Laravel Feature Flags Lite

A lightweight and simple solution to manage feature flags in your Laravel applications.

📋 Table of Contents

• Installation
• Configuration
• Usage
• Best Practices
• Contributing
• License

🚀 Installation

You can install the package via composer:

composer require evanperreau/laravel-feature-flags-lite

⚙️ Configuration

After installation, publish the configuration file:

php artisan vendor:publish --provider="Evanperreau\LaravelFeatureFlagsLite\FeatureFlagsServiceProvider" --tag="config"

This will create a features.php file in your config folder with the following structure:

<?php

return [
    /*
     * Feature flags
     *
     * 'feature_name' => true,
     */
];

🔧 Usage

Configuring feature flags

Add your feature flags in the config/features.php configuration file:

<?php

return [
    'new_ui' => true,
    'beta_feature' => false,
    'premium_feature' => true,
];

Checking if a feature flag is enabled

You can check if a feature flag is enabled in three different ways:

1. Using the facade

use Evanperreau\LaravelFeatureFlagsLite\Facades\Feature;

if (Feature::isEnabled('new_ui')) {
    // The 'new_ui' feature flag is enabled
}

2. Using the helper function

if (feature('new_ui')) {
    // The 'new_ui' feature flag is enabled
}

3. Using dependency injection

use Evanperreau\LaravelFeatureFlagsLite\FeatureFlags;

class MyController
{
    public function index(FeatureFlags $featureFlags)
    {
        if ($featureFlags->isEnabled('new_ui')) {
            // The 'new_ui' feature flag is enabled
        }
    }
}

Using in Blade views

You can easily use feature flags in your Blade views:

@if(feature('new_ui'))
    <div class="new-ui-component">
        <!-- Content visible only if the 'new_ui' feature flag is enabled -->
    </div>
@else
    <div class="old-ui-component">
        <!-- Content visible if the 'new_ui' feature flag is disabled -->
    </div>
@endif

Using the middleware

You can protect routes or groups of routes with the feature flag middleware. If the feature flag is disabled, the request will be aborted with a 404 response by default.

Protecting a single route

// Only accessible if 'premium_feature' is enabled
Route::get('/premium-content', 'PremiumController@index')
    ->middleware('feature:premium_feature');

Protecting a route with custom status code

// Returns 403 Forbidden if 'beta_feature' is disabled
Route::get('/beta-feature', 'BetaController@index')
    ->middleware('feature:beta_feature,403');

Protecting a group of routes

// All routes in this group require 'admin_panel' to be enabled
Route::middleware('feature:admin_panel')->group(function () {
    Route::get('/admin/dashboard', 'AdminController@dashboard');
    Route::get('/admin/users', 'AdminController@users');
    Route::get('/admin/settings', 'AdminController@settings');
});

📝 Best Practices

Naming feature flags

Use descriptive names for your feature flags. For example:

• new_user_onboarding
• premium_dashboard
• beta_reporting_tools

Environment management

You can use different values for your feature flags depending on the environment by using environment variables in your .env file:

FEATURE_NEW_UI=true
FEATURE_BETA_FEATURE=false

And in your features.php configuration file:

<?php

return [
    'new_ui' => env('FEATURE_NEW_UI', false),
    'beta_feature' => env('FEATURE_BETA_FEATURE', false),
];

👥 Contributing

Contributions are welcome! Feel free to open an issue or submit a pull request.

📄 License

This package is open-source and available under the MIT license.