How to use PHP and Youpai Cloud API to implement cloud storage speed limit and traffic control functions

How to use PHP and Youpai Cloud API to implement cloud storage speed limit and flow control functions

Introduction:
With the rise of cloud computing, cloud storage services are becoming more and more common. Among them, Youpaiyun, as a leading cloud storage service provider, provides developers with rich API interfaces to facilitate the realization of various functional requirements. This article will introduce how to use PHP and Youpai Cloud API to implement cloud storage speed limit and traffic control functions.

1. Introduction to Youpaiyun API
Youpaiyun's API provides developers with a rich set of functional interfaces, including file upload, file download, file deletion, etc. This article mainly focuses on interfaces related to speed limit and flow control.

1. File upload interface
   Youpaiyun's file upload interface supports the configuration of speed limit and flow control. By setting the "X-Upyun-Multi-Stage" field, you can control the upload speed and traffic. The following is a sample code:

$upyun_bucket = "your_bucket";
$upyun_username = "your_username";
$upyun_password = "your_password";
$local_filepath = "local_file_path";
$remote_filepath = "remote_file_path";

$ch = curl_init();
curl_setopt($ch, CURLOPT_URL, "http://v0.api .upyun.com/{$upyun_bucket}/{$remote_filepath}");
curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
curl_setopt($ch, CURLOPT_USERPWD, "{$upyun_username}:{$upyun_password} ");
curl_setopt($ch, CURLOPT_HTTPHEADER, array("X-Upyun-Multi-Stage:1m:4096k"));
curl_setopt($ch, CURLOPT_UPLOAD, true);
curl_setopt($ ch, CURLOPT_INFILE, fopen("{$local_filepath}", "r"));
curl_setopt($ch, CURLOPT_INFILESIZE, filesize("{$local_filepath}"));
curl_exec($ch);
curl_close($ch);
?>

In the above code, we use the curl library to implement the function of uploading files. By setting the CURLOPT_HTTPHEADER option, we can pass the X-Upyun-Multi-Stage field to configure rate limiting and flow control parameters. The format of this field is "{limit_speed}:{limit_traffic}", where limit_speed represents the speed limit parameter and limit_traffic represents the restricted traffic parameter. For example, "1m:4096k" means that the upload speed is limited to 1MB/s and the traffic is limited to 4096KB.

2. File download interface
   The file download interface of Youpaiyun also supports the configuration of speed limit and flow control. By setting the "X-Upyun-Single-Limit" field, you can control the download speed and traffic. The following is a sample code:

$upyun_bucket = "your_bucket";
$upyun_username = "your_username";
$upyun_password = "your_password";
$remote_filepath = "remote_file_path";

header("Content-Type: application/octet-stream");
header("Content-Disposition: attachment; filename=" . basename($remote_filepath ));

$ch = curl_init();
curl_setopt($ch, CURLOPT_URL, "http://v0.api.upyun.com/{$upyun_bucket}/{$remote_filepath}") ;
curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
curl_setopt($ch, CURLOPT_USERPWD, "{$upyun_username}:{$upyun_password}");
curl_setopt($ch, CURLOPT_HTTPHEADER, array(" X-Upyun-Single-Limit:1m:4096k"));
curl_exec($ch);
curl_close($ch);
?>

In the above code, We use the curl library to implement the function of downloading files. By setting the CURLOPT_HTTPHEADER option, we can pass the X-Upyun-Single-Limit field to configure rate limit and flow control parameters. The format of this field is the same as the parameter format of the upload interface.

2. Usage Example
Next, we will use a simple example to demonstrate how to use PHP and Youpai Cloud API to implement the speed limit and flow control functions of cloud storage.

Suppose we need to upload a file with a size of 10MB, limit the upload speed to 500KB/s, and limit the upload traffic to 2MB. Here is the sample code:

$upyun_bucket = "your_bucket";
$upyun_username = "your_username";
$upyun_password = "your_password";
$local_filepath = "local_file_path";
$remote_filepath = "remote_file_path";

$ch = curl_init();
curl_setopt($ch, CURLOPT_URL, "http://v0.api.upyun.com /{$upyun_bucket}/{$remote_filepath}");
curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
curl_setopt($ch, CURLOPT_USERPWD, "{$upyun_username}:{$upyun_password}");
curl_setopt($ch, CURLOPT_HTTPHEADER, array("X-Upyun-Multi-Stage:500k:2048k"));
curl_setopt($ch, CURLOPT_UPLOAD, true);
curl_setopt($ch, CURLOPT_INFILE, fopen("{$local_filepath}", "r"));
curl_setopt($ch, CURLOPT_INFILESIZE, filesize("{$local_filepath}"));
curl_exec($ch);
curl_close( $ch);
?>

In the above code, we set the upload speed limit to 500KB/s and the upload traffic limit to 2MB.

Conclusion:
By using PHP and Youpai Cloud API, we can easily implement the speed limit and flow control functions of cloud storage. By setting the speed limit and flow control parameters of the upload and download interfaces, we can flexibly control the upload and download speeds of files, thereby improving user experience and saving traffic costs. I hope this article will help you understand how to use PHP and Youpai Cloud API to implement cloud storage speed limit and flow control functions.

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