品牌会员入会组件预授权

1curl -X POST \
2  https://api.mch.weixin.qq.com/brand/card-member/pre-auth-tokens \
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    "card_id" : "pbLatjvWOibDc5-TBnbUk1pD12o0",
9    "openid" : "obLatjnx9gnqzS4myYGmLZ7LgLBA"
10  }'
11

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 * 品牌会员入会组件预授权
24 */
25public class CreatePreAuthToken {
26  private static String HOST = "https://api.mch.weixin.qq.com";
27  private static String METHOD = "POST";
28  private static String PATH = "/brand/card-member/pre-auth-tokens";
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    CreatePreAuthToken client = new CreatePreAuthToken(
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    CreatePreAuthTokenRequest request = new CreatePreAuthTokenRequest();
41    request.cardId = "pbLatjvWOibDc5-TBnbUk1pD12o0";
42    request.openid = "obLatjnx9gnqzS4myYGmLZ7LgLBA";
43    try {
44      PreAuthToken response = client.run(request);
45        // TODO: 请求成功，继续业务逻辑
46        System.out.println(response);
47    } catch (WXPayBrandUtility.ApiException e) {
48        // TODO: 请求失败，根据状态码执行不同的逻辑
49        e.printStackTrace();
50    }
51  }
52
53  public PreAuthToken run(CreatePreAuthTokenRequest request) {
54    String uri = PATH;
55    String reqBody = WXPayBrandUtility.toJson(request);
56
57    Request.Builder reqBuilder = new Request.Builder().url(HOST + uri);
58    reqBuilder.addHeader("Accept", "application/json");
59    reqBuilder.addHeader("Wechatpay-Serial", wechatPayPublicKeyId);
60    reqBuilder.addHeader("Authorization", WXPayBrandUtility.buildAuthorization(brand_id, certificateSerialNo,privateKey, METHOD, uri, reqBody));
61    reqBuilder.addHeader("Content-Type", "application/json");
62    RequestBody requestBody = RequestBody.create(MediaType.parse("application/json; charset=utf-8"), reqBody);
63    reqBuilder.method(METHOD, requestBody);
64    Request httpRequest = reqBuilder.build();
65
66    // 发送HTTP请求
67    OkHttpClient client = new OkHttpClient.Builder().build();
68    try (Response httpResponse = client.newCall(httpRequest).execute()) {
69      String respBody = WXPayBrandUtility.extractBody(httpResponse);
70      if (httpResponse.code() >= 200 && httpResponse.code() < 300) {
71        // 2XX 成功，验证应答签名
72        WXPayBrandUtility.validateResponse(this.wechatPayPublicKeyId, this.wechatPayPublicKey,
73            httpResponse.headers(), respBody);
74
75        // 从HTTP应答报文构建返回数据
76        return WXPayBrandUtility.fromJson(respBody, PreAuthToken.class);
77      } else {
78        throw new WXPayBrandUtility.ApiException(httpResponse.code(), respBody, httpResponse.headers());
79      }
80    } catch (IOException e) {
81      throw new UncheckedIOException("Sending request to " + uri + " failed.", e);
82    }
83  }
84
85  private final String brand_id;
86  private final String certificateSerialNo;
87  private final PrivateKey privateKey;
88  private final String wechatPayPublicKeyId;
89  private final PublicKey wechatPayPublicKey;
90
91  public CreatePreAuthToken(String brand_id, String certificateSerialNo, String privateKeyFilePath, String wechatPayPublicKeyId, String wechatPayPublicKeyFilePath) {
92    this.brand_id = brand_id;
93    this.certificateSerialNo = certificateSerialNo;
94    this.privateKey = WXPayBrandUtility.loadPrivateKeyFromPath(privateKeyFilePath);
95    this.wechatPayPublicKeyId = wechatPayPublicKeyId;
96    this.wechatPayPublicKey = WXPayBrandUtility.loadPublicKeyFromPath(wechatPayPublicKeyFilePath);
97  }
98
99  public static class CreatePreAuthTokenRequest {
100    @SerializedName("card_id")
101    public String cardId;
102  
103    @SerializedName("openid")
104    public String openid;
105  }
106  
107  public static class PreAuthToken {
108    @SerializedName("token")
109    public String token;
110  
111    @SerializedName("expire_time")
112    public String expireTime;
113  }
114  
115}
116

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	"time"
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 := &CreatePreAuthTokenRequest{
28		CardId: wxpay_brand_utility.String("pbLatjvWOibDc5-TBnbUk1pD12o0"),
29		Openid: wxpay_brand_utility.String("obLatjnx9gnqzS4myYGmLZ7LgLBA"),
30	}
31
32	response, err := CreatePreAuthToken(config, request)
33	if err != nil {
34		fmt.Printf("请求失败: %+v\n", err)
35		// TODO: 请求失败，根据状态码执行不同的处理
36		return
37	}
38
39	// TODO: 请求成功，继续业务逻辑
40	fmt.Printf("请求成功: %+v\n", response)
41}
42
43func CreatePreAuthToken(config *wxpay_brand_utility.BrandConfig, request *CreatePreAuthTokenRequest) (response *PreAuthToken, err error) {
44	const (
45		host   = "https://api.mch.weixin.qq.com"
46		method = "POST"
47		path   = "/brand/card-member/pre-auth-tokens"
48	)
49
50	reqUrl, err := url.Parse(fmt.Sprintf("%s%s", host, path))
51	if err != nil {
52		return nil, err
53	}
54	reqBody, err := json.Marshal(request)
55	if err != nil {
56		return nil, err
57	}
58	httpRequest, err := http.NewRequest(method, reqUrl.String(), bytes.NewReader(reqBody))
59	if err != nil {
60		return nil, err
61	}
62	httpRequest.Header.Set("Accept", "application/json")
63	httpRequest.Header.Set("Wechatpay-Serial", config.WechatPayPublicKeyId())
64	httpRequest.Header.Set("Content-Type", "application/json")
65	authorization, err := wxpay_brand_utility.BuildAuthorization(config.BrandId(), config.CertificateSerialNo(), config.PrivateKey(), method, reqUrl.RequestURI(), reqBody)
66	if err != nil {
67		return nil, err
68	}
69	httpRequest.Header.Set("Authorization", authorization)
70
71	client := &http.Client{}
72	httpResponse, err := client.Do(httpRequest)
73	if err != nil {
74		return nil, err
75	}
76	respBody, err := wxpay_brand_utility.ExtractResponseBody(httpResponse)
77	if err != nil {
78		return nil, err
79	}
80	if httpResponse.StatusCode >= 200 && httpResponse.StatusCode < 300 {
81		// 2XX 成功，验证应答签名
82		err = wxpay_brand_utility.ValidateResponse(
83			config.WechatPayPublicKeyId(),
84			config.WechatPayPublicKey(),
85			&httpResponse.Header,
86			respBody,
87		)
88		if err != nil {
89			return nil, err
90		}
91		response := &PreAuthToken{}
92		if err := json.Unmarshal(respBody, response); err != nil {
93			return nil, err
94		}
95
96		return response, nil
97	} else {
98		return nil, wxpay_brand_utility.NewApiException(
99			httpResponse.StatusCode,
100			httpResponse.Header,
101			respBody,
102		)
103	}
104}
105
106type CreatePreAuthTokenRequest struct {
107	CardId *string `json:"card_id,omitempty"`
108	Openid *string `json:"openid,omitempty"`
109}
110
111type PreAuthToken struct {
112	Token      *string    `json:"token,omitempty"`
113	ExpireTime *time.Time `json:"expire_time,omitempty"`
114}
115