
$ cd fluttergram/

3. Setup the firebase app

1. You’ll need to create a Firebase instance. Follow the instructions at https://console.firebase.google.com.
2. Once your Firebase instance is created, you’ll need to enable anonymous authentication.

• Go to the Firebase Console for your new instance.
• Click “Authentication” in the left-hand menu
• Click the “sign-in method” tab
• Click “Google” and enable it

1. Create Cloud Functions (to make the Feed work)

• Create a new firebase project with firebase init
• Copy this project’s functions/lib/index.js to your firebase project’s functions/index.js
• Push the function getFeed with firebase deploy –only functions In the output, you’ll see the getFeed URL, copy that.
• Replace the url in the _getFeed function in feed.dart with your cloud function url from the previous step.

If this does not work and you get the error Error: Error parsing triggers: Cannot find module ‘./notificationHandler’ Try following these steps. If you are still unable to get it to work please open a new issue.

1. Enable the Firebase Database

• Go to the Firebase Console
• Click “Database” in the left-hand menu
• Click the Cloudstore “Create Database” button
• Select “Start in test mode” and “Enable”

1. (skip if not running on Android)

• Create an app within your Firebase instance for Android, with package name com.yourcompany.news
• Run the following command to get your SHA-1 key:

keytool -exportcert -list -v \

-alias androiddebugkey -keystore ~/.android/debug.keystore

• In the Firebase console, in the settings of your Android app, add your SHA-1 key by clicking “Add Fingerprint”.
• Follow instructions to download google-services.json
• place google-services.json into /android/app/.

1. (skip if not running on iOS)

• Create an app within your Firebase instance for iOS, with your app package name
• Follow instructions to download GoogleService-Info.plist
• Open XCode, right click the Runner folder, select the “Add Files to ‘Runner'” menu, and select the GoogleService-Info.plist file to add it to /ios/Runner in XCode
• Open /ios/Runner/Info.plist in a text editor. Locate the CFBundleURLSchemes key. The second item in the array value of this key is specific to the Firebase instance. Replace it with the value for REVERSED_CLIENT_ID from GoogleService-Info.plist

Double check install instructions for both

• Google Auth Plugin
  • https://pub.dartlang.org/packages/firebase_auth
• Firestore Plugin
  • https://pub.dartlang.org/packages/cloud_firestore

What’s Next?

•  Notificaitons for likes, comments, follows, etc
•  Improve Caching of Profiles, Images, Etc.
•  Better post creation, add filters to your image
•  Custom Camera Implementation
•  Animations (heart when liking image)
•  Firebase Security Rules
•  Delete Posts
•  Registration without Google SignIn
•  Direct Messaging
•  Stories
•  Clean up code

Credit (github url) : https://github.com/mdanics/fluttergram

Next Article : https://flutterappdev.com/2019/01/30/a-digital-bookshelf-for-your-reading-progress-mobile-app-development/