android

To allow the Android app to securely connect to your Firebase project, a configuration file must be downloaded and added to your project.

Generating Android credentials

On the Firebase console, add a new Android application and enter your projects details. The "Android package name" must match your local projects package name which can be found inside of the manifest tag within the /android/app/src/main/AndroidManifest.xml file within your project.

open your project app in firebase

create new App Android and then follow the step

and then download the file console

if Finish

Download the google-services.json file and place it inside of your project at the following location: /android/app/google-services.json.

Configure Firebase with Android credentials

To allow Firebase on Android to use the credentials, the google-services plugin must be enabled on the project. This requires modification to two files in the Android directory.

First, add the google-services plugin as a dependency inside of your /android/build.gradle file:

buildscript {
  dependencies {
    // ... other dependencies
    classpath 'com.google.gms:google-services:4.3.13'
    // Add me --- /\
  }
}

Lastly, execute the plugin by adding the following to your /android/app/build.gradle file:

apply plugin: 'com.android.application'
apply plugin: 'com.google.gms.google-services' // <- Add this line

Set SHA certificate fingerprints

The debug signing certificate is optional to use Firebase with your app, but is required for Dynamic Links, Invites and Phone Authentication. To generate a certificate run cd android && ./gradlew signingReport. This generates two variant keys. You have to copy both 'SHA1' and 'SHA-256' keys that belong to the 'debugAndroidTest' variant key option. Then, you can add those keys to the 'SHA certificate fingerprints' on your app in Firebase console.

run in your terminal