PHP code example of wechatpay / wechatpay-guzzle-middleware

    
        
<?php
require_once('vendor/autoload.php');

/* Start to develop here. Best regards https://php-download.com/ */

    

wechatpay / wechatpay-guzzle-middleware example snippets

use GuzzleHttp\Exception\RequestException;
use WechatPay\GuzzleMiddleware\WechatPayMiddleware;
use WechatPay\GuzzleMiddleware\Util\PemUtil;

// 商户相关配置
$merchantId = '1000100'; // 商户号
$merchantSerialNumber = 'XXXXXXXXXX'; // 商户API证书序列号
$merchantPrivateKey = PemUtil::loadPrivateKey('/path/to/mch/private/key.pem'); // 商户私钥
// 微信支付平台配置
$wechatpayCertificate = PemUtil::loadCertificate('/path/to/wechatpay/cert.pem'); // 微信支付平台证书

// 构造一个WechatPayMiddleware
$wechatpayMiddleware = WechatPayMiddleware::builder()
    ->withMerchant($merchantId, $merchantSerialNumber, $merchantPrivateKey) // 传入商户相关配置
    ->withWechatPay([ $wechatpayCertificate ]) // 可传入多个微信支付平台证书，参数类型为array
    ->build();

// 将WechatPayMiddleware添加到Guzzle的HandlerStack中
$stack = GuzzleHttp\HandlerStack::create();
$stack->push($wechatpayMiddleware, 'wechatpay');

// 创建Guzzle HTTP Client时，将HandlerStack传入
$client = new GuzzleHttp\Client(['handler' => $stack]);


// 接下来，正常使用Guzzle发起API请求，WechatPayMiddleware会自动地处理签名和验签
try {
    $resp = $client->request('GET', 'https://api.mch.weixin.qq.com/v3/...', [ // 注意替换为实际URL
        'headers' => [ 'Accept' => 'application/json' ]
    ]);

    echo $resp->getStatusCode().' '.$resp->getReasonPhrase()."\n";
    echo $resp->getBody()."\n";

    $resp = $client->request('POST', 'https://api.mch.weixin.qq.com/v3/...', [
        'json' => [ // JSON请求体
            'field1' => 'value1',
            'field2' => 'value2'
        ],
        'headers' => [ 'Accept' => 'application/json' ]
    ]);

    echo $resp->getStatusCode().' '.$resp->getReasonPhrase()."\n";
    echo $resp->getBody()."\n";
} catch (RequestException $e) {
    // 进行错误处理
    echo $e->getMessage()."\n";
    if ($e->hasResponse()) {
        echo $e->getResponse()->getStatusCode().' '.$e->getResponse()->getReasonPhrase()."\n";
        echo $e->getResponse()->getBody();
    }
    return;
}

// 参考上述指引说明，并引入 `MediaUtil` 正常初始化，无额外条件
use WechatPay\GuzzleMiddleware\Util\MediaUtil;
// 实例化一个媒体文件流，注意文件后缀名需符合接口要求
$media = new MediaUtil('/your/file/path/with.extension');

// 正常使用Guzzle发起API请求
try {
    $resp = $client->request('POST', 'https://api.mch.weixin.qq.com/v3/[merchant/media/video_upload|marketing/favor/media/image-upload]', [
        'body'    => $media->getStream(),
        'headers' => [
            'Accept'       => 'application/json',
            'content-type' => $media->getContentType(),
        ]
    ]);
    // POST 语法糖
    $resp = $client->post('merchant/media/upload', [
        'body'    => $media->getStream(),
        'headers' => [
            'Accept'       => 'application/json',
            'content-type' => $media->getContentType(),
        ]
    ]);
    echo $resp->getStatusCode().' '.$resp->getReasonPhrase()."\n";
    echo $resp->getBody()."\n";
} catch (Exception $e) {
    echo $e->getMessage()."\n";
    if ($e->hasResponse()) {
        echo $e->getResponse()->getStatusCode().' '.$e->getResponse()->getReasonPhrase()."\n";
        echo $e->getResponse()->getBody();
    }
    return;
}

// 参考上上述说明，引入 `SensitiveInfoCrypto`
use WechatPay\GuzzleMiddleware\Util\SensitiveInfoCrypto;
// 上行加密API 多于 下行解密，默认为加密，实例后直接当方法用即可
$encryptor = new SensitiveInfoCrypto(PemUtil::loadCertificate('/path/to/wechatpay/cert.pem'));

// 正常使用Guzzle发起API请求
try {
    // POST 语法糖
    $resp = $client->post('/v3/applyment4sub/applyment/', [
        'json' => [
            'business_code' => 'APL_98761234',
            'contact_info'  => [
                'contact_name'      => $encryptor('value of `contact_name`'),
                'contact_id_number' => $encryptor('value of `contact_id_number'),
                'mobile_phone'      => $encryptor('value of `mobile_phone`'),
                'contact_email'     => $encryptor('value of `contact_email`'),
            ],
            //...
        ],
        'headers' => [
            // 命令行获取证书序列号
            // openssl x509 -in /path/to/wechatpay/cert.pem -noout -serial | awk -F= '{print $2}'
            // 或者使用工具类获取证书序列号 `PemUtil::parseCertificateSerialNo($certificate)`
            'Wechatpay-Serial' => 'must be the serial number via the downloaded pem file of `/v3/certificates`',
            'Accept'           => 'application/json',
        ],
    ]);
    echo $resp->getStatusCode().' '.$resp->getReasonPhrase()."\n";
    echo $resp->getBody()."\n";
} catch (Exception $e) {
    echo $e->getMessage()."\n";
    if ($e->hasResponse()) {
        echo $e->getResponse()->getStatusCode().' '.$e->getResponse()->getReasonPhrase()."\n";
        echo $e->getResponse()->getBody();
    }
    return;
}

// 单例加解密示例如下
$crypto = new SensitiveInfoCrypto($wechatpayCertificate, $merchantPrivateKey);
$encrypted = $crypto('Alice');
$decrypted = $crypto->setStage('decrypt')($encrypted);

use WechatPay\GuzzleMiddleware\Auth\Signer;
use WechatPay\GuzzleMiddleware\Auth\SignatureResult;
use WechatPay\GuzzleMiddleware\Auth\WechatPay2Credentials;

class CustomSigner implements Signer
{
    public function sign($message)
    {
        // 调用签名RPC服务，然后返回包含签名和证书序列号的SignatureResult
        return new SignatureResult('xxxx', 'yyyyy');
    }
}

$credentials = new WechatPay2Credentials($merchantId, new CustomSigner);

$wechatpayMiddleware = WechatPayMiddleware::builder()
    ->withCredentials($credentials)
    ->withWechatPay([ $wechatpayCertificate ])
    ->build();

use WechatPay\GuzzleMiddleware\Validator;

class NoopValidator implements Validator
{
    public function validate(\Psr\Http\Message\ResponseInterface $response)
    {
        return true;
    }
}

$wechatpayMiddleware = WechatPayMiddleware::builder()
    ->withMerchant($merchantId, $merchantSerialNumber, $merchantPrivateKey)
    ->withValidator(new NoopValidator) // NOTE: 设置一个空的应答签名验证器，**不要**用在业务请求
    ->build();