fix: improve API error handling, add fallback UI, and optimize Nginx connection settings

nginx/default.conf

@@ -4,6 +4,14 @@ server {
     root /var/www/public;
     index index.php index.html;
 
+    # Keep-alive ve connection ayarları (bağlantı birikmesini önlemek için)
+    keepalive_timeout 65;
+    keepalive_requests 100;
+    client_max_body_size 20M;
+    client_body_timeout 60s;
+    client_header_timeout 60s;
+    send_timeout 60s;
+
     # HTTPS için proxy headers
     proxy_set_header X-Forwarded-Proto $scheme;
     proxy_set_header X-Forwarded-Port $server_port;
@@ -31,8 +39,18 @@ server {
         
         # Timeout ayarları
         fastcgi_read_timeout 300;
-        fastcgi_connect_timeout 300;
+        fastcgi_connect_timeout 60;
         fastcgi_send_timeout 300;
+        
+        # FastCGI keep-alive ve buffer ayarları (bağlantı birikmesini önlemek için)
+        fastcgi_keep_conn on;
+        fastcgi_buffering on;
+        fastcgi_buffer_size 4k;
+        fastcgi_buffers 8 4k;
+        fastcgi_busy_buffers_size 8k;
+        
+        # Connection pool ayarları
+        fastcgi_max_temp_file_size 0;
     }
 
     # Gizli dosyaları engelle

resources/views/currency.blade.php

@@ -1,3 +1,4 @@
+@if($rate)
 <div class="card">
 <div class="title">
     
@@ -5,10 +6,10 @@
     
     {{$currencyName}}
     </p>
-    <p class="percent" style="color: {{ $rate['Change'] > 0 ? 'green' : '#B9101E' }}">
+    <p class="percent" style="color: {{ ($rate['Change'] ?? 0) > 0 ? 'green' : '#B9101E' }}">
-        {{ $rate['Change'] }}%
+        {{ $rate['Change'] ?? 0 }}%
     </p>
-    @if($rate['Change'] > 0)
+    @if(($rate['Change'] ?? 0) > 0)
         <svg width="20" height="20" fill="green" style="position: relative; top: -2px;" viewBox="0 0 1792 1792" xmlns="http://www.w3.org/2000/svg" transform="rotate(180)"> <path d="M384 576q0-26 19-45t45-19h896q26 0 45 19t19 45-19 45l-448 448q-19 19-45 19t-45-19l-448-448q-19-19-19-45z"></path> </svg> 
     @else
         <svg width="20" height="20" fill="#B9101E" viewBox="0 0 1792 1792" xmlns="http://www.w3.org/2000/svg"> <path d="M384 576q0-26 19-45t45-19h896q26 0 45 19t19 45-19 45l-448 448q-19 19-45 19t-45-19l-448-448q-19-19-19-45z"></path> </svg> 
@@ -19,12 +20,13 @@
 <div class="data">
     <p>
    
-        {{$rate['Selling']}} ₺
+        {{$rate['Selling'] ?? '0.00'}} ₺
     </p>
     
     <div class="range">
-        <div class="fill" style="background-color: {{ $rate['Change'] > 0 ? 'green' : '#B9101E' }};">
+        <div class="fill" style="background-color: {{ ($rate['Change'] ?? 0) > 0 ? 'green' : '#B9101E' }};">
         </div>
     </div>
 </div>
-</div>
+</div>
+@endif

resources/views/welcome.blade.php

@@ -128,24 +128,37 @@
                     </header>
                     <main class="mt-6">
                             @php
-                                $response = file_get_contents('https://finance.truncgil.com/api/today.json');
+                                try {
-                                $data = json_decode($response, true);
+                                    $response = @file_get_contents('https://finance.truncgil.com/api/today.json');
+                                    $data = $response ? json_decode($response, true) : null;
+                                } catch (\Exception $e) {
+                                    $data = null;
+                                }
+                                
                                 $currencies = ['USD', 'EUR', 'GBP', 'GRA', 'BTC', 'ETH', 'XRP', 'LTC'];
                                 $rates = [];
 
-                                foreach ($currencies as $currency) {
+                                if (isset($data['Rates'])) {
-                                    $rates[$currency] = $data['Rates'][$currency] ?? null;
+                                    foreach ($currencies as $currency) {
+                                        if (isset($data['Rates'][$currency])) {
+                                            $rates[$currency] = $data['Rates'][$currency];
+                                        }
+                                    }
                                 }
                             @endphp
                             <div class="grid grid-cols-1 md:grid-cols-2 lg:grid-cols-4 gap-6">
-                                @foreach($rates AS $currencyName => $rate)
+                                @forelse($rates AS $currencyName => $rate)
                                     <div class="w-full md:w-auto">
                                         @include('currency', [
                                             'currencyName' => $currencyName, 
                                             'rate' => $rate
                                         ])
                                     </div>
-                                @endforeach
+                                @empty 
+                                    <div class="col-span-full text-center py-10">
+                                        <p class="text-gray-500">Service temporarily unavailable. Please try again later.</p>
+                                    </div>
+                                @endforelse
                             </div>