向用户发放商品券

1curl -X POST \
2  https://api.mch.weixin.qq.com/v3/marketing/busifavor/product-coupons/send \
3  -H "Authorization: WECHATPAY2-SHA256-RSA2048 mchid=\"1900000001\",..." \
4  -H "Accept: application/json" \
5  -H "Content-Type: application/json" \
6  -d '{
7    "openid" : "xsd3434454567676",
8    "appid" : "wx1234567889999",
9    "stock_id" : "12312354",
10    "out_request_no" : "2335465",
11    "coupon_code" : "202007019999",
12    "coupon_type" : "NORMAL",
13    "member_card_id" : "pbLatjvWOibDc5-TBnbUk1pD12o0"
14  }'

1package com.java.demo;
2
3import com.java.utils.WXPayUtility; // 引用微信支付工具库，参考：https://pay.weixin.qq.com/doc/v3/merchant/4014931831
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 * 向用户发放商品券
24 */
25public class SendProductCoupon {
26  private static String HOST = "https://api.mch.weixin.qq.com";
27  private static String METHOD = "POST";
28  private static String PATH = "/v3/marketing/busifavor/product-coupons/send";
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/v3/merchant/4013070756
32    SendProductCoupon client = new SendProductCoupon(
33      "19xxxxxxxx",                    // 商户号，是由微信支付系统生成并分配给每个商户的唯一标识符，商户号获取方式参考 https://pay.weixin.qq.com/doc/v3/merchant/4013070756
34      "1DDE55AD98Exxxxxxxxxx",         // 商户API证书序列号，如何获取请参考 https://pay.weixin.qq.com/doc/v3/merchant/4013053053
35      "/path/to/apiclient_key.pem",     // 商户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/v3/merchant/4013038816
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    SendProductCouponRequest request = new SendProductCouponRequest();
41    request.openid = "xsd3434454567676";
42    request.appid = "wx1234567889999";
43    request.stockId = "12312354";
44    request.outRequestNo = "2335465";
45    request.couponCode = "202007019999";
46    request.couponType = "NORMAL";
47    request.memberCardId = "pbLatjvWOibDc5-TBnbUk1pD12o0";
48    try {
49      SendProductCouponResponse response = client.run(request);
50        // TODO: 请求成功，继续业务逻辑
51        System.out.println(response);
52    } catch (WXPayUtility.ApiException e) {
53        // TODO: 请求失败，根据状态码执行不同的逻辑
54        e.printStackTrace();
55    }
56  }
57
58  public SendProductCouponResponse run(SendProductCouponRequest request) {
59    String uri = PATH;
60    String reqBody = WXPayUtility.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", WXPayUtility.buildAuthorization(mchid, 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 = WXPayUtility.extractBody(httpResponse);
75      if (httpResponse.code() >= 200 && httpResponse.code() < 300) {
76        // 2XX 成功，验证应答签名
77        WXPayUtility.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 WXPayUtility.fromJson(respBody, SendProductCouponResponse.class);
82      } else {
83        throw new WXPayUtility.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 mchid;
91  private final String certificateSerialNo;
92  private final PrivateKey privateKey;
93  private final String wechatPayPublicKeyId;
94  private final PublicKey wechatPayPublicKey;
95
96  public SendProductCoupon(String mchid, String certificateSerialNo, String privateKeyFilePath, String wechatPayPublicKeyId, String wechatPayPublicKeyFilePath) {
97    this.mchid = mchid;
98    this.certificateSerialNo = certificateSerialNo;
99    this.privateKey = WXPayUtility.loadPrivateKeyFromPath(privateKeyFilePath);
100    this.wechatPayPublicKeyId = wechatPayPublicKeyId;
101    this.wechatPayPublicKey = WXPayUtility.loadPublicKeyFromPath(wechatPayPublicKeyFilePath);
102  }
103
104  public static class SendProductCouponRequest {
105    @SerializedName("openid")
106    public String openid;
107  
108    @SerializedName("appid")
109    public String appid;
110  
111    @SerializedName("stock_id")
112    public String stockId;
113  
114    @SerializedName("out_request_no")
115    public String outRequestNo;
116  
117    @SerializedName("coupon_code")
118    public String couponCode;
119  
120    @SerializedName("coupon_type")
121    public String couponType;
122  
123    @SerializedName("member_card_id")
124    public String memberCardId;
125  }
126  
127  public static class SendProductCouponResponse {
128    @SerializedName("send_coupon_result")
129    public SendCouponResult sendCouponResult;
130  }
131  
132  public static class SendCouponResult {
133    @SerializedName("stock_id")
134    public String stockId;
135  
136    @SerializedName("out_request_no")
137    public String outRequestNo;
138  
139    @SerializedName("coupon_code")
140    public String couponCode;
141  }
142  
143}
144
145

1package main
2
3import (
4	"bytes"
5	"demo/wxpay_utility" // 引用微信支付工具库，参考 https://pay.weixin.qq.com/doc/v3/merchant/4015119334
6	"encoding/json"
7	"fmt"
8	"net/http"
9	"net/url"
10)
11
12func main() {
13	// TODO: 请准备商户开发必要参数，参考：https://pay.weixin.qq.com/doc/v3/merchant/4013070756
14	config, err := wxpay_utility.CreateMchConfig(
15		"19xxxxxxxx",                 // 商户号，是由微信支付系统生成并分配给每个商户的唯一标识符，商户号获取方式参考 https://pay.weixin.qq.com/doc/v3/merchant/4013070756
16		"1DDE55AD98Exxxxxxxxxx",      // 商户API证书序列号，如何获取请参考 https://pay.weixin.qq.com/doc/v3/merchant/4013053053
17		"/path/to/apiclient_key.pem", // 商户API证书私钥文件路径，本地文件路径
18		"PUB_KEY_ID_xxxxxxxxxxxxx",   // 微信支付公钥ID，如何获取请参考 https://pay.weixin.qq.com/doc/v3/merchant/4013038816
19		"/path/to/wxp_pub.pem",       // 微信支付公钥文件路径，本地文件路径
20	)
21	if err != nil {
22		fmt.Println(err)
23		return
24	}
25
26	request := &SendProductCouponRequest{
27		Openid:       wxpay_utility.String("xsd3434454567676"),
28		Appid:        wxpay_utility.String("wx1234567889999"),
29		StockId:      wxpay_utility.String("12312354"),
30		OutRequestNo: wxpay_utility.String("2335465"),
31		CouponCode:   wxpay_utility.String("202007019999"),
32		CouponType:   wxpay_utility.String("NORMAL"),
33		MemberCardId: wxpay_utility.String("pbLatjvWOibDc5-TBnbUk1pD12o0"),
34	}
35
36	response, err := SendProductCoupon(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 SendProductCoupon(config *wxpay_utility.MchConfig, request *SendProductCouponRequest) (response *SendProductCouponResponse, err error) {
48	const (
49		host   = "https://api.mch.weixin.qq.com"
50		method = "POST"
51		path   = "/v3/marketing/busifavor/product-coupons/send"
52	)
53
54	reqUrl, err := url.Parse(fmt.Sprintf("%s%s", host, path))
55	if err != nil {
56		return nil, err
57	}
58	reqBody, err := json.Marshal(request)
59	if err != nil {
60		return nil, err
61	}
62	httpRequest, err := http.NewRequest(method, reqUrl.String(), bytes.NewReader(reqBody))
63	if err != nil {
64		return nil, err
65	}
66	httpRequest.Header.Set("Accept", "application/json")
67	httpRequest.Header.Set("Wechatpay-Serial", config.WechatPayPublicKeyId())
68	httpRequest.Header.Set("Content-Type", "application/json")
69	authorization, err := wxpay_utility.BuildAuthorization(config.MchId(), config.CertificateSerialNo(), config.PrivateKey(), method, reqUrl.RequestURI(), reqBody)
70	if err != nil {
71		return nil, err
72	}
73	httpRequest.Header.Set("Authorization", authorization)
74
75	client := &http.Client{}
76	httpResponse, err := client.Do(httpRequest)
77	if err != nil {
78		return nil, err
79	}
80	respBody, err := wxpay_utility.ExtractResponseBody(httpResponse)
81	if err != nil {
82		return nil, err
83	}
84	if httpResponse.StatusCode >= 200 && httpResponse.StatusCode < 300 {
85		// 2XX 成功，验证应答签名
86		err = wxpay_utility.ValidateResponse(
87			config.WechatPayPublicKeyId(),
88			config.WechatPayPublicKey(),
89			&httpResponse.Header,
90			respBody,
91		)
92		if err != nil {
93			return nil, err
94		}
95		response := &SendProductCouponResponse{}
96		if err := json.Unmarshal(respBody, response); err != nil {
97			return nil, err
98		}
99
100		return response, nil
101	} else {
102		return nil, wxpay_utility.NewApiException(
103			httpResponse.StatusCode,
104			httpResponse.Header,
105			respBody,
106		)
107	}
108}
109
110type SendProductCouponRequest struct {
111	Openid       *string `json:"openid,omitempty"`
112	Appid        *string `json:"appid,omitempty"`
113	StockId      *string `json:"stock_id,omitempty"`
114	OutRequestNo *string `json:"out_request_no,omitempty"`
115	CouponCode   *string `json:"coupon_code,omitempty"`
116	CouponType   *string `json:"coupon_type,omitempty"`
117	MemberCardId *string `json:"member_card_id,omitempty"`
118}
119
120type SendProductCouponResponse struct {
121	SendCouponResult *SendCouponResult `json:"send_coupon_result,omitempty"`
122}
123
124type SendCouponResult struct {
125	StockId      *string `json:"stock_id,omitempty"`
126	OutRequestNo *string `json:"out_request_no,omitempty"`
127	CouponCode   *string `json:"coupon_code,omitempty"`
128}
129