向用户预发放商品券批次组

1curl -X POST \
2  https://api.mch.weixin.qq.com/brand/marketing/product-coupon/users/oh-394z-6CGkNoJrsDLTTUKiAnp4/pre-send-coupon-bundle \
3  -H "Authorization: WECHATPAY-BRAND-SHA256-RSA2048 brand_id=\"XXXX\",..." \
4  -H "Accept: application/json" \
5  -H "Wechatpay-Serial: PUB_KEY_ID_XXXX"  \
6  -H "Content-Type: application/json" \
7  -d '{
8    "product_coupon_id" : "200000001",
9    "stock_bundle_id" : "100232301",
10    "appid" : "wx233544546545989",
11    "send_request_no" : "34657_20250101_123456",
12    "attach" : "example_attach"
13  }'
14

1package com.java.demo;
2
3import com.java.utils.WXPayBrandUtility; // 引用微信支付工具库，参考：https://pay.weixin.qq.com/doc/brand/4015826861
4
5import com.google.gson.annotations.SerializedName;
6import com.google.gson.annotations.Expose;
7import okhttp3.MediaType;
8import okhttp3.OkHttpClient;
9import okhttp3.Request;
10import okhttp3.RequestBody;
11import okhttp3.Response;
12
13import java.io.IOException;
14import java.io.UncheckedIOException;
15import java.security.PrivateKey;
16import java.security.PublicKey;
17import java.util.ArrayList;
18import java.util.HashMap;
19import java.util.List;
20import java.util.Map;
21
22/**
23 * 向用户预发放商品券批次组
24 */
25public class PreSendUserProductCouponBundle {
26  private static String HOST = "https://api.mch.weixin.qq.com";
27  private static String METHOD = "POST";
28  private static String PATH = "/brand/marketing/product-coupon/users/{openid}/pre-send-coupon-bundle";
29
30  public static void main(String[] args) {
31    // TODO: 请准备商户开发必要参数，参考：https://pay.weixin.qq.com/doc/brand/4015415289
32    PreSendUserProductCouponBundle client = new PreSendUserProductCouponBundle(
33      "xxxxxxxx",                    // 品牌ID，是由微信支付系统生成并分配给每个品牌方的唯一标识符，品牌ID获取方式参考 https://pay.weixin.qq.com/doc/brand/4015415289
34      "1DDE55AD98Exxxxxxxxxx",         // 品牌API证书序列号，如何获取请参考 https://pay.weixin.qq.com/doc/brand/4015407570
35      "/path/to/apiclient_key.pem",     // 品牌API证书私钥文件路径，本地文件路径
36      "PUB_KEY_ID_xxxxxxxxxxxxx",      // 微信支付公钥ID，如何获取请参考 https://pay.weixin.qq.com/doc/brand/4015453439
37      "/path/to/wxp_pub.pem"           // 微信支付公钥文件路径，本地文件路径
38    );
39
40    PreSendUserProductCouponBundleRequest request = new PreSendUserProductCouponBundleRequest();
41    request.openid = "oh-394z-6CGkNoJrsDLTTUKiAnp4";
42    request.productCouponId = "200000001";
43    request.stockBundleId = "100232301";
44    request.appid = "wx233544546545989";
45    request.sendRequestNo = "34657_20250101_123456";
46    request.attach = "example_attach";
47    try {
48      PreSendUserProductCouponBundleResponse response = client.run(request);
49        // TODO: 请求成功，继续业务逻辑
50        System.out.println(response);
51    } catch (WXPayBrandUtility.ApiException e) {
52        // TODO: 请求失败，根据状态码执行不同的逻辑
53        e.printStackTrace();
54    }
55  }
56
57  public PreSendUserProductCouponBundleResponse run(PreSendUserProductCouponBundleRequest request) {
58    String uri = PATH;
59    uri = uri.replace("{openid}", WXPayBrandUtility.urlEncode(request.openid));
60    String reqBody = WXPayBrandUtility.toJson(request);
61
62    Request.Builder reqBuilder = new Request.Builder().url(HOST + uri);
63    reqBuilder.addHeader("Accept", "application/json");
64    reqBuilder.addHeader("Wechatpay-Serial", wechatPayPublicKeyId);
65    reqBuilder.addHeader("Authorization", WXPayBrandUtility.buildAuthorization(brand_id, certificateSerialNo,privateKey, METHOD, uri, reqBody));
66    reqBuilder.addHeader("Content-Type", "application/json");
67    RequestBody requestBody = RequestBody.create(MediaType.parse("application/json; charset=utf-8"), reqBody);
68    reqBuilder.method(METHOD, requestBody);
69    Request httpRequest = reqBuilder.build();
70
71    // 发送HTTP请求
72    OkHttpClient client = new OkHttpClient.Builder().build();
73    try (Response httpResponse = client.newCall(httpRequest).execute()) {
74      String respBody = WXPayBrandUtility.extractBody(httpResponse);
75      if (httpResponse.code() >= 200 && httpResponse.code() < 300) {
76        // 2XX 成功，验证应答签名
77        WXPayBrandUtility.validateResponse(this.wechatPayPublicKeyId, this.wechatPayPublicKey,
78            httpResponse.headers(), respBody);
79
80        // 从HTTP应答报文构建返回数据
81        return WXPayBrandUtility.fromJson(respBody, PreSendUserProductCouponBundleResponse.class);
82      } else {
83        throw new WXPayBrandUtility.ApiException(httpResponse.code(), respBody, httpResponse.headers());
84      }
85    } catch (IOException e) {
86      throw new UncheckedIOException("Sending request to " + uri + " failed.", e);
87    }
88  }
89
90  private final String brand_id;
91  private final String certificateSerialNo;
92  private final PrivateKey privateKey;
93  private final String wechatPayPublicKeyId;
94  private final PublicKey wechatPayPublicKey;
95
96  public PreSendUserProductCouponBundle(String brand_id, String certificateSerialNo, String privateKeyFilePath, String wechatPayPublicKeyId, String wechatPayPublicKeyFilePath) {
97    this.brand_id = brand_id;
98    this.certificateSerialNo = certificateSerialNo;
99    this.privateKey = WXPayBrandUtility.loadPrivateKeyFromPath(privateKeyFilePath);
100    this.wechatPayPublicKeyId = wechatPayPublicKeyId;
101    this.wechatPayPublicKey = WXPayBrandUtility.loadPublicKeyFromPath(wechatPayPublicKeyFilePath);
102  }
103
104  public static class PreSendUserProductCouponBundleRequest {
105    @SerializedName("product_coupon_id")
106    public String productCouponId;
107  
108    @SerializedName("stock_bundle_id")
109    public String stockBundleId;
110  
111    @SerializedName("appid")
112    public String appid;
113  
114    @SerializedName("openid")
115    @Expose(serialize = false)
116    public String openid;
117  
118    @SerializedName("send_request_no")
119    public String sendRequestNo;
120  
121    @SerializedName("attach")
122    public String attach;
123  }
124  
125  public static class PreSendUserProductCouponBundleResponse {
126    @SerializedName("token")
127    public String token;
128  }
129  
130}
131

1package main
2
3import (
4	"bytes"
5	"demo/wxpay_brand_utility" // 引用微信支付工具库，参考 https://pay.weixin.qq.com/doc/brand/4015826866
6	"encoding/json"
7	"fmt"
8	"net/http"
9	"net/url"
10	"strings"
11)
12
13func main() {
14	// TODO: 请准备商户开发必要参数，参考：https://pay.weixin.qq.com/doc/brand/4015415289
15	config, err := wxpay_brand_utility.CreateBrandConfig(
16		"xxxxxxxx",                   // 品牌ID，是由微信支付系统生成并分配给每个品牌方的唯一标识符，品牌ID获取方式参考 https://pay.weixin.qq.com/doc/brand/4015415289
17		"1DDE55AD98Exxxxxxxxxx",      // 品牌API证书序列号，如何获取请参考 https://pay.weixin.qq.com/doc/brand/4015407570
18		"/path/to/apiclient_key.pem", // 品牌API证书私钥文件路径，本地文件路径
19		"PUB_KEY_ID_xxxxxxxxxxxxx",   // 微信支付公钥ID，如何获取请参考 https://pay.weixin.qq.com/doc/brand/4015453439
20		"/path/to/wxp_pub.pem",       // 微信支付公钥文件路径，本地文件路径
21	)
22	if err != nil {
23		fmt.Println(err)
24		return
25	}
26
27	request := &PreSendUserProductCouponBundleRequest{
28		Openid:          wxpay_brand_utility.String("oh-394z-6CGkNoJrsDLTTUKiAnp4"),
29		ProductCouponId: wxpay_brand_utility.String("200000001"),
30		StockBundleId:   wxpay_brand_utility.String("100232301"),
31		Appid:           wxpay_brand_utility.String("wx233544546545989"),
32		SendRequestNo:   wxpay_brand_utility.String("34657_20250101_123456"),
33		Attach:          wxpay_brand_utility.String("example_attach"),
34	}
35
36	response, err := PreSendUserProductCouponBundle(config, request)
37	if err != nil {
38		fmt.Printf("请求失败: %+v\n", err)
39		// TODO: 请求失败，根据状态码执行不同的处理
40		return
41	}
42
43	// TODO: 请求成功，继续业务逻辑
44	fmt.Printf("请求成功: %+v\n", response)
45}
46
47func PreSendUserProductCouponBundle(config *wxpay_brand_utility.BrandConfig, request *PreSendUserProductCouponBundleRequest) (response *PreSendUserProductCouponBundleResponse, err error) {
48	const (
49		host   = "https://api.mch.weixin.qq.com"
50		method = "POST"
51		path   = "/brand/marketing/product-coupon/users/{openid}/pre-send-coupon-bundle"
52	)
53
54	reqUrl, err := url.Parse(fmt.Sprintf("%s%s", host, path))
55	if err != nil {
56		return nil, err
57	}
58	reqUrl.Path = strings.Replace(reqUrl.Path, "{openid}", url.PathEscape(*request.Openid), -1)
59	reqBody, err := json.Marshal(request)
60	if err != nil {
61		return nil, err
62	}
63	httpRequest, err := http.NewRequest(method, reqUrl.String(), bytes.NewReader(reqBody))
64	if err != nil {
65		return nil, err
66	}
67	httpRequest.Header.Set("Accept", "application/json")
68	httpRequest.Header.Set("Wechatpay-Serial", config.WechatPayPublicKeyId())
69	httpRequest.Header.Set("Content-Type", "application/json")
70	authorization, err := wxpay_brand_utility.BuildAuthorization(config.BrandId(), config.CertificateSerialNo(), config.PrivateKey(), method, reqUrl.RequestURI(), reqBody)
71	if err != nil {
72		return nil, err
73	}
74	httpRequest.Header.Set("Authorization", authorization)
75
76	client := &http.Client{}
77	httpResponse, err := client.Do(httpRequest)
78	if err != nil {
79		return nil, err
80	}
81	respBody, err := wxpay_brand_utility.ExtractResponseBody(httpResponse)
82	if err != nil {
83		return nil, err
84	}
85	if httpResponse.StatusCode >= 200 && httpResponse.StatusCode < 300 {
86		// 2XX 成功，验证应答签名
87		err = wxpay_brand_utility.ValidateResponse(
88			config.WechatPayPublicKeyId(),
89			config.WechatPayPublicKey(),
90			&httpResponse.Header,
91			respBody,
92		)
93		if err != nil {
94			return nil, err
95		}
96		response := &PreSendUserProductCouponBundleResponse{}
97		if err := json.Unmarshal(respBody, response); err != nil {
98			return nil, err
99		}
100
101		return response, nil
102	} else {
103		return nil, wxpay_brand_utility.NewApiException(
104			httpResponse.StatusCode,
105			httpResponse.Header,
106			respBody,
107		)
108	}
109}
110
111type PreSendUserProductCouponBundleRequest struct {
112	ProductCouponId *string `json:"product_coupon_id,omitempty"`
113	StockBundleId   *string `json:"stock_bundle_id,omitempty"`
114	Appid           *string `json:"appid,omitempty"`
115	Openid          *string `json:"openid,omitempty"`
116	SendRequestNo   *string `json:"send_request_no,omitempty"`
117	Attach          *string `json:"attach,omitempty"`
118}
119
120func (o *PreSendUserProductCouponBundleRequest) MarshalJSON() ([]byte, error) {
121	type Alias PreSendUserProductCouponBundleRequest
122	a := &struct {
123		Openid *string `json:"openid,omitempty"`
124		*Alias
125	}{
126		// 序列化时移除非 Body 字段
127		Openid: nil,
128		Alias:  (*Alias)(o),
129	}
130	return json.Marshal(a)
131}
132
133type PreSendUserProductCouponBundleResponse struct {
134	Token *string `json:"token,omitempty"`
135}
136