This plugin converts the google-services.json file for Firebase into a set of resources that the Firebase libraries can use. It also references the strict-version-matcher plugin, and will execute those checks as well.

Add the following to your project's settings.gradle:

pluginManagement {
    repositories {
        gradlePluginPortal()
        google()
    }
}

Apply the plugin in your app's build.gradle.kts:

plugins {
    id("com.google.gms.google-services") version "4.4.1"
}

Or in build.gradle:

plugins {
    id 'com.google.gms.google-services' version '4.4.1'
}

Place the google-services.json file for your project in the app/ directory.

Alternatively, you can use variant specific source-sets, for example: debug/google-services.json.

The com.google.gms.google-services plugin can only be applied to projects with com.android.application or com.android.dynamic-feature, as it requires an applicationId to function.

The plugin is not compatible with plugins such as com.android.library that do not contain an applicationId.

Configure the plugin's behavior through the googleServices block in build.gradle.kts:

googleServices {
    // Disables checking of Google Play Services dependencies compatibility
    // Default: false
    
    disableVersionCheck = true 
    
    // Choose the behavior when google-services.json is missing:
    // Default: MissingGoogleServicesStrategy.ERROR
    // Possible options: IGNORE, WARN, ERROR  
    
    missingGoogleServicesStrategy = MissingGoogleServicesStrategy.WARN
}

You can use missingGoogleServicesStrategy when some variants in your project do not require Google Play Services and are missing the google-services.json file.

The Google Services plugin requires AGP 7.3.0 or newer to work.

Add the following to your buildscript classpath, obtained from Google’s Maven repository:

classpath 'com.google.gms:google-services:4.4.1'

Apply the plugin in your app's build.gradle:

apply plugin: 'com.google.gms.google-services'

These instructions are also documented online