added UuidTrait

app/Http/Traits/UuidTrait.php

+<?php
+
+namespace App\Http\Traits;
+
+use Illuminate\Support\Str;
+
+trait UuidTrait
+{
+    /**
+    * Boot function from Laravel
+    */
+    protected static function boot()
+    {
+        parent::boot();
+        static::creating(function ($model) {
+            $model->incrementing = false;
+            $model->keyType = 'string';
+            $model->{$model->getKeyName()} = Str::uuid()->toString();
+        });
+    }
+}