expense-tracker-inertiajs/app/Http/Controllers/ExpenseController.php

<?php

namespace App\Http\Controllers;

use Illuminate\Http\Request;

class ExpenseController extends Controller
{
    public function index()
    {
        return inertia('Transaction');
    }

    public function store()
    {
        //
    }

    public function update()
    {
        //
    }

    public function destroy()
    {
        //
    }
}