добавляю тестовые скрипты на всякий случай

app/Http/Controllers/TestDataController.php

@@ -0,0 +1,19 @@
+<?php
+
+namespace App\Http\Controllers;
+
+use Illuminate\Http\Request;
+use App\Models\TestData;
+
+class TestDataController extends Controller
+{
+    public function insertNewData(Request $rqst)
+    {
+        $model = new TestData;
+        $model->test_int = $rqst->int;
+        $model->test_char = $rqst->char;
+
+        $model->save();
+    }
+
+}