classify admin

app/Rules/JsonFile.php

@@ -0,0 +1,15 @@
+<?php
+
+namespace App\Rules;
+
+use Closure;
+use Illuminate\Contracts\Validation\ValidationRule;
+
+class JsonFile implements ValidationRule {
+
+    public function validate(string $attribute, mixed $value, Closure $fail): void {
+        if (($value instanceof \Illuminate\Http\UploadedFile) && $value->getClientOriginalExtension() != 'json' && !in_array($value->getMimeType(), ["application/json", "text/plain"])) {
+            $fail($attribute . ' must be a json file');
+        }
+    }
+}