Invoices can be uploaded

app/Domains/CostUnit/Controllers/DistanceAllowanceController.php

@@ -0,0 +1,20 @@
+<?php
+
+namespace App\Domains\CostUnit\Controllers;
+
+use App\Scopes\CommonController;
+use Illuminate\Http\JsonResponse;
+
+class DistanceAllowanceController extends CommonController {
+    public function __invoke(int $costUnitId) : JsonResponse {
+        $distanceAllowance = 0.00;
+        $costUnit = $this->costUnits->getById($costUnitId, true);
+        if (null !== $costUnit) {
+            $distanceAllowance = $costUnit->distance_allowance;
+        }
+
+        return response()->json([
+            'distanceAllowance' => $distanceAllowance
+        ]);
+    }
+}