產(chǎn)品能力 / APP支付 / 開發(fā)指引

開發(fā)指引

1. 接口規(guī)則

為了在保證支付安全的前提下，帶給商戶簡單、一致且易用的開發(fā)體驗，我們推出了全新的微信支付APIv3接口。該版本API的具體規(guī)則請參考“APIv3接口規(guī)則”

2. 開發(fā)環(huán)境搭建

為了幫助開發(fā)者調(diào)用開放接口，我們提供了Java、PHP、GO語言版本的開發(fā)庫，封裝了簽名生成、簽名驗證、敏感信息加/解密、媒體文件上傳等基礎(chǔ)功能

JAVA Golang PHP

2.1.1. 使用條件

? WechatPay merchant account

? Java 1.8 or later

? Maven or Gradle;

? 0.4.6 or later version of the Java httpClient SDK

2.1.2. 安裝

Gradle：在你的 build.gradle 文件中加入如下的依賴

implementation 'com.github.wechatpay-apiv3:wechatpay-apache-httpclient:0.4.7'

Maven：在 pom.xml 文件中加入以下依賴

<dependency>
<groupId>com.github.wechatpay-apiv3</groupId>
<artifactId>wechatpay-apache-httpclient</artifactId>
<version>0.4.7</version>
</dependency>

2.1.3. 初始化

用WechatPayHttpClientBuilder初始化創(chuàng)建一個httpClient，httpClient將被用于發(fā)送請求調(diào)用微信支付接口。用CertificatesManager初始化一個verifier實例，用于驗證簽名。


    private CloseableHttpClient httpClient;
    private CertificatesManager certificatesManager;
    private Verifier verifier;

    @Before
    //initialize verifier and build httpClient
    public void setup() throws GeneralSecurityException, IOException, HttpCodeException, NotFoundException {

        PrivateKey merchantPrivateKey = PemUtil.loadPrivateKey(privateKey);
        certificatesManager = CertificatesManager.getInstance();
        certificatesManager.putMerchant(merchantId, new WechatPay2Credentials(merchantId,
                        new PrivateKeySigner(merchantSerialNumber, merchantPrivateKey)),
                apiV3Key.getBytes(StandardCharsets.UTF_8));
        verifier = certificatesManager.getVerifier(merchantId);
        WechatPayHttpClientBuilder builder = WechatPayHttpClientBuilder.create()
                .withMerchant(merchantId, merchantSerialNumber, merchantPrivateKey)
                .withValidator(new WechatPay2Validator(verifier));
        httpClient = builder.build();
    }

2.1.4. 通用功能

敏感信息加密敏感信息解密


    @Test
    public void encryptedTest() throws IllegalBlockSizeException {
        String text = "helloWorld";
        String transformation = "RSA/ECB/PKCS1Padding";
        String encryptedText = RsaCryptoUtil.encrypt(text, verifier.getValidCertificate(), transformation);
        System.out.println(encryptedText);
    }


    @Test
    public void decryptedTest() throws BadPaddingException {
        String encryptedText = OBTgun4jiN13n3nmSg8v0MNDMy3mbs380yq4GrgO8vwCqXnvrWxwo3jUCNY2UY7MIOtv/SD8ke64MxcSB0hn5EzKv1LOLprI3NvvmNLS4C3SBulxpZG62RYp1+8FgwAI4M//icXvjtZWVH4KVDg==";
        String transformation = "RSA/ECB/PKCS1Padding";
        String decryptedText = RsaCryptoUtil.decrypt(encryptedText, PemUtil.loadPrivateKey(privateKey), transformation);
        assert("helloWorld".equals(decryptedText));
    }

2.2.1. 使用條件

? WechatPay merchant account

? GO SDK 0.2.13 or later version

2.2.2. 安裝

1. 使用 Go Modules 管理你的項目

如果你的項目還不是使用 Go Modules 做依賴管理，在項目根目錄下執(zhí)行：

go mod init

2. 無需 clone 倉庫中的代碼，直接在項目目錄中執(zhí)行：

go get -u github.com/wechatpay-apiv3/wechatpay-go

來添加依賴，完成 go.mod 修改與 SDK 下載

2.2.3. 初始化

初始化Client并向Client中加載商戶號，私鑰，API V3 key，商戶證書和序列號，用于之后發(fā)送接口請求。


import (
   "context"
   "crypto/rand"
   "crypto/rsa"
   "crypto/x509"
   "encoding/base64"
   "fmt"
   "github.com/wechatpay-apiv3/wechatpay-go/core"
   "github.com/wechatpay-apiv3/wechatpay-go/core/option"
   "github.com/wechatpay-apiv3/wechatpay-go/utils"
   "log"
   "net/http"
)

var (
   mchID                      = ""                  // merchant id
   mchCertificateSerialNumber = "" // merchant certificate serial number
   mchAPIv3Key                = ""                  // merchant api v3 key
   header                     = make(http.Header)
   ctx                        = context.Background()
   cert                       *x509.Certificate
   mchPrivateKey              *rsa.PrivateKey
   client                     *core.Client
   err                        error
)

func setup() {
   //Load platform certificate
   cert, err = utils.LoadCertificateWithPath("Path/To/Platform/Cert")
   if err != nil {
      log.Fatal(err)
   }
   // Load private key
   mchPrivateKey, err = utils.LoadPrivateKeyWithPath("Path/To/Private/Key")
   if err != nil {
      log.Fatal("load merchant private key error")
   }
   // Initialize client which is capable to update platform certificate periodically
   opts := []core.ClientOption{
      option.WithWechatPayAutoAuthCipher(mchID, mchCertificateSerialNumber, mchPrivateKey, mchAPIv3Key),
   }
   client, err = core.NewClient(ctx, opts...)
   if err != nil {
      log.Fatalf("new wechat pay client err:%s", err)
   }
}

2.2.4. 通用功能

敏感信息加密敏感信息解密


func Encryption(t *testing.T) {
	var testRSACryptoUtilMchCertificateStr = `-----BEGIN CERTIFICATE-----
	-----END CERTIFICATE-----`
	testRSACryptoUtilCertificate, _ = LoadCertificate(testRSACryptoUtilMchCertificateStr)
   const message = "hello world"
   
   // 使用OAEP padding方式對證書加密
   ciphertext, _ := EncryptOAEPWithCertificate(message, testRSACryptoUtilCertificate)
   
   // 使用PKCS1 padding對證書加密
   ciphertext, _ := EncryptPKCS1v15WithCertificate(message, testRSACryptoUtilCertificate)
}


func TestDecryption(t *testing.T) {
	var testRSACryptoUtilPrivateKeyStr = `-----BEGIN PRIVATE KEY-----
-----END PRIVATE KEY-----`
	testRSACryptoUtilPrivateKey, _ = LoadPrivateKey(testingKey(testRSACryptoUtilPrivateKeyStr))
	const ciphertext = ""

	// 使用PKCS1 padding進行私鑰解密
	decryptMessage, _ := DecryptPKCS1v15(ciphertext, testRSACryptoUtilPrivateKey)

	// 使用OAEP padding方式私鑰解密
	decryptMessage, _ := DecryptOAEP(ciphertext, testRSACryptoUtilPrivateKey)
}

2.3.1. 使用條件

? Guzzle 7.0，PHP >= 7.2.5

? Guzzle 6.5，PHP >= 7.1.2

? 項目已支持 PHP 8。

2.3.2. 安裝

推薦使用 PHP 包管理工具 Composer 安裝 SDK：

composer require wechatpay/wechatpay

2.3.3. 初始化

初始化Client并向Client中加載商戶號，私鑰，API V3 key，商戶證書和序列號，用于之后發(fā)送接口請求。


require_once('vendor/autoload.php');

use WeChatPay\Builder;
use WeChatPay\Crypto\Rsa;
use WeChatPay\Util\PemUtil;

$merchantId = '190000****';
$merchantPrivateKeyFilePath = 'file:///path/to/merchant/apiclient_key.pem';
$merchantPrivateKeyInstance = Rsa::from($merchantPrivateKeyFilePath, Rsa::KEY_TYPE_PRIVATE);
$merchantCertificateSerial = '3775B6A45ACD588826D15E583A95F5DD********';
$platformCertificateFilePath = 'file:///path/to/wechatpay/cert.pem';
$platformPublicKeyInstance = Rsa::from($platformCertificateFilePath, Rsa::KEY_TYPE_PUBLIC);
$platformCertificateSerial = PemUtil::parseCertificateSerialNo($platformCertificateFilePath);

// init a API V3 instance
$instance = Builder::factory([
    'mchid'      => $merchantId,
    'serial'     => $merchantCertificateSerial,
    'privateKey' => $merchantPrivateKeyInstance,
    'certs'      => [
        $platformCertificateSerial => $platformPublicKeyInstance,
    ],
]);

2.3.4. 通用功能

敏感信息加密敏感信息解密


    $encryptor = static function(string $msg) use ($platformPublicKeyInstance): string {
        return Rsa::encrypt($msg, $platformPublicKeyInstance, OPENSSL_PKCS1_PADDING);
    };
	$encryptedMsg =  $encryptor('HelloWorld');


    $decryptor = static function(string $msg) use ($merchantPrivateKeyInstance): string {
        return Rsa::decrypt($msg, $merchantPrivateKeyInstance, OPENSSL_PKCS1_PADDING);
    };
	$decryptedMsg =  $decryptor('ciphertext');

2.4. 開發(fā)要點說明

IOS開發(fā)要點 Android開發(fā)要點

1. iOS系統(tǒng)OpenSDK升級指引

由于蘋果公司在iOS13系統(tǒng)回收了查詢 App bundleID 的能力，導(dǎo)致微信無法保證授權(quán)憑證能正確返回給AppID對應(yīng)的應(yīng)用。為此，微信支付強烈要求所有商戶盡快升級到OpenSDK1.8.6，并讓用戶及時更新APP，否則安全風(fēng)險將一直存在。謝謝配合！

詳細(xì)OpenSDK升級指引請參見：OpenSDK升級指引

注意

OpenSDK升級后請一定按照文檔要求完成驗證工作，確保OpenSDK升級成功。

2. 開發(fā)配置：

以下項目開發(fā)環(huán)境以Xcode6.0，運行環(huán)境為IOS7.0為例，說明其開發(fā)中需要的操作

I. 項目設(shè)置APPID

商戶在微信開放平臺申請開發(fā)APP應(yīng)用后，微信開放平臺會生成APP的唯一標(biāo)識APPID。在Xcode中打開項目，設(shè)置項目屬性中的URL Schemes為您的APPID。如圖標(biāo)紅位置所示

II. 注冊APPID

商戶APP工程中引入微信lib庫和頭文件，調(diào)用API前，需要先向微信注冊您的APPID，代碼如下：

   [WXApi registerApp：@"wxd930ea5d5a258f4f" withDescription：@"demo 2.0"];

注意

OpenSDK前端拉起支付及SDK回調(diào)的相關(guān)說明

1. 后臺設(shè)置

商戶在微信開放平臺申請開發(fā)應(yīng)用后，微信開放平臺會生成APP的唯一標(biāo)識APPID。由于需要保證支付安全，需要在開放平臺綁定商戶應(yīng)用包名和應(yīng)用簽名，設(shè)置好后才能正常發(fā)起支付。設(shè)置界面在【開放平臺】中的欄目【管理中心 / 修改應(yīng)用 / 修改開發(fā)信息】里面，如圖紅框內(nèi)所示。

應(yīng)用包名：是在APP項目配置文件AndroidManifest.xml中聲明的package值，例如上圖中的package="demo.wxpay.tenpay.com"。

應(yīng)用簽名：根據(jù)項目的應(yīng)用包名和編譯使用的keystore，可由簽名工具生成一個32位的md5串，在調(diào)試的手機上安裝簽名工具后，運行可生成應(yīng)用簽名串，如圖8.9所示，綠色串即應(yīng)用簽名。

點擊下載簽名生成工具

2. 注冊APPID：

商戶APP工程中引入微信JAR包，調(diào)用API前，需要先向微信注冊您的APPID，代碼如下：

final IWXAPI msgApi = WXAPIFactory.createWXAPI(context, null);

// 將該app注冊到微信

msgApi.registerApp("wxd930ea5d5a258f4f");

注意

OpenSDK前端拉起支付及SDK回調(diào)的相關(guān)說明

3. 業(yè)務(wù)時序圖

3.1. 業(yè)務(wù)時序圖

3.2. API接入示例

文檔展示了如何使用微信支付服務(wù)端 SDK 快速接入掃碼支付產(chǎn)品，完成與微信支付對接的部分。

注意

? 文檔中的代碼示例是用來闡述 API 基本使用方法，代碼中的示例參數(shù)需替換成商戶自己賬號及請求參數(shù)才能跑通。

? 以下接入步驟僅提供參考，請商戶結(jié)合自身業(yè)務(wù)需求進行評估、修改。

3.2.1 下單

步驟說明：通過本接口提交微信支付APP支付訂單，獲取預(yù)支付交易單prepay_id。

代碼示例

JAVA Go PHP


 @Test
    //Call Unified Order API
    public void unifiedOrderTest() throws IOException {
      String unifiedOrderBody = String.join("\n" ,
                		"{" ,
                        "'sp_appid': 'wx2421b1c4370ec43b'," ,
                        "'sp_mchid': '10000100'," ,
                        "'sub_mchid': '20000100'," ,
                        "'sub_appid': 'wx352671b037b437ec'," ,
                        "'out_trade_no': '20150806125346'," ,
                        "'merchant_category_code': '1011'," ,
                        "'payer': {" ,
                        "'sp_openid': 'oUpF8uMuAJO_M2pxb1Q9zNjWeS6o'" ,
                        "}," ,
                        "'notify_url': 'https://wxpay.wxutil.com/pub_v2/pay/notify.v2.php'," ,
                        "'trade_type': 'APP'," ,
                        "'amount': {" ,
                        "'total': 10000," ,
                        "'currency': 'HKD'" ,
                        "}," ,
                        "'attach': 'Payment test'," ,
                        "'description': 'In-APP Pay test'," ,
                        "'goods_tag': '," ,
                        "'detail': {" ,
                        "'cost_price': 10000," ,
                        "'receipt_id': '1234'," ,
                        "'goods_detail': [{" ,
                        "'goods_id': 'iphone6s_16G'," ,
                        "'wxpay_goods_id': '1001'," ,
                        "'goods_name': 'iPhone6s 16G'," ,
                        "'quantity': 1," ,
                        "'price': 528800" ,
                        "}]" ,
                        "}," ,
                        "'scene_info': {" ,
                        "'payer_client_ip': '14.23.150.211'," ,
                        "'device_ip': '59.37.125.32'," ,
                        "'device_id': '013467007045764'," ,
                        "'operator_id': 'P001'," ,
                        "'store_info': {" ,
                        "'id': 'SZTX001'" ,
                        "}" ,
                        "}" ,
                        "}").replace("'","\"");
        HttpPost httpPost = new HttpPost("https://apihk.mch.weixin.qq.com/v3/global/transactions/app");
        httpPost.addHeader("Accept", "application/json");
        httpPost.addHeader("Content-type", "application/json; charset=utf-8");
        httpPost.setEntity(new StringEntity(unifiedOrderBody));
        CloseableHttpResponse response = httpClient.execute(httpPost);
        //Process the response
    }


//Call unified order API
func unifiedOrder() {
   orderRequestBody := `{
	"sp_appid": "wx2421b1c4370ec43b",
	"sp_mchid": "10000100",
	"sub_mchid": "20000100",
	"sub_appid": "wx352671b037b437ec",
	"out_trade_no": "20150806125346",
	"merchant_category_code": "1011",
	"payer": {
		"sp_openid": "oUpF8uMuAJO_M2pxb1Q9zNjWeS6o"
	},
	"notify_url": "https://wxpay.wxutil.com/pub_v2/pay/notify.v2.php",
	"trade_type": "APP",
	"amount": {
		"total": 10000,
		"currency": "HKD"
	},
	"attach": "Payment test",
	"description": "In-APP Pay test",
	"goods_tag": "",
	"detail": {
		"cost_price": 10000,
		"receipt_id": "1234",
		"goods_detail": [{
			"goods_id": "iphone6s_16G",
			"wxpay_goods_id": "1001",
			"goods_name": "iPhone6s 16G",
			"quantity": 1,
			"price": 528800
		}]
	},
	"scene_info": {
		"payer_client_ip": "14.23.150.211",
		"device_ip": "59.37.125.32",
		"device_id": "013467007045764",
		"operator_id": "P001",
		"store_info": {
			"id": "SZTX001"
		}
	}
}`
   result, err := client.Post(ctx, "https://apihk.mch.weixin.qq.com/v3/global/transactions/app", orderRequestBody)
   if err != nil {
      // Process error
   }
   log.Printf("status=%d resp=%s", result.Response.StatusCode, result.Response.Body)
}


// Call Unified Order API
public function unifiedOrder($instance){
    try {
        $resp = $instance
            ->chain('v3/global/transactions/app')
            ->post(['json' => [
                'sp_appid'     => 'wxdace645e0bc2c424',
                'sp_mchid'     => '10000100',
                'sub_mchid'    => '20000100',
				'sub_appid'		=> 'wx352671b037b437ec',
                'out_trade_no' => 'YX201710140020Z',
                'merchant_category_code' => '4111',
                'notify_url'   => 'https://weixin.qq.com/',
                'trade_type'   => 'APP',
                'amount'       => [
                    'total'    => 1,
                    'currency' => 'USD'
                ],	
				'payer'			=> [
					'sub_openid' => 'oUpF8uMuAJO_M2pxb1Q9zNjWeS6o'
				],
                'attach'  => 'mini-program payment test',
                'description'  => 'Image形象店-深圳騰大-QQ公仔',
                'goods_tag'  => '001'
            ]]);

        echo $resp->getStatusCode(), PHP_EOL;
        echo $resp->getBody(), PHP_EOL;
    } catch (Exception $e) {
        // EXception handling
        echo $e->getMessage(), PHP_EOL;
        if ($e instanceof \GuzzleHttp\Exception\RequestException && $e->hasResponse()) {
            $r = $e->getResponse();
            echo $r->getStatusCode() . ' ' . $r->getReasonPhrase(), PHP_EOL;
            echo $r->getBody(), PHP_EOL, PHP_EOL, PHP_EOL;
        }
        echo $e->getTraceAsString(), PHP_EOL;
    }
}


									{
										"stock_id": "Python",
										"stock_creator_mchid": "123456",
										"limit": 10,
									}

重要參數(shù)：

notify_url: 接受異步支付結(jié)果回調(diào)通知的地址，通知url必須為外網(wǎng)可訪問的url，不能攜帶參數(shù)。請使用https協(xié)議鏈接

out_trade_no: 商戶系統(tǒng)內(nèi)部訂單號

其他重要參數(shù)請前往APP支付下單API文檔頁面參考。

3.2.2 APP調(diào)起支付

步驟說明：通過APP支付下單接口獲取到發(fā)起支付的必要參數(shù)prepay_id，可以按照接口定義中的規(guī)則，使用微信支付提供的SDK調(diào)起APP支付。

APP調(diào)起支付的參數(shù)需要按照簽名規(guī)則進行簽名計算

構(gòu)造簽名串

   簽名串一共有四行，每一行為一個參數(shù)。行尾以\n（換行符，ASCII編碼值為0x0A）結(jié)束，包括最后一行。
   如果參數(shù)本身以\n結(jié)束，也需要附加一個\n

參與簽名的字段及格式：

   應(yīng)用id
   時間戳
   隨機字符串
   預(yù)支付交易會話ID

待簽名串舉例：

   wx8888888888888888
   1414561699
   5K8264ILTKch16CQ2502SI8ZNMTM67VS
   WX1217752501201407033233368018

計算簽名值：

絕大多數(shù)編程語言提供的簽名函數(shù)支持對簽名數(shù)據(jù) 進行簽名。強烈建議商戶調(diào)用該類函數(shù)，使用商戶私鑰對待簽名串進行SHA256 with RSA簽名，并對簽名結(jié)果進行Base64編碼得到簽名值。

$ echo -n -e \
"wx8888888888888888\n1414561699\n5K8264ILTKCH16CQ2502SI8ZNMTM67VS\nWX1217752501201407033233368018\n" \
  | openssl dgst -sha256 -sign apiclient_key.pem \
  | openssl base64 -A
  uOVRnA4qG/MNnYzdQxJanN+zU+lTgIcnU9Bx7cob8H/4nLBiCwIUFluw==

代碼示例

IOS Android

PayReq *request = [[[PayReq alloc] init] autorelease];
request.partnerId = @"10000100";
request.prepayId= @"1101000000140415649af9fc314aa427";
request.package = @"Sign=WXPay";
request.nonceStr= @"a462b76e7436e98e0ed6e13c64b4fd1c";
request.timeStamp= @"1397527777";
request.sign= @"oR9d8PuhnIc+YZ8cBHFCwfgpaK9gd7vaRvkYD7rthRAZ\/X+QBhcCYL21N7cHCTUxbQ+EAt6Uy+lwSN22f5YZvI45MLko8Pfso0jm46v5hqcVwrk6uddkGuT+Cdvu4WBqDzaDjnNa5UK3GfE1Wfl2gHxIIY5lLdUgWFts17D4WuolLLkiFZV+JSHMvH7eaLdT9N5GBovBwu5yYKUR7skR8Fu+LozcSqQixnlEZUfyE55feLOQTUYzLmR9pNtPbPsu6WVhbNHMS3Ss2+AehHvz+n64GDmXxbX++IOBvm2olHu3PsOUGRwhudhVf7UcGcunXt8cqNjKNqZLhLw4jq\/xDg==";
[WXApi sendReq：request];

IWXAPI api;
PayReq request = new PayReq();
request.appId = "wxd930ea5d5a258f4f";
request.partnerId = "1900000109";
request.prepayId= "1101000000140415649af9fc314aa427",;
request.packageValue = "Sign=WXPay";
request.nonceStr= "1101000000140429eb40476f8896f4c9";
request.timeStamp= "1398746574";
request.sign= "oR9d8PuhnIc+YZ8cBHFCwfgpaK9gd7vaRvkYDSs2+AehHvz+n64GDmXxbX++IOBvm2olHu3PsOUGRwhudhVf7UcGcunXt8cqNjKNqZLhLw4jq\/xDg==";
api.sendReq(request);

重要參數(shù)：

paySign：構(gòu)造的支付簽名

package：暫填寫固定值Sign=WXPay

其他重要參數(shù)請前往APP調(diào)起支付文檔頁面參考。

3.2.3 查詢訂單

步驟說明：商戶在用戶下單一定時間后，需主動進行查單以確認(rèn)訂單狀態(tài)。

代碼示例

JAVA Go PHP


    @Test
    //Call query order API
    public void queryOrderTest() throws IOException {
        HttpGet httpGet = new HttpGet("https://apihk.mch.weixin.qq.com/v3/global/transactions/id/" +
                "4200123456789000?sub_mchid=100012321&sp_mchid=1900000000");
        httpGet.addHeader("Accept", "application/json");
        httpGet.addHeader("Content-type", "application/json; charset=utf-8");
        CloseableHttpResponse response = httpClient.execute(httpGet);
        //Process the response 
    }


//Call query order API
func queryOrder() {
   result, err := client.Get(ctx, "https://apihk.mch.weixin.qq.com/v3/global/transactions/id/4200000000000000?sub_mchid=100012321&sp_mchid=1900000000")
   if err != nil {
      // Process error
   }
   log.Printf("status=%d resp=%s", result.Response.StatusCode, result.Response.Body)
}


// Call query order API
public function queryOrder($instance)
{
    try {
        $resp = $instance
            ->v3->global->transactions->outTradeNo->_out_trade_no_
            ->get([
                    'query' => [
                'sp_mchid'     => '1900000000',
                'sub_mchid'    => '100012321',
                    ],
                    'out_trade_no' => 'YX0001'
                ]
            );

        echo $resp->getStatusCode(), PHP_EOL;
        echo $resp->getBody(), PHP_EOL;
    } catch (Exception $e) {
        // Exception handling
	}
}


									{
										"stock_id": "Python",
										"stock_creator_mchid": "123456",
										"limit": 10,
									}

重要參數(shù)：

id：微信支付訂單號

out_trade_no：商戶內(nèi)部訂單號

可以用上述任一訂單號進行查詢。其他重要參數(shù)請前往查詢訂單API文檔頁面參考。

3.2.4 申請退款

步驟說明：支付完成支付狀態(tài)為SUCCESS后，可以調(diào)用該接口提交退款請求。

代碼示例

JAVA Go PHP


    @Test
    //Call Refund API
    public void refundTest() throws IOException {
		String refundBody = String.join("\n" ,
                		"{" ,
                        "'sp_appid': 'wx2421b1c4370ec43b', " ,
                        "'sp_mchid': '10000100'," ,
                        "'sub_mchid': '20000100'," ,
                        "'transaction_id': '1008450740201411110005820873'," ,
                        "'out_refund_no': 'R20150806125346'," ,
                        "    'amount' : {" ,
                        "        'refund': 5," ,
                        "        'total':10," ,
                        "         'currency':'HKD'" ,
                        "    }," ,
                        "    'reason': 'The item has been sold out.'," ,
                        "    'source': 'REFUND_SOURCE_UNSETTLED_FUNDS'" ,
                        "}").replace("'","\"");
        HttpPost httpPost = new HttpPost("https://apihk.mch.weixin.qq.com/v3/global/refunds");
        httpPost.addHeader("Accept", "application/json");
        httpPost.addHeader("Content-type", "application/json; charset=utf-8");
        httpPost.setEntity(new StringEntity(refundBody));
        CloseableHttpResponse response = httpClient.execute(httpPost);
        //Process the response 
    }


func refund() {
   refundRequestBody := `{
    "sp_appid": "wx2421b1c4370ec43b",
    "sp_mchid": "10000100",
    "sub_mchid": "20000100",
    "transaction_id": "1008450740201411110005820873",
    "out_refund_no": "R20150806125346",
    "amount" : {
        "refund": 50,
        "total":100,
         "currency":"HKD"
    },
    "reason": "The item has been sold out",
    "source": "REFUND_SOURCE_UNSETTLED_FUNDS"
}`
   result, err := client.Post(ctx, "https://apihk.mch.weixin.qq.com/v3/global/refunds", refundRequestBody)
   if err != nil {
      // Process error
   }
   log.Printf("status=%d resp=%s", result.Response.StatusCode, result.Response.Body)
}


// Call Refund API
public function refundOrder($instance){
    try {
        $resp = $instance
            ->chain('v3/global/refunds')
            ->post(['json' => [
                'sp_appid'     => 'wxdace12300000000',
                'sp_mchid'     => '1900000000',
                'sub_mchid'    => '100012321',
                'out_trade_no' => 'YX0001',
                "out_refund_no"=> "REFUNDYX0001",
                'amount'       => [
                    'refund'   => 1,
                    'total'    => 1,
                    'currency' => 'USD'
                ]
            ]]);
        echo $resp->getStatusCode(), PHP_EOL;
        echo $resp->getBody(), PHP_EOL;
    } catch (Exception $e) {
        // Exception handling
    }
}


									{
										"stock_id": "Python",
										"stock_creator_mchid": "123456",
										"limit": 10,
									}

重要參數(shù)：

out_trade_no: 商戶內(nèi)部訂單號

transaction_id: 微信訂單號

out_refund_no: 商戶內(nèi)部退款單號，應(yīng)與訂單號一一對應(yīng)

notify_url: 退款結(jié)果接收地址

其他重要參數(shù)請前往申請退款A(yù)PI文檔頁面參考。

3.2.5 查詢單筆退款

步驟說明：提交退款申請后，通過調(diào)用該接口查詢退款狀態(tài)。

代碼示例

JAVA Go PHP


    @Test
    //Call Query Refund API
    public void querySingleRefundTest() throws IOException {
        HttpGet httpGet = new HttpGet("https://apihk.mch.weixin.qq.com/v3/global/refunds/out-refund-no/RYX001?sub_mchid=100012321&sp_mchid=1900000000");
        httpGet.addHeader("Accept", "application/json");
        httpGet.addHeader("Content-type", "application/json; charset=utf-8");
        CloseableHttpResponse response = httpClient.execute(httpGet);
        //Process the response 
    }


//Query single refund API
func querySingleRefund() {
   result, err := client.Get(ctx, "https://apihk.mch.weixin.qq.com/v3/global/refunds/out-refund-no/REFUNDYX001?sub_mchid=100012321&sp_mchid=1900000000")
   if err != nil {
      // Process error
   }
   log.Printf("status=%d resp=%s", result.Response.StatusCode, result.Response.Body)
}


// Call Query Refund API
public function queryRefund($instance){
    try {
        $resp = $instance
            ->v3->global->refunds->outRefundNo->_out_refund_no_
            ->get([
                'query' => [
                    'sp_mchid' => '1900000000',
                    'sub_mchid'=> '100012321'
                ],
                'out_refund_no' => 'REFUNDYX0001'
            ]);

        echo $resp->getStatusCode(), PHP_EOL;
        echo $resp->getBody(), PHP_EOL;
    } catch (Exception $e) {
        // Exception handling
    }
}


									{
										"stock_id": "Python",
										"stock_creator_mchid": "123456",
										"limit": 10,
									}

重要參數(shù)：

out_trade_no: 商戶內(nèi)部訂單號

refund_id：微信支付退款單號

其他重要參數(shù)請前往查詢單筆退款A(yù)PI文檔頁面參考。

3.2.6 查詢所有退款

步驟說明：提交退款申請后，通過調(diào)用該接口查詢一筆訂單下對應(yīng)的全部退款信息。

代碼示例

JAVA Go PHP


    @Test
    //Call Query All Refund API
    public void queryAllRefundTest() throws IOException {
        HttpGet httpGet = new HttpGet("https://apihk.mch.weixin.qq.com/v3/global/refunds" +
                "?out_trade_no=YX202111100020&count=10&offset=0&sp_mchid=1900000000&sub_mchid=100012321");
        httpGet.addHeader("Accept", "application/json");
        httpGet.addHeader("Content-type", "application/json; charset=utf-8");
        CloseableHttpResponse response = httpClient.execute(httpGet);
        //Process the response 
    }


//Query all refund API
func queryAllRefund() {
   result, err := client.Get(ctx, "https://apihk.mch.weixin.qq.com/v3/global/refunds/out-refund-no/out_trade_no=YX001&count=10&offset=0&sp_mchid=1900000000&sub_mchid=100012321")
   if err != nil {
      // Process error
   }
   log.Printf("status=%d resp=%s", result.Response.StatusCode, result.Response.Body)
}


// Call Query All Refund API
public function queryAllRefund($instance){
    try {
        $resp = $instance
            ->v3->global->refunds
            ->get([
                'query' => [
                    'out_trade_no' => 'YX001',
                    'count' => 10,
                    'offset' => 0,
                    'sp_mchid' => '1900000000',
                    'sub_mchid'=> '100012321'
                ]
            ]);

        echo $resp->getStatusCode(), PHP_EOL;
        echo $resp->getBody(), PHP_EOL;
    } catch (Exception $e) {
        // Exception handling
    }
}


									{
										"stock_id": "Python",
										"stock_creator_mchid": "123456",
										"limit": 10,
									}

重要參數(shù)：

out_trade_no: 商戶內(nèi)部訂單號

transaction_id: 微信訂單號

offset: 分頁起始位置

count: 單頁返回的記錄數(shù)，最大20條記錄.

其他重要參數(shù)請前往查詢所有退款A(yù)PI文檔頁面參考。

3.2.7 下載對賬單

步驟說明：商戶每天可以通過調(diào)用該接口可以下載歷史交易賬單，通過對帳單核對后可以校對更正支付信息。

代碼示例

JAVA Go PHP


    @Test
    //Downloading Reconciliation API
    public void downloadReconTest() throws IOException {
        HttpGet httpGet = new HttpGet("https://apihk.mch.weixin.qq.com/v3/global/statements?date=20220401&mchid=1900000000");
        httpGet.addHeader("Accept", "application/json");
        httpGet.addHeader("Content-type", "application/json; charset=utf-8");
        CloseableHttpResponse response = httpClient.execute(httpGet);
        //Process the response 
    }


//Download recon file API
func downloadReconFile() {
   result, err := client.Get(ctx, "https://apihk.mch.weixin.qq.com/v3/global/statements?date=20220401&mchid=1900000000")
   if err != nil {
      // Process error
   }
   log.Printf("status=%d resp=%s", result.Response.StatusCode, result.Response.Body)
}


//Downloading Reconciliation API
public function downloadReconFile($instance){
    try {
        $resp = $instance
            ->v3->global->statements
            ->get([
                'query' => [
                    'date' => '20220401',
                    'mchid' => '1900000000'
                ]
            ]);

        echo $resp->getStatusCode(), PHP_EOL;
        echo $resp->getBody(), PHP_EOL;
    } catch (Exception $e) {
        // Exception handling
    }
}


									{
										"stock_id": "Python",
										"stock_creator_mchid": "123456",
										"limit": 10,
									}

重要參數(shù)：

date: 賬單日期, 格式：20180103

其他重要參數(shù)請前往下載對賬單API文檔頁面參考。

3.2.8 關(guān)閉訂單

步驟說明：下單超過5分鐘后，可以調(diào)用該接口對下單未支付的訂單進行關(guān)單操作，以便商戶更換訂單號重新下單發(fā)起支付或商戶系統(tǒng)退出不再受理后避免用戶繼續(xù)支付。

代碼示例

JAVA Go PHP


    @Test
    //Call close order API
    public void closeOrderTest() throws IOException {
		String closeBody = String.join("\n" ,
                		"{" ,
                        "    'sp_mchid': '10000100'," ,
                        "    'sub_mchid': '20000100'" ,
                        "}").replace("'","\"");
        HttpPost httpPost = new HttpPost("https://apihk.mch.weixin.qq.com/v3/global/transactions/out-trade-no/YX001/close");
        httpPost.addHeader("Accept", "application/json");
        httpPost.addHeader("Content-type", "application/json; charset=utf-8");
        httpPost.setEntity(new StringEntity(closeBody));
        CloseableHttpResponse response = httpClient.execute(httpPost);
        System.out.println(response.getStatusLine().getStatusCode());
    }


//Call close order API
func closeOrder() {
   closeOrderBody := `{
    "sp_mchid": "10000100",
    "sub_mchid": "20000100"
   }`
   result, err := client.Post(ctx, "https://apihk.mch.weixin.qq.com/v3/global/transactions/out-trade-no/YX001/close", closeOrderBody)
   if err != nil {
      // Process error
   }
   log.Printf("status=%d resp=%s", result.Response.StatusCode, result.Response.Body)
}


// Call close order API
public function closeOrder($instance){
    try {
        $resp = $instance
            ->v3->global->transactions->outTradeNo->_out_trade_no_->close
            ->post([
                'json' => [
                'sp_mchid'     => '10000100',
                'sub_mchid'    => '20000100'
                ],
                'out_trade_no' => 'YX0001'
            ]);
        echo $resp->getStatusCode(), PHP_EOL;
        echo $resp->getBody(), PHP_EOL;
    } catch (Exception $e) {
        // Exception handling
    }
}


									{
										"stock_id": "Python",
										"stock_creator_mchid": "123456",
										"limit": 10,
									}

重要參數(shù)：

out_trade_no: 商戶內(nèi)部訂單號

transaction_id: 微信支付訂單號

可以用上述任一訂單號進行查詢。其他重要參數(shù)請前往關(guān)閉訂單API文檔頁面參考。

3.2.9 下載平臺證書

步驟說明：在調(diào)用其他接口之前，需要調(diào)用該接口下載平臺證書用于對返回消息進行驗簽和返回消息中的加密字段進行解密。

代碼示例

JAVA Go PHP


    @Test
    //Call certificate downloading API
    public void certDownloadingTest() throws IOException {
        HttpGet httpGet = new HttpGet("https://apihk.mch.weixin.qq.com/v3/global/certificates");
        httpGet.addHeader("Accept", "application/json");
        httpGet.addHeader("Content-type", "application/json; charset=utf-8");

        CloseableHttpResponse response = httpClient.execute(httpGet);
        //Process the response 
//Get the response body: EntityUtils.toString(response.getEntity());
//Get the response status code: response.getStatusLine().getStatusCode();

        //Instead of calling the API to download platform certificate，
        //We also recommend use the certificateMenager to get the valid certificate
        verifier.getValidCertificate();
    }


//Calling download certificate API
func downloadCert() {
   result, err := client.Get((ctx, "https://apihk.mch.weixin.qq.com/v3/global/certificates"))
   if err != nil {
      if core.IsAPIError(err, "INVALID_REQUEST") {
         //Process invalid request
      }
      // Process other error
   }
   log.Printf("status=%d resp=%s", result.Response.StatusCode, result.Response.Body)
}


// Call download certificate API
public function downloadCert($instance){
    $resp = $instance->chain('v3/global/certificates')->get(
        ['debug' => true] // debug mode，https://docs.guzzlephp.org/en/stable/request-options.html#debug
    );
    echo $resp->getBody(), PHP_EOL;
}


									{
										"stock_id": "Python",
										"stock_creator_mchid": "123456",
										"limit": 10,
									}

重要參數(shù)：無

其他重要參數(shù)請前往下載平臺證書API文檔頁面參考。

3.2.10 支付結(jié)果通知

步驟說明：用戶完成支付后，微信支付會向下單時傳入的notify_url推送支付結(jié)果通知，商戶需要在接收到通知后返回對應(yīng)的信息。

注意

? 同樣的通知可能會多次發(fā)送給商戶系統(tǒng)。商戶系統(tǒng)必須能夠正確處理重復(fù)的通知。推薦的做法是，當(dāng)商戶系統(tǒng)收到通知進行處理時，先檢查對應(yīng)業(yè)務(wù)數(shù)據(jù)的狀態(tài)，并判斷該通知是否已經(jīng)處理。如果未處理，則再進行處理；如果已處理，則直接返回結(jié)果成功。在對業(yè)務(wù)數(shù)據(jù)進行狀態(tài)檢查和處理之前，要采用數(shù)據(jù)鎖進行并發(fā)控制，以避免函數(shù)重入造成的數(shù)據(jù)混亂。

? 如果在所有通知頻率(4小時)后沒有收到微信側(cè)回調(diào)，商戶應(yīng)調(diào)用查詢訂單接口確認(rèn)訂單狀態(tài)。

特別提醒：機構(gòu)系統(tǒng)對于支付結(jié)果通知的內(nèi)容一定要做簽名驗證,并校驗返回的訂單金額是否與商戶側(cè)的訂單金額一致，防止數(shù)據(jù)泄露導(dǎo)致出現(xiàn)“假通知”，造成資金損失。

3.2.10.1 通知規(guī)則

用戶支付完成后，微信會把相關(guān)支付結(jié)果和用戶信息發(fā)送給商戶，商戶需要接收處理后返回應(yīng)答成功。只有支付成功才會通知。

對后臺通知交互時，如果微信收到應(yīng)答不是成功或超時，微信認(rèn)為通知失敗，微信會通過一定的策略定期重新發(fā)起通知，盡可能提高通知的成功率，但微信不保證通知最終能成功。（通知頻率為15s/15s/30s/3m/10m/20m/30m/30m/30m/60m/3h/3h/3h/6h/6h - 總計 24h4m）

3.2.10.2 通知報文

支付結(jié)果通知是以“POST”方法訪問商戶設(shè)置的通知url，通知的數(shù)據(jù)以“JSON”格式通過請求主體（BODY）傳輸。通知的數(shù)據(jù)包括了加密的支付結(jié)果詳情。

下面詳細(xì)描述證書解密的流程

1、從商戶平臺上獲取商戶的密鑰，記為“key”。

2、針對“algorithm”中描述的算法（目前為AEAD_AES_256_GCM），取得對應(yīng)的參數(shù)“nonce”和“associated_data”。

3、使用“key”、“nonce”和“associated_data”對數(shù)據(jù)密文“ciphertext”進行解密（需要先對ciphertext做base64解碼，然后再解密），得到證書內(nèi)容

注意

AEAD_AES_256_GCM算法的接口細(xì)節(jié)，請參考rfc5116。微信支付使用的密鑰key長度為32個字節(jié)，隨機串nonce長度12個字節(jié)，associated_data長度小于16個字節(jié)并可能為空。

3.2.10.3 通知簽名

加密不能保證通知請求來自微信。微信會對發(fā)送給商戶的通知進行簽名，并將簽名值放在通知的HTTP頭Wechatpay-Signature。商戶應(yīng)當(dāng)驗證簽名，以確認(rèn)請求來自微信，而不是其他的第三方。簽名驗證的算法請參考《微信支付API V3簽名驗證》。

3.2.10.4 回調(diào)示例

支付成功結(jié)果通知


{
    "id":"EV-2018022511223320873",
    "create_time":"20180225112233",
    "resource_type":"encrypt-resource",
    "event_type":"TRANSACTION.SUCCESS",
    "resource" : {
        "algorithm":"AEAD_AES_256_GCM",
        "ciphertext": "...",
        "nonce": "...",
        "associated_data": ""
    }
}

商戶對resource對象進行解密后，得到的資源對象示例


{
    "id": "1008450740201411110005820873",
    "sp_appid": "wx2421b1c4370ec43b",
    "sp_mchid": "10000100",
    "sub_mchid": "20000100",
    "out_trade_no": "20150806125346",
    "payer": {
      "sp_openid": "oUpF8uN95-Ptaags6E_roPHg7AG0"
    },
    "amount" : {
        "total": 528800,
        "currency": "HKD",
        "payer_total": 518799,
        "payer_currency": "CNY",
        "exchange_rate" : {
            "type": "SETTLEMENT_RATE",
            "rate": 8000000
        }
    },
    "trade_type": "MICROPAY",
    "trade_state": "SUCCESS",
    "trade_state_desc": "支付成功",
    "bank_type": "CCB_DEBIT",
    "attach": "支付測試",
    "success_time": "2018-06-08T10:34:56+08:00",
    "promotion_detail":[
        {
            "promotion_id":"109519",
            "name":"單品惠-6",
            "scope":"SINGLE",
            "type":"DISCOUNT",
            "amount":1,
            "currency":"HKD",
            "activity_id":"931386",
            "wechatpay_contribute_amount":1,
            "merchant_contribute_amount":0,
            "other_contribute_amount":0,
            "goods_detail":[
                {
                    "goods_id":"iphone6s_16G",
                    "goods_remark":"商品備注",
                    "quantity":1,
                    "price":528800
                }
            ]
        }
    ]
}

3.2.10.5 通知應(yīng)答

支付通知http應(yīng)答碼為200或204才會當(dāng)作正常接收，當(dāng)回調(diào)處理異常時，應(yīng)答的HTTP狀態(tài)碼應(yīng)為500，或者4xx。

注意

當(dāng)商戶后臺應(yīng)答失敗時，微信支付將記錄下應(yīng)答的報文，建議商戶按照以下格式返回。

其他重要參數(shù)請前往支付結(jié)果通知API文檔頁面參考。

3.2.11 退款通知

步驟說明：退款狀態(tài)改變后，微信會把相關(guān)退款結(jié)果發(fā)送給商戶。

注意

? 如果在所有通知頻率(4小時)后沒有收到微信側(cè)回調(diào)，商戶應(yīng)調(diào)用查詢訂單接口確認(rèn)訂單狀態(tài)。

3.2.11.1 通知規(guī)則

退款狀態(tài)改變后，微信會把相關(guān)退款結(jié)果發(fā)送給商戶。

3.2.11.2 通知報文

退款結(jié)果通知是以“POST”方法訪問商戶設(shè)置的通知url，通知的數(shù)據(jù)以“JSON”格式通過請求主體（BODY）傳輸。通知的數(shù)據(jù)包括了加密的退款結(jié)果詳情。

下面詳細(xì)描述證書解密的流程

1、從商戶平臺上獲取商戶的密鑰，記為“key”。

2、針對“algorithm”中描述的算法（目前為AEAD_AES_256_GCM），取得對應(yīng)的參數(shù)“nonce”和“associated_data”。

3、使用“key”、“nonce”和“associated_data”對數(shù)據(jù)密文“ciphertext”進行解密（需要先對ciphertext做base64解碼，然后再解密），得到證書內(nèi)容

注意

3.2.11.3 通知簽名

3.2.11.4 回調(diào)示例

退款通知


{
	"id": "EV-2018022511223320873",
	"create_time": "2018-06-08T10:34:56+08:00",
	"resource_type": "encrypt-resource",
	"event_type": "REFUND.SUCCESS",
	"summary": "退款成功",
	"resource": {
		"original_type": "refund",
		"algorithm": "AEAD_AES_256_GCM",
		"ciphertext": "...",
		"associated_data": "",
		"nonce": "..."
	}
}

商戶對resource對象進行解密后，得到的資源對象示例


{
    "sp_mchid": "1900000100",
    "sub_mchid": "1900000109",
    "transaction_id": "1008450740201411110005820873",
    "out_trade_no": "20150806125346",
    "refund_id": "50200207182018070300011301001",
    "out_refund_no": "7752501201407033233368018",
    "refund_status": "SUCCESS",
    "success_time": "2018-06-08T10:34:56+08:00",
    "recv_account": "招商銀行信用卡0403",
    "fund_source": "REFUND_SOURCE_UNSETTLED_FUNDS",
    "amount" : {
        "total": 528800,
        "currency": "HKD",
        "refund": 528800,
        "payer_total": 528800,
        "payer_refund": 528800,
        "payer_currency": "HKD",
        "exchange_rate" : {
            "type": "SETTLEMENT_RATE",
            "rate": 100000000
        }
    }
}

3.2.11.5 通知應(yīng)答

退款通知http應(yīng)答碼為200或204才會當(dāng)作正常接收，當(dāng)回調(diào)處理異常時，應(yīng)答的HTTP狀態(tài)碼應(yīng)為500，或者4xx。

注意

當(dāng)商戶后臺應(yīng)答失敗時，微信支付將記錄下應(yīng)答的報文，建議商戶按照以下格式返回。

其他重要參數(shù)請前往退款通知API文檔頁面參考。

3.2.12 查詢資金結(jié)算明細(xì)

步驟說明：商戶在交易完結(jié)之后，可按結(jié)算日期查詢已結(jié)算資金明細(xì)（sette_state為SETTLED），也可以查詢未結(jié)算資金明細(xì)（sette_state為UNSETTLE）。

注意

該接口供跨境收單機構(gòu)/直連商戶使用，特別是，日本/澳門機構(gòu)商戶若開通香港錢包業(yè)務(wù)，需要對接該接口。

代碼示例

JAVA Go PHP


    @Test
    //Query Settlement API
    public void querySettlementTest() throws IOException {
        HttpGet httpGet = new HttpGet("https://apihk.mch.weixin.qq.com/v3/global/settle/settlements" +
                "?sub_mchid=100012321&settle_state=SETTLED&settle_start_date=20221225" +
                "&settle_end_date=20221226&offset=10&limit=5");
        httpGet.addHeader("Accept", "application/json");
        httpGet.addHeader("Content-type", "application/json; charset=utf-8");
        CloseableHttpResponse response = httpClient.execute(httpGet);
        //Process the response 
    }


//Query settlement API
func querySettlement() {
   result, err := client.Get(ctx, "https://apihk.mch.weixin.qq.com/v3/global/settle/settlements?sub_mchid=100012321&settle_state=SETTLED&settle_start_date=20221225&settle_end_date=20221226&offset=10&limit=5")
   if err != nil {
      // Process error
   }
   log.Printf("status=%d resp=%s", result.Response.StatusCode, result.Response.Body)
}


//Querying Settlement Info API
public function querySettlementInfo($instance){
    try {
        $resp = $instance
            ->v3->global->settle->settlements
            ->get(['query' => [
                'sub_mchid' => '100012321',
                'settle_state' => 'SETTLED',
                'settle_start_date' => '20221225',
                'settle_end_date' => '20221226',
                'offset' => '10',
                'limit' => '5'
            ]]);

        echo $resp->getStatusCode(), PHP_EOL;
        echo $resp->getBody(), PHP_EOL;
    } catch (\Exception $e) {
        // Exception handling
    }
}


									{
										"stock_id": "Python",
										"stock_creator_mchid": "123456",
										"limit": 10,
									}

重要參數(shù)：

settle_state：資金結(jié)算狀態(tài)，枚舉值：

SETTLED：已結(jié)算

UNSETTLE：未結(jié)算

其他重要參數(shù)請前往查詢資金結(jié)算明細(xì)API文檔頁面參考。

頁面導(dǎo)航

語言

视频一区二区三区自拍_千金肉奴隷1985未删减版在线观看_国产成人黄色视频在线播放_少女免费播放片高清在线观看_国产精品v欧美精品v

WeChat Pay

Feedback

Feedback

Submitted successfully

Feedback

Network exception, please try again later

支付產(chǎn)品

資金類產(chǎn)品

其他產(chǎn)品

開發(fā)指引

1. 接口規(guī)則

2. 開發(fā)環(huán)境搭建

2.1.1. 使用條件

2.1.2. 安裝

2.1.3. 初始化

2.1.4. 通用功能

2.2.1. 使用條件

2.2.2. 安裝

2.2.3. 初始化

2.2.4. 通用功能

2.3.1. 使用條件

2.3.2. 安裝

2.3.3. 初始化

2.3.4. 通用功能

2.4. 開發(fā)要點說明

1. iOS系統(tǒng)OpenSDK升級指引

2. 開發(fā)配置：

1. 后臺設(shè)置

2. 注冊APPID：

3. 業(yè)務(wù)時序圖

3.1. 業(yè)務(wù)時序圖

3.2. API接入示例

3.2.1 下單

3.2.2 APP調(diào)起支付

3.2.3 查詢訂單

3.2.4 申請退款

3.2.5 查詢單筆退款

3.2.6 查詢所有退款

3.2.7 下載對賬單

3.2.8 關(guān)閉訂單

3.2.9 下載平臺證書

3.2.10 支付結(jié)果通知

3.2.10.1 通知規(guī)則

3.2.10.2 通知報文

3.2.10.3 通知簽名

3.2.10.4 回調(diào)示例

3.2.10.5 通知應(yīng)答

3.2.11 退款通知

3.2.11.1 通知規(guī)則

3.2.11.2 通知報文

3.2.11.3 通知簽名

3.2.11.4 回調(diào)示例

3.2.11.5 通知應(yīng)答

3.2.12 查詢資金結(jié)算明細(xì)