How to use Hyperf framework for request retries

How to use the Hyperf framework for request retry

With the unpredictability of network communication, we often encounter request failures in application development. In order to ensure the stability and robustness of the application, we can increase the success rate of requests through the request retry mechanism.

In the Hyperf framework, we can use the Retry component provided by Hyperf to implement the request retry function. This article will introduce in detail how to use the Retry component in the Hyperf framework and give specific code examples.

First, we need to introduce the Retry component in the composer.json file:

"hyperf/retry": "~2.2"

Then run the composer update command to install the component.

Next, we can use the Retry component in the code block that needs to retry the request. For example, when calling the remote interface, you can use the following code to implement request retry:

use HyperfRetryAnnotationRetryable;
use HyperfRetryRetry;

class RemoteService
{
    /**
     * @Retryable(attempts=3, delay=1000)
     */
    public function callRemoteApi($params)
    {
        $url = 'http://remote-api.example.com';
        $response = $this->http->post($url, $params);
        if ($response->getStatusCode() != 200) {
            throw new Exception('Remote API request failed');
        }
        
        return $response->getBody();
    }
}

In the above code, we use the @Retryable annotation to identify the request that needs to be retried. method. @Retryable annotation accepts two optional parameters: attempts represents the maximum number of retries, delay represents the delay time between each retry (unit is milliseconds ). In the above code, we set the maximum number of retries to 3 and the delay between each retry to 1 second.

When we call the callRemoteApi method, if the request fails, the Retry component will automatically retry the request until the maximum number of retries is reached or the request is successful. If the number of retries is exhausted and still fails, the Retry component will throw a HyperfRetryExceptionRetryTimeoutException exception.

In addition to using the @Retryable annotation, we can also use the Retry component through code. The following is a code example:

use HyperfRetryRetry;

class RemoteService
{
    public function callRemoteApi($params)
    {
        $url = 'http://remote-api.example.com';
        $retry = Retry::newInstance()
            ->setMaxAttempts(3)
            ->setDelay(1000);

        $response = $retry->call(function () use ($url, $params) {
            return $this->http->post($url, $params);
        });

        if ($response->getStatusCode() != 200) {
            throw new Exception('Remote API request failed');
        }

        return $response->getBody();
    }
}

In the above code, we create a Retry instance through Retry::newInstance() and pass setMaxAttempts and ## The #setDelay method sets the maximum number of retries and delay time. Then, we use the $retry->call() method to execute the request and process the results of the request.

Summary:

By using the Retry component provided by the Hyperf framework, we can easily implement the request retry function and improve the reliability and stability of the application. In this article, we detail how to use the Retry component in the Hyperf framework and provide specific code examples. I hope this article can help you when using the Hyperf framework to retry requests.

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