Day 1 – Setting Up the AI Document Parser Project (Laravel + GPT) #LaravelGPT #DocumentParsing #AIValidation #LegalAI #SmartDocs #OpenAI

Welcome to Day 1 of building an AI-Powered Document Parser + Validator using Laravel and GPT. By the end of this series, you’ll have a smart system that parses uploaded contracts or invoices and highlights key details, risks, and missing fields.

Table of Contents

🎯 Goal for Today

Set up the document upload system
Create models/tables for uploaded files
Prepare for GPT-based parsing

🗂 Step 1: Create Document Model

php artisan make:model Document -m

In the migration:

public function up()
{
    Schema::create('documents', function (Blueprint $table) {
        $table->id();
        $table->string('title');
        $table->string('filename');
        $table->string('type'); // e.g. contract, invoice
        $table->foreignId('user_id')->nullable()->constrained()->onDelete('cascade');
        $table->timestamps();
    });
}

Then:

php artisan migrate

📥 Step 2: Upload Form

In your view (resources/views/documents/upload.blade.php):

<form action="{{ route('documents.store') }}" method="POST" enctype="multipart/form-data">
    @csrf
    <label>Title</label>
    <input type="text" name="title" required>

    <label>Document Type</label>
    <select name="type">
        <option value="contract">Contract</option>
        <option value="invoice">Invoice</option>
    </select>

    <label>Upload File (PDF)</label>
    <input type="file" name="document" accept="application/pdf" required>

    <button type="submit">Upload</button>
</form>

📦 Step 3: Controller Logic

php artisan make:controller DocumentController

In DocumentController.php:

public function store(Request $request)
{
    $request->validate([
        'title' => 'required|string',
        'type' => 'required|in:contract,invoice',
        'document' => 'required|file|mimes:pdf|max:20480',
    ]);

    $file = $request->file('document');
    $filename = time() . '-' . $file->getClientOriginalName();
    $file->storeAs('documents', $filename, 'public');

    Document::create([
        'title' => $request->title,
        'type' => $request->type,
        'filename' => $filename,
        'user_id' => auth()->id(),
    ]);

    return redirect()->back()->with('success', 'Document uploaded successfully.');
}

🛣 Step 4: Add Routes

In web.php:

use App\Http\Controllers\DocumentController;

Route::get('/documents/upload', fn() => view('documents.upload'))->name('documents.upload');
Route::post('/documents', [DocumentController::class, 'store'])->name('documents.store');

✅ Summary

✅ Today you:

Created a Document model with type tracking
Built a form to upload contracts/invoices
Stored uploaded files securely
Set up the foundation for parsing and validating

✅ Up next (Day 2): We’ll extract text content from PDF and prepare it for GPT processing.

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