README

High-Performance, Zero-Latency Audit Trail for Enterprise Laravel Applications.

This package provides an asynchronous audit logging system using Redis as a buffer and a Daemon Worker for bulk database insertion. It is designed to handle high-traffic applications where traditional synchronous logging would cause performance bottlenecks.

🚀 Why use this?

Traditional audit loggers insert a row into the database synchronously during the HTTP request.

• Problem: If you have 1,000 requests/sec, you are hitting the DB with 2,000 queries/sec (1 transaction + 1 log). This slows down response time and risks locking the table.
• Solution: This package pushes logs to Redis (memory) in <1ms. A background worker then processes them in batches (e.g., 100 logs at once). The user gets an instant response, and the database load is reduced by up to 90%.

📋 Requirements

• PHP ^8.1
• Laravel 10.x, 11.x, or 12.x
• Redis Server (Required for Production)
• PHP Extensions: pcntl (for worker signals), redis

📦 Installation

1. Install via Composer:

   composer require adithwidhiantara/laravel-async-audit-logger

2. Publish Configuration & Migrations:

   php artisan vendor:publish --provider="Adithwidhiantara\Audit\AuditingServiceProvider"

3. Run Migrations:

   php artisan migrate

4. Environment Setup (.env): Add these configurations to your .env file:

   # Driver: 'redis' (Production) or 'sync' (Local/Debugging)
   AUDIT_DRIVER=redis
   
   # Redis Connection (Recommend using a separate DB index, e.g., 'audit')
   AUDIT_REDIS_CONNECTION=default
   AUDIT_REDIS_KEY=audit_pkg:buffer
   
   # Worker Tuning
   AUDIT_BATCH_SIZE=100
   AUDIT_FLUSH_INTERVAL=5
   AUDIT_PRUNE_DAYS=90

🛠 Usage

1. Attach to Models

Simply use the Auditable trait on any Eloquent model you want to track.

namespace App\Models;

use Illuminate\Database\Eloquent\Model;
use Adithwidhiantara\Audit\Traits\Auditable; // <--- Import

class Product extends Model
{
    use Auditable; // <--- Use Trait

    protected $fillable = ['name', 'price', 'stock'];
}

That's it! Every created, updated, and deleted event will now be captured automatically.

2. Retrieving Logs

The trait provides a polymorphic relationship audits.

$product = Product::find(1);

// Get all history for this product
foreach ($product->audits as $audit) {
    echo $audit->event; // 'updated'
    echo $audit->user->name; // 'John Doe'
    print_r($audit->old_values); // ['price' => 1000]
    print_r($audit->new_values); // ['price' => 1200]
}

⚙️ Operational Setup (Production)

Since this is an asynchronous system, you must run the background processes.

1. The Worker (Daemon)

This worker consumes logs from Redis and saves them to the Database. Use Supervisor to keep it running.

Supervisor Config (/etc/supervisor/conf.d/audit-worker.conf):

[program:audit-worker]
process_name=%(program_name)s_%(process_num)02d
command=php /path/to/your/app/artisan audit:work
autostart=true
autorestart=true
user=www-data
numprocs=1
redirect_stderr=true
stdout_logfile=/path/to/your/app/storage/logs/audit-worker.log
stopwaitsecs=60

Tip: Increase numprocs if your traffic is extremely high.

2. The Scheduler (Recovery & Pruning)

Add these commands to your app/Console/Kernel.php (or routes/console.php in Laravel 11+).

• audit:recover: Checks for failed logs (saved to JSON files during DB outages) and retries inserting them.
• audit:prune: Automatically deletes old logs (default: >90 days).

// routes/console.php or Kernel.php

use Illuminate\Support\Facades\Schedule;

// Recover failed logs every hour
Schedule::command('audit:recover')->hourly()->runInBackground();

// Delete old logs daily
Schedule::command('audit:prune')->daily()->runInBackground();

⚖️ Pros & Cons

🛡 Disaster Recovery

If the Database goes down:

1. The Worker catches the exception.
2. Data is saved to storage/logs/audit_rescue_*.json.
3. The Worker continues processing new logs.
4. Once the DB is up, the scheduled audit:recover command restores the data from the JSON files.

🤝 Contributing

Pull requests are welcome. For major changes, please open an issue first to discuss what you would like to change.

📄 License

MIT