1package main
2
3import (
4 "demo/wxpay_utility"
5 "encoding/json"
6 "fmt"
7 "net/http"
8 "net/url"
9 "strings"
10)
11
12func main() {
13
14 config, err := wxpay_utility.CreateMchConfig(
15 "19xxxxxxxx",
16 "1DDE55AD98Exxxxxxxxxx",
17 "/path/to/apiclient_key.pem",
18 "PUB_KEY_ID_xxxxxxxxxxxxx",
19 "/path/to/wxp_pub.pem",
20 )
21 if err != nil {
22 fmt.Println(err)
23 return
24 }
25
26 request := &UnionQueryByOutTradeNoRequest{
27 CombineOutTradeNo: wxpay_utility.String("P20150806125346"),
28 }
29
30 response, err := UnionQueryByOutTradeNo(config, request)
31 if err != nil {
32 fmt.Printf("请求失败: %+v\n", err)
33
34 return
35 }
36
37
38 fmt.Printf("请求成功: %+v\n", response)
39}
40
41func UnionQueryByOutTradeNo(config *wxpay_utility.MchConfig, request *UnionQueryByOutTradeNoRequest) (response *UnionApiv3UnionQueryResponse, err error) {
42 const (
43 host = "https://api.mch.weixin.qq.com"
44 method = "GET"
45 path = "/v3/combine-transactions/out-trade-no/{combine_out_trade_no}"
46 )
47
48 reqUrl, err := url.Parse(fmt.Sprintf("%s%s", host, path))
49 if err != nil {
50 return nil, err
51 }
52 reqUrl.Path = strings.Replace(reqUrl.Path, "{combine_out_trade_no}", url.PathEscape(*request.CombineOutTradeNo), -1)
53 httpRequest, err := http.NewRequest(method, reqUrl.String(), nil)
54 if err != nil {
55 return nil, err
56 }
57 httpRequest.Header.Set("Accept", "application/json")
58 httpRequest.Header.Set("Wechatpay-Serial", config.WechatPayPublicKeyId())
59 authorization, err := wxpay_utility.BuildAuthorization(config.MchId(), config.CertificateSerialNo(), config.PrivateKey(), method, reqUrl.RequestURI(), nil)
60 if err != nil {
61 return nil, err
62 }
63 httpRequest.Header.Set("Authorization", authorization)
64
65 client := &http.Client{}
66 httpResponse, err := client.Do(httpRequest)
67 if err != nil {
68 return nil, err
69 }
70 respBody, err := wxpay_utility.ExtractResponseBody(httpResponse)
71 if err != nil {
72 return nil, err
73 }
74 if httpResponse.StatusCode >= 200 && httpResponse.StatusCode < 300 {
75
76 err = wxpay_utility.ValidateResponse(
77 config.WechatPayPublicKeyId(),
78 config.WechatPayPublicKey(),
79 &httpResponse.Header,
80 respBody,
81 )
82 if err != nil {
83 return nil, err
84 }
85 response := &UnionApiv3UnionQueryResponse{}
86 if err := json.Unmarshal(respBody, response); err != nil {
87 return nil, err
88 }
89
90 return response, nil
91 } else {
92 return nil, wxpay_utility.NewApiException(
93 httpResponse.StatusCode,
94 httpResponse.Header,
95 respBody,
96 )
97 }
98}
99
100type UnionQueryByOutTradeNoRequest struct {
101 CombineOutTradeNo *string `json:"combine_out_trade_no,omitempty"`
102}
103
104func (o *UnionQueryByOutTradeNoRequest) MarshalJSON() ([]byte, error) {
105 type Alias UnionQueryByOutTradeNoRequest
106 a := &struct {
107 CombineOutTradeNo *string `json:"combine_out_trade_no,omitempty"`
108 *Alias
109 }{
110
111 CombineOutTradeNo: nil,
112 Alias: (*Alias)(o),
113 }
114 return json.Marshal(a)
115}
116
117type UnionApiv3UnionQueryResponse struct {
118 CombineAppid *string `json:"combine_appid,omitempty"`
119 CombineMchid *string `json:"combine_mchid,omitempty"`
120 CombineOutTradeNo *string `json:"combine_out_trade_no,omitempty"`
121 CombinePayerInfo *UnionCommRespPayerInfo `json:"combine_payer_info,omitempty"`
122 SceneInfo *UnionCommRespSceneInfo `json:"scene_info,omitempty"`
123 SubOrders []UnionSubOrder `json:"sub_orders,omitempty"`
124}
125
126type UnionCommRespPayerInfo struct {
127 Openid *string `json:"openid,omitempty"`
128}
129
130type UnionCommRespSceneInfo struct {
131 DeviceId *string `json:"device_id,omitempty"`
132}
133
134type UnionSubOrder struct {
135 Mchid *string `json:"mchid,omitempty"`
136 SubMchid *string `json:"sub_mchid,omitempty"`
137 SubAppid *string `json:"sub_appid,omitempty"`
138 SubOpenid *string `json:"sub_openid,omitempty"`
139 OutTradeNo *string `json:"out_trade_no,omitempty"`
140 TransactionId *string `json:"transaction_id,omitempty"`
141 TradeType *string `json:"trade_type,omitempty"`
142 TradeState *string `json:"trade_state,omitempty"`
143 BankType *string `json:"bank_type,omitempty"`
144 Attach *string `json:"attach,omitempty"`
145 SuccessTime *string `json:"success_time,omitempty"`
146 Amount *UnionCommRespAmountInfo `json:"amount,omitempty"`
147 PromotionDetail []UnionPromotionDetail `json:"promotion_detail,omitempty"`
148}
149
150type UnionCommRespAmountInfo struct {
151 TotalAmount *int64 `json:"total_amount,omitempty"`
152 PayerAmount *int64 `json:"payer_amount,omitempty"`
153 Currency *string `json:"currency,omitempty"`
154 PayerCurrency *string `json:"payer_currency,omitempty"`
155 SettlementRate *int64 `json:"settlement_rate,omitempty"`
156}
157
158type UnionPromotionDetail struct {
159 CouponId *string `json:"coupon_id,omitempty"`
160 Name *string `json:"name,omitempty"`
161 Scope *string `json:"scope,omitempty"`
162 Type *string `json:"type,omitempty"`
163 Amount *int64 `json:"amount,omitempty"`
164 StockId *string `json:"stock_id,omitempty"`
165 WechatpayContribute *int64 `json:"wechatpay_contribute,omitempty"`
166 MerchantContribute *int64 `json:"merchant_contribute,omitempty"`
167 OtherContribute *int64 `json:"other_contribute,omitempty"`
168 Currency *string `json:"currency,omitempty"`
169 GoodsDetail []GoodsDetailInPromotion `json:"goods_detail,omitempty"`
170}
171
172type GoodsDetailInPromotion struct {
173 GoodsId *string `json:"goods_id,omitempty"`
174 Quantity *int64 `json:"quantity,omitempty"`
175 UnitPrice *int64 `json:"unit_price,omitempty"`
176 DiscountAmount *int64 `json:"discount_amount,omitempty"`
177 GoodsRemark *string `json:"goods_remark,omitempty"`
178}
179
