使用perl写一个通过ak与sk去认证调用华为云刷新cdn缓存预热的api接口

以下是使用Perl编写的代码示例，用于调用华为云刷新CDN缓存预热API接口：

#!/usr/bin/perl

use strict;
use warnings;
use LWP::UserAgent;
use JSON qw(encode_json);

# Set the AK and SK
my $ak = '<YOUR_AK>';
my $sk = '<YOUR_SK>';

# Set the API endpoint and request URL
my $endpoint = 'https://cdn.myhuaweicloud.com';
my $request_url = '/v1.0/refreshtasks';

# Set the request body parameters
my $request_body = {
    'tasks' => [
        {
            'type' => 'flush',
            'urls' => [
                'http://example.com',
                'https://example.com'
            ]
        },
        {
            'type' => 'preheating',
            'urls' => [
                'http://example.com',
                'https://example.com'
            ],
            'urls_type' => 'file',
            'area' => 'mainland',
            'refresh_type' => 'url'
        }
    ]
};

# Encode the request body parameters as JSON
my $json_request_body = encode_json($request_body);

# Generate the authorization header
my $date = `date -u +%a, %d %b %Y %H:%M:%S GMT`;
chomp($date);
my $auth_header = 'HWS ' . $ak . ':' . hmac_sha1_hex($date, $sk);

# Create a new LWP::UserAgent object
my $ua = LWP::UserAgent->new;

# Set the request headers
my $request_headers = [
    'Content-Type' => 'application/json',
    'X-Auth-Date' => $date,
    'Authorization' => $auth_header
];

# Send the API request
my $response = $ua->post($endpoint . $request_url, content => $json_request_body, headers => $request_headers);

# Check for errors
if ($response->is_success) {
    print "API request successful!\n";
    print "Response:\n" . $response->content . "\n";
} else {
    print "API request failed!\n";
    print "Response:\n" . $response->status_line . "\n";
}

注意：在此示例中，我们使用了HMAC-SHA1算法来生成授权头。您需要安装Crypt::Digest::SHA1模块来使用此算法。您还需要将YOUR_AK和YOUR_SK替换为您自己的华为云AK和SK。