feat: retries of api requests in case of failure

feat: add sentry

.env

@@ -18,3 +18,7 @@
 APP_ENV=dev
 APP_SECRET=f27f6cb11fb594fcb5ab4591ec0aac77
 ###< symfony/framework-bundle ###
+
+###> sentry/sentry-symfony ###
+SENTRY_DSN=
+###< sentry/sentry-symfony ###

composer.json

@@ -10,6 +10,7 @@
         "ext-iconv": "*",
         "grpc/grpc": "^1.57",
         "guzzlehttp/promises": "*",
+        "nubium/this-should-never-happen-exception": "^1.0",
         "nyholm/psr7": "*",
         "open-telemetry/exporter-otlp": "^1.0",
         "open-telemetry/opentelemetry-auto-symfony": "^1.0@beta",
@@ -19,6 +20,7 @@
         "open-telemetry/sdk": "^1.0",
         "open-telemetry/transport-grpc": "^1.0",
         "php-http/httplug": "*",
+        "sentry/sentry-symfony": "^4.13",
         "symfony/asset": "7.0.*",
         "symfony/asset-mapper": "7.0.*",
         "symfony/cache": "7.0.*",

config/bundles.php

@@ -6,4 +6,5 @@ return [
     Twig\Extra\TwigExtraBundle\TwigExtraBundle::class => ['all' => true],
     Symfony\Bundle\WebProfilerBundle\WebProfilerBundle::class => ['dev' => true, 'test' => true],
     Symfony\Bundle\MonologBundle\MonologBundle::class => ['all' => true],
+    Sentry\SentryBundle\SentryBundle::class => ['prod' => true],
 ];

config/packages/sentry.yaml

@@ -0,0 +1,26 @@
+when@prod:
+    sentry:
+        dsn: '%env(SENTRY_DSN)%'
+        # this hooks into critical paths of the framework (and vendors) to perform
+        # automatic instrumentation (there might be some performance penalty)
+        # https://docs.sentry.io/platforms/php/guides/symfony/performance/instrumentation/automatic-instrumentation/
+        tracing:
+            enabled: false
+
+#        If you are using Monolog, you also need this additional configuration to log the errors correctly:
+#        https://docs.sentry.io/platforms/php/guides/symfony/#monolog-integration
+#        register_error_listener: false
+#        register_error_handler: false
+
+#    monolog:
+#        handlers:
+#            sentry:
+#                type: sentry
+#                level: !php/const Monolog\Logger::ERROR
+#                hub_id: Sentry\State\HubInterface
+
+#    Uncomment these lines to register a log message processor that resolves PSR-3 placeholders
+#    https://docs.sentry.io/platforms/php/guides/symfony/#monolog-integration
+#    services:
+#        Monolog\Processor\PsrLogMessageProcessor:
+#            tags: { name: monolog.processor, handler: sentry }

config/services.yaml

@@ -39,6 +39,13 @@ services:
         arguments:
             $username: '%app.usetreno.username%'
             $password: '%app.usetreno.password%'
+            $retryCount: 2
+            $retryWaitSeconds: 0.5
+
+    App\Service\Remote\UsetrenoQRCodeProvider:
+        arguments:
+            $retryCount: 2
+            $retryWaitSeconds: 0.5
 
     App\Service\CachedQRCodeGenerator:
         arguments:

src/Controller/ExceptionController.php

@@ -0,0 +1,17 @@
+<?php
+
+namespace App\Controller;
+
+use Symfony\Bundle\FrameworkBundle\Controller\AbstractController;
+use Symfony\Component\Routing\Attribute\Route;
+
+/**
+ * Used for testing error handling (sentry...)
+ */
+class ExceptionController extends AbstractController
+{
+    #[Route("give-me-error-please/exception")]
+    public function makeException(): void {
+        throw new \InvalidArgumentException("There is exception");
+    }
+}

src/Entity/Remote/Usetreno/AuthRequest.php

@@ -1,4 +1,5 @@
 <?php
+declare(strict_types=1);
 
 namespace App\Entity\Remote\Usetreno;
 

src/Service/Remote/Exception/UsetrenoQRCodeRemoteServerErrorException.php

@@ -0,0 +1,9 @@
+<?php
+declare(strict_types=1);
+
+namespace App\Service\Remote\Exception;
+
+class UsetrenoQRCodeRemoteServerErrorException extends UsetrenoQRCodeException
+{
+
+}

src/Service/Remote/RetryingFailClientTrait.php

@@ -0,0 +1,59 @@
+<?php
+
+namespace App\Service\Remote;
+
+use App\Service\Remote\Exception\AuthorizeException;
+use Exception;
+use Psr\Log\LoggerInterface;
+use Symfony\Component\HttpClient\Exception\TransportException;
+
+trait RetryingFailClientTrait
+{
+    /**
+     * Lepsi zopakovat request kvuli drobnemu vypadku site nebo sluzby (u nedestruktivni operace)
+     * nez hodit klientovi rovnou 500
+     *
+     * @param int $count
+     * @param float $sleep
+     * @param array<string> $catchableExceptions
+     * @param LoggerInterface $logger
+     * @param callable $callback
+     * @return mixed
+     * @throws Exception
+     */
+    protected function retryingFailRequest(
+        int $count,
+        float $sleep,
+        array $catchableExceptions,
+        LoggerInterface $logger,
+        callable $callback
+    ): mixed {
+        for ($i = 0; ; $i++) {
+            try {
+                return $callback();
+            } catch (Exception $e) {
+                foreach ($catchableExceptions as $exceptionClass) {
+                    if ($e instanceof $exceptionClass) {
+                        $logger->error("transport: fail request retrying... got catchable exception", [
+                            'exception' => $e,
+                            'try' => $i
+                        ]);
+
+                        usleep((int) ($sleep * 1_000_000));
+
+                        if ($i == $count) {
+                            throw $e;
+                        }
+
+                        continue 2;
+                    }
+                }
+
+                throw $e;
+            }
+        }
+
+        // phpstan fail
+        return null;
+    }
+}

src/Service/Remote/UsetrenoHttpClient.php

@@ -5,7 +5,9 @@ namespace App\Service\Remote;
 
 use App\Entity\Remote\Usetreno\AuthRequest;
 use App\Service\Remote\Exception\AuthorizeException;
+use Nubium\Exception\ThisShouldNeverHappenException;
 use Psr\Log\LoggerInterface;
+use Symfony\Component\HttpClient\Exception\TransportException;
 use Symfony\Contracts\HttpClient\Exception\ClientExceptionInterface;
 use Symfony\Contracts\HttpClient\Exception\RedirectionExceptionInterface;
 use Symfony\Contracts\HttpClient\Exception\ServerExceptionInterface;
@@ -16,12 +18,16 @@ use Symfony\Contracts\HttpClient\ResponseStreamInterface;
 
 class UsetrenoHttpClient implements HttpClientInterface
 {
+    use RetryingFailClientTrait;
+
     const AUTHORIZE_API = "https://topapi.top-test.cz/chameleon/api/v1/token";
 
     protected ?string $authorizationToken = null;
 
     public function __construct(protected HttpClientInterface $innerClient, protected readonly LoggerInterface $logger, protected readonly string $username,
-                                protected readonly string $password) { }
+                                protected readonly string $password,
+                                protected readonly float $retryWaitSeconds,
+                                protected readonly int $retryCount) { }
 
     /**
      * @param string $method
@@ -88,6 +94,8 @@ class UsetrenoHttpClient implements HttpClientInterface
             "AUTHORIZE_API" => static::AUTHORIZE_API
         ]);
 
+        $responseData = $this->retryingFailRequest($this->retryCount, $this->retryWaitSeconds,
+            [AuthorizeException::class, TransportException::class], $this->logger, function() {
             $rq = $this->innerClient->request(
                 "POST",
                 static::AUTHORIZE_API,
@@ -110,6 +118,13 @@ class UsetrenoHttpClient implements HttpClientInterface
                 throw new AuthorizeException("Return code is not 200 OK (got: code: $statusCode)");
             }
 
+            return $responseData;
+        });
+
+        if (!is_string($responseData)) {
+            throw new ThisShouldNeverHappenException("responseData is not a string");
+        }
+
         $this->authorizationToken = $this->processAuthorizeResponse($responseData);
         $this->innerClient = $this->innerClient->withOptions([
             'headers' => [

src/Service/Remote/UsetrenoQRCodeProvider.php

@@ -7,16 +7,23 @@ use App\Entity\DTO\QRCode\QRCode;
 use App\Service\CacheableQRCodeGeneratorInterface;
 use App\Service\Remote\Edge\QRCodeEntityConverter;
 use App\Service\Remote\Exception\UsetrenoQRCodeException;
+use App\Service\Remote\Exception\UsetrenoQRCodeRemoteServerErrorException;
+use Nubium\Exception\ThisShouldNeverHappenException;
 use Psr\Log\LoggerInterface;
+use Symfony\Component\HttpClient\Exception\TransportException;
 
 class UsetrenoQRCodeProvider implements CacheableQRCodeGeneratorInterface
 {
+    use RetryingFailClientTrait;
+
     const QRCODE_API = 'https://topapi.top-test.cz/chameleon/api/v1/qr-code/create-for-bank-account-payment';
     const QRCODE_METHOD = 'POST';
 
     public function __construct(protected readonly LoggerInterface $logger,
                                 protected readonly UsetrenoHttpClient $client,
-                                protected readonly QRCodeEntityConverter $codeEntityConverter) { }
+                                protected readonly QRCodeEntityConverter $codeEntityConverter,
+                                protected readonly float $retryWaitSeconds,
+                                protected readonly int $retryCount) { }
 
     public function generateQRCodeFromEntity(QRCode $entity): string
     {
@@ -27,6 +34,9 @@ class UsetrenoQRCodeProvider implements CacheableQRCodeGeneratorInterface
             "edgeEntity" => $edgeEntity
         ]);
 
+        $responseData = $this->retryingFailRequest($this->retryCount, $this->retryWaitSeconds,
+            [TransportException::class, UsetrenoQRCodeRemoteServerErrorException::class], $this->logger,
+            function() use ($edgeEntity) {
                 $response = $this->client->request(static::QRCODE_METHOD, static::QRCODE_API, [
                     'json' => $edgeEntity,
                 ]);
@@ -41,6 +51,10 @@ class UsetrenoQRCodeProvider implements CacheableQRCodeGeneratorInterface
                         "content" => $responseData,
                     ]);
 
+                    if ($statusCode > 500) {
+                        throw new UsetrenoQRCodeRemoteServerErrorException("Return code is not 200 OK (got: code: $statusCode)");
+                    }
+
                     throw new UsetrenoQRCodeException("Return code is not 200 OK (got: code: $statusCode)");
                 }
 
@@ -48,6 +62,13 @@ class UsetrenoQRCodeProvider implements CacheableQRCodeGeneratorInterface
                     "responseContent" => $responseData,
                 ]);
 
+                return $responseData;
+        });
+
+        if (!is_string($responseData)) {
+            throw new ThisShouldNeverHappenException("responseData is not a string");
+        }
+        
         return $this->parseBase64String($this->processQRCodeResponseEntity($responseData));
     }
 

symfony.lock

@@ -49,6 +49,18 @@
             "tests/bootstrap.php"
         ]
     },
+    "sentry/sentry-symfony": {
+        "version": "4.13",
+        "recipe": {
+            "repo": "github.com/symfony/recipes-contrib",
+            "branch": "main",
+            "version": "4.6",
+            "ref": "153de5f041f7e8a9c19f3674b800b76be0e6fd90"
+        },
+        "files": [
+            "config/packages/sentry.yaml"
+        ]
+    },
     "symfony/asset-mapper": {
         "version": "7.0",
         "recipe": {

tests/Service/Remote/RetryingFailClientTraitTest.php

@@ -0,0 +1,56 @@
+<?php
+
+namespace App\Tests\Service\Remote;
+
+use App\Service\Remote\RetryingFailClientTrait;
+use App\Tests\Common\LoggerTrait;
+use PHPUnit\Framework\TestCase;
+use Psr\Log\LoggerInterface;
+
+class RetryingFailClientTraitTest extends TestCase {
+    use LoggerTrait;
+
+    private int $callCount = 0;
+
+    protected function setUp(): void
+    {
+        parent::setUp(); // TODO: Change the autogenerated stub
+        $this->callCount = 0;
+    }
+
+    public function testSuccess() {
+        $trait = new class {
+            use RetryingFailClientTrait {
+                retryingFailRequest as public; // make the method public
+            }
+        };
+
+
+        $result = $trait->retryingFailRequest(2, 0, [\RuntimeException::class], $this->getLogger(), function () {
+            $this->callCount = $this->callCount + 1;
+            return 'foo';
+        });
+
+        $this->assertEquals(1, $this->callCount);
+        $this->assertEquals('foo', $result);
+    }
+    public function testRetyingFail() {
+        $trait = new class {
+            use RetryingFailClientTrait {
+                retryingFailRequest as public; // make the method public
+            }
+        };
+
+
+        try {
+            $trait->retryingFailRequest(2, 0, [\RuntimeException::class], $this->getLogger(), function () {
+                $this->callCount = $this->callCount + 1;
+                throw new \RuntimeException("test");
+            });
+        } catch (\RuntimeException) {
+            // do nothing
+        }
+
+        $this->assertEquals(3, $this->callCount);
+    }
+}

tests/Service/Remote/UsetrenoHttpClientTest.php

@@ -24,7 +24,7 @@ class UsetrenoHttpClientTest extends TestCase
         ]);
         $authorizedRequestResponse = clone $authMockResponse;
         $mockedClient = new MockHttpClient([$authMockResponse, $authorizedRequestResponse]);
-        $client = new UsetrenoHttpClient($mockedClient, $this->getLogger(), "foo", "bar");
+        $client = new UsetrenoHttpClient($mockedClient, $this->getLogger(), "foo", "bar", 0, 0);
         $client->request("POST", "https://www.root.cz/");
         $this->assertEquals("https://topapi.top-test.cz/chameleon/api/v1/token", $authMockResponse->getRequestUrl());
         $headers = $authorizedRequestResponse->getRequestOptions()['headers'];
@@ -48,7 +48,7 @@ class UsetrenoHttpClientTest extends TestCase
 
         $authorizedRequestResponse = clone $authMockResponse;
         $mockedClient = new MockHttpClient([$authMockResponse, $authorizedRequestResponse]);
-        $client = new UsetrenoHttpClient($mockedClient, $this->getLogger(), "foo", "bar");
+        $client = new UsetrenoHttpClient($mockedClient, $this->getLogger(), "foo", "bar", 0, 0);
         $client->request("POST", "https://www.root.cz/");
     }
 }

tests/Service/Remote/UsetrenoQRCodeProviderTest.php

@@ -75,7 +75,7 @@ class UsetrenoQRCodeProviderTest extends TestCase
             ->method('convert')
             ->will($this->returnValue($edgeEntity));
 
-        return new UsetrenoQRCodeProvider($this->getLogger(), $mock, $converterMock);
+        return new UsetrenoQRCodeProvider($this->getLogger(), $mock, $converterMock, 0, 0);
     }
 
     protected function createQRCodeEntityPair() {