Fix guzzle `429 Too Many Requests` response

app/Http/Controllers/Admin/SakuController.php

@@ -7,9 +7,13 @@
 use App\Models\VPengusul;
 use Exception;
 use GuzzleHttp\Client;
+use GuzzleHttp\Exception\RequestException;
+use GuzzleHttp\HandlerStack;
+use GuzzleHttp\Middleware;
 use Storage;
 use Illuminate\Http\Request;
 use Illuminate\Support\Facades\DB;
+use Illuminate\Support\Facades\Log;
 use Session;
 
 class SakuController extends Controller
@@ -63,19 +67,68 @@ public function index(Request $request) {
     }
 
     public function getFileName($tahun, $nosurat){
-        $client = new Client();
-
-        $response = $client->request('GET', 'https://e-office.unesa.ac.id/api/show-surat-keluar/'.$tahun.'/'.$nosurat);
-        $data = json_decode($response->getBody(), true);
-
-        if (is_null($data)) {
+        // $client = new Client();
+
+        // $response = $client->request('GET', 'https://e-office.unesa.ac.id/api/show-surat-keluar/'.$tahun.'/'.$nosurat);
+        // $data = json_decode($response->getBody(), true);
+
+        // if (is_null($data)) {
+        //     $namafile = '';
+        // }
+        // if (empty($data)) {
+        //     $namafile = '';
+        // }
+        // else{
+        //     $namafile = $data['namafile'];
+        // }
+
+        // return $namafile;
+
+        // Buat handler stack untuk Guzzle
+        $handlerStack = HandlerStack::create();
+
+        // Tambahkan retry middleware
+        $handlerStack->push(Middleware::retry(
+            function ($retries, $request, $response, $exception) {
+                // Maksimum 3 kali percobaan ulang
+                if ($retries >= 3) {
+                    return false;
+                }
+
+                // Jika response 429 (Too Many Requests), retry
+                if ($response && $response->getStatusCode() == 429) {
+                    return true;
+                }
+
+                return false;
+            },
+            function ($retries) {
+                // jeda 1s, 2s, 3s...
+                return 1000 * $retries;
+            }
+        ));
+
+        // Inisialisasi client
+        $client = new Client([
+            'handler' => $handlerStack,
+            'timeout' => 10, // optional: timeout tiap request
+        ]);
+
+        try {
+            $response = $client->request('GET', "https://e-office.unesa.ac.id/api/show-surat-keluar/{$tahun}/{$nosurat}");
+            $data = json_decode($response->getBody(), true);
+
+            if (empty($data) || is_null($data)) {
+                $namafile = '';
+            } else {
+                $namafile = $data['namafile'] ?? '';
+            }
+
+        } catch (RequestException $e) {
+            // Tangani jika gagal total (misal setelah 3 retry)
             $namafile = '';
-        }
-        if (empty($data)) {
-            $namafile = '';
-        }
-        else{
-            $namafile = $data['namafile'];
+            // Opsional: tulis log error
+            Log::error("Gagal ambil surat keluar: ".$e->getMessage());
         }
 
         return $namafile;