How do I integrate Supabase Auth with Row Level Security for Laravel

Step 1: Set Up Supabase Project

1. Create a Supabase Project: Go to the Supabase dashboard and create a new project. This will give you a Postgres database and other features like authentication and APIs.

Step 2: Set Up Laravel Project

1. Create a Laravel Project: Use Composer to create a new Laravel project:

bash
   composer create-project laravel/laravel example-app
   

2. Install Laravel Breeze: Install Laravel Breeze for authentication:

bash
   composer require laravel/breeze --dev
   php artisan breeze:install
   

Step 3: Configure Postgres Database Connection

1. Update Database Configuration: Update the Postgres database connection in `config/database.php` to match your Supabase project:

php
   'pgsql' => [
       'driver' => 'pgsql',
       'url' => env('DATABASE_URL'),
       'host' => env('DB_HOST', '127.0.0.1'),
       'port' => env('DB_PORT', '5432'),
       'database' => env('DB_DATABASE', 'forge'),
       'username' => env('DB_USERNAME', 'forge'),
       'password' => env('DB_PASSWORD', ''),
       'charset' => 'utf8',
       'prefix' => '',
       'prefix_indexes' => true,
       'search_path' => 'public', // Update this to match your Supabase schema
       'sslmode' => 'prefer',
   ],
   

2. Update Environment Variables: Update the environment variables in `.env` to match your Supabase project:

ini
   DB_CONNECTION=pgsql
   DATABASE_URL=postgres://your_username:your_password@your_host:5432/your_database
   

Step 4: Enable RLS on Tables

1. Enable RLS on Tables: Enable RLS on the tables you want to secure. For example, enable RLS on the `profiles` table:

sql
   ALTER TABLE profiles ENABLE ROW LEVEL SECURITY;
   

Step 5: Create Policies

1. Create Policies: Create policies to restrict access to tables based on user roles. For example, create a policy to restrict access to the `profiles` table based on the `user_id` column:

sql
   CREATE POLICY "Users can only view their own profile" 
   ON profiles
   FOR SELECT
   USING (auth.uid() = user_id);
   

Step 6: Use Supabase Auth with Laravel

1. Use Supabase Auth: Use Supabase Auth to authenticate users and manage their sessions. You can use the `auth.jwt()` function to check for Multi-Factor Authentication (MFA) and restrict access to certain actions:

sql
   CREATE POLICY "Restrict updates" 
   ON profiles
   AS RESTRICTIVE
   FOR UPDATE
   TO authenticated
   USING (auth.jwt()->>'aal' = 'aal2');
   

Step 7: Integrate Supabase Auth with Laravel

1. Integrate Supabase Auth with Laravel: Integrate Supabase Auth with Laravel by using the Supabase client library to handle user authentication and session management. You can use the `auth.uid()` function to get the user ID and the `auth.jwt()` function to get the JWT token:

php
   use Supabase\Client;

   $supabase = new Client([
       'supabaseUrl' => 'https://your-supabase-url.supabase.co',
       'supabaseKey' => 'your-supabase-anon-key',
   ]);

   $user = $supabase->auth()->getUser();
   $userId = $user['id'];
   $jwtToken = $user['jwt'];
   

By following these steps, you can integrate Supabase Auth with Row Level Security for Laravel, ensuring that your application's data is securely accessed and managed based on user roles and permissions.