datatable.directory/app/Http/Controllers/TableController.php

<?php

namespace App\Http\Controllers;

use Illuminate\Http\Request;

class TableController extends Controller
{
    /**
     * SHow a form for creating a new table
     *
     * @return \Illuminate\Http\Response
     */
    public function create()
    {
        $exampleColSpec =
            "latin, string, Latin Name\n".
            "common, string, Common Name\n".
            "lifespan, int, Lifespan (years)";

        $exampleData =
            "Mercenaria mercenaria, hard clam, 40\n" .
            "Magallana gigas, pacific oyster, 30\n" .
            "Patella vulgata, common limpet, 20";

        return view('table.create',
            compact('exampleColSpec', 'exampleData')
        );
    }

    public function storeNew(Request $request)
    {
        $this->validate($request, [
            'table-name' => 'required',
            'table-descr' => 'string|nullable',
            'license' => 'string|nullable',
            'upstream' => 'string|nullable',
            'col-spec' => 'required',
            'row-data' => 'string|nullable',
        ]);

        return "Ok.";
    }
}