diff --git a/pubsub/api/src/subscriber_error_listener.php b/pubsub/api/src/subscriber_error_listener.php new file mode 100644 index 0000000000..6e8e5fcf29 --- /dev/null +++ b/pubsub/api/src/subscriber_error_listener.php @@ -0,0 +1,61 @@ + $projectId, + ]); + $subscription = $pubsub->subscription($subscriptionId, $topicName); + + try { + $messages = $subscription->pull(); + foreach ($messages as $message) { + printf('PubSub Message: %s' . PHP_EOL, $message->data()); + $subscription->acknowledge($message); + } + } catch (\Exception $e) { // Handle unrecoverable exceptions + printf('Exception Message: %s' . PHP_EOL, $e->getMessage()); + printf('StackTrace: %s' . PHP_EOL, $e->getTraceAsString()); + } +} +# [END pubsub_subscriber_error_listener] +require_once __DIR__ . '/../../../testing/sample_helpers.php'; +\Google\Cloud\Samples\execute_sample(__FILE__, __NAMESPACE__, $argv); diff --git a/pubsub/api/test/pubsubTest.php b/pubsub/api/test/pubsubTest.php index 7f07e39afc..0996f40015 100644 --- a/pubsub/api/test/pubsubTest.php +++ b/pubsub/api/test/pubsubTest.php @@ -509,4 +509,57 @@ public function testCreateAndDeleteUnwrappedSubscription() $this->assertMatchesRegularExpression('/Subscription deleted:/', $output); $this->assertMatchesRegularExpression(sprintf('/%s/', $subscription), $output); } + + public function testSubscriberErrorListener() + { + $topic = $this->requireEnv('GOOGLE_PUBSUB_TOPIC'); + $subscription = 'test-subscription-' . rand(); + + // Create subscription + $output = $this->runFunctionSnippet('create_subscription', [ + self::$projectId, + $topic, + $subscription, + ]); + $this->assertMatchesRegularExpression('/Subscription created:/', $output); + $this->assertMatchesRegularExpression(sprintf('/%s/', $subscription), $output); + + // Publish Message + $testMessage = 'This is a test message'; + $output = $this->runFunctionSnippet('publish_message', [ + self::$projectId, + $topic, + $testMessage, + ]); + $this->assertMatchesRegularExpression('/Message published/', $output); + + // Pull messages from subscription with error listener + $output = $this->runFunctionSnippet('subscriber_error_listener', [ + self::$projectId, + $topic, + $subscription + ]); + // Published message should be received as expected and no exception should be thrown + $this->assertMatchesRegularExpression(sprintf('/PubSub Message: %s/', $testMessage), $output); + $this->assertDoesNotMatchRegularExpression('/Exception Message/', $output); + + // Delete subscription + $output = $this->runFunctionSnippet('delete_subscription', [ + self::$projectId, + $subscription, + ]); + $this->assertMatchesRegularExpression('/Subscription deleted:/', $output); + $this->assertMatchesRegularExpression(sprintf('/%s/', $subscription), $output); + + // Pull messages from a non-existent subscription with error listener + $subscription = 'test-subscription-' . rand(); + $output = $this->runFunctionSnippet('subscriber_error_listener', [ + self::$projectId, + $topic, + $subscription + ]); + // NotFound exception should be caught and printed + $this->assertMatchesRegularExpression('/Exception Message/', $output); + $this->assertMatchesRegularExpression(sprintf('/Resource not found \(resource=%s\)/', $subscription), $output); + } }