Initial setup

app/Classes/Exceptions/ResourceConflictException.php

@@ -0,0 +1,12 @@
+<?php
+
+namespace App\Classes\Exceptions;
+
+use App\Classes\ValueObjects\Constants\HttpStatus;
+
+final class ResourceConflictException extends ServiceApiException {
+    public function __construct(?string $message = null) {
+        parent::__construct($message ?? 'Unable to create the requested resource as it already exists',
+            HttpStatus::RESOURCE_ALREADY_EXISTS);
+    }
+}