Add base request class with generic rule sets

app/Http/Requests/V1/BaseFormRequest.php

@@ -0,0 +1,30 @@
+<?php
+
+declare(strict_types=1);
+
+namespace App\Http\Requests\V1;
+
+use Illuminate\Foundation\Http\FormRequest;
+
+class BaseFormRequest extends FormRequest
+{
+
+    /**
+     * @param bool $bigInt
+     * @return list<string>
+     */
+    protected function moneyRules(bool $bigInt = false): array
+    {
+        $rules = [
+            'integer',
+            'min:0',
+        ];
+        if ($bigInt) {
+            $rules[] = 'max:9223372036854775807';
+        } else {
+            $rules[] = 'max:2147483647';
+        }
+
+        return $rules;
+    }
+}