README

This package provides a simple and flexible feature flag system for Laravel applications. It allows developers to dynamically enable or disable features, roll out features to a percentage of users, or restrict features to specific users.

Features

• Toggle Features: Enable or disable features dynamically.
• Percentage Rollout: Roll out features to a percentage of users.
• User-Based Rollout: Enable features only for specific users.
• Database-Backed Flags: Store feature flags in the database.
• Config-Based Flags: Define feature flags directly in the Laravel config file.
• Command-Line Interface (CLI): Enable, disable, or list feature flags from the terminal.

Installation

To install the package, run the following command:

composer require amirhf1/feature-flags

Once installed, you need to register the service provider in your Laravel application. Add the following line to the providers array in config/app.php:

Amirhf1\FeatureFlags\Providers\FeatureFlagsServiceProvider::class,

Configuration

The package comes with a default configuration file. To publish the config file to your application, run:

php artisan vendor:publish --provider="Amirhf1\FeatureFlags\Providers\FeatureFlagsServiceProvider" --tag="config"

This will create the config/feature-flags.php file, where you can define and manage your feature flags.

Example of a feature flag in config/feature-flags.php:

return [
    'flags' => [
        'new_feature' => [
            'enabled' => true,
            'percentage' => 50,  // Enable for 50% of users
            'users' => [1, 2, 3],  // Enable for specific user IDs
        ],
    ],
];

Database Migrations

To store feature flags in the database, you need to run the migration command:

php artisan migrate

This will create the feature_flags table in your database.

To create the migration file, run:

php artisan vendor:publish --provider="Amirhf1\FeatureFlags\Providers\FeatureFlagsServiceProvider" --tag="migrations"

This will copy the migration file to your database/migrations folder.

Usage

Checking if a Feature is Enabled

You can check if a feature is enabled using the FeatureFlags class or the helper function.

use Amirhf1\FeatureFlags\Facades\FeatureFlags;

if (FeatureFlags::isEnabled('new_feature')) {
    // The feature is enabled, perform the feature-specific logic
}

Or using the helper function:

if (feature_enabled('new_feature')) {
    // The feature is enabled, perform the feature-specific logic
}

Enabling and Disabling Features

You can enable or disable features programmatically or via the command line.

Enable a Feature:

FeatureFlags::enable('new_feature');

Disable a Feature:

FeatureFlags::disable('new_feature');

Command-Line Interface (CLI)

The package provides several Artisan commands to interact with feature flags.

• List all feature flags:

  php artisan feature:list

• Enable a feature flag:

  php artisan feature:enable {feature_name}

• Disable a feature flag:

  php artisan feature:disable {feature_name}

Tests

To run the tests, you need to set up PHPUnit. Then, you can run the tests using:

php artisan test