initialize project

app/Http/Middleware/IsVotedMiddleware.php

@@ -0,0 +1,28 @@
+<?php
+
+namespace App\Http\Middleware;
+
+use Closure;
+use App\Result;
+use Illuminate\Support\Facades\Auth;
+
+class IsVotedMiddleware
+{
+    /**
+     * Handle an incoming request.
+     *
+     * @param  \Illuminate\Http\Request  $request
+     * @param  \Closure  $next
+     * @return mixed
+     */
+    public function handle($request, Closure $next)
+    {
+        if (Result::where('voter_id', Auth::id())->count() > 0) 
+            return response()->json([
+                'status' => 'failed',
+                'message' => 'You can only vote once.'
+            ]);
+
+        return $next($request);
+    }
+}