申请退券
更新时间:2024.09.20商户可以在退款之后调用退券API,调用了该接口后,券在用户卡包内正常展示,用户可在有效期内正常使用该优惠券。
若券过期状态下退款,可不用调用该退券API。
前置条件:券的状态为USED
接口说明
支持商户:【普通商户】
请求方式:【POST】/v3/marketing/busifavor/coupons/return
请求域名:【主域名】https://api.mch.weixin.qq.com 使用该域名将访问就近的接入点
【备域名】https://api2.mch.weixin.qq.com 使用该域名将访问异地的接入点 ,指引点击查看
请求参数
Header HTTP头参数
Authorization 必填 string
请参考签名认证生成认证信息
Accept 必填 string
请设置为application/json
Content-Type 必填 string
请设置为application/json
body 包体参数
coupon_code 必填 string
【券code】券的唯一标识
stock_id 必填 string
【批次号】券的所属批次号
return_request_no 必填 string(128)
【退券请求单据号】每次退券请求的唯一标识,商户需保证唯一
请求示例
POST
1curl -X POST \ 2 https://api.mch.weixin.qq.com/v3/marketing/busifavor/coupons/return \ 3 -H "Authorization: WECHATPAY2-SHA256-RSA2048 mchid=\"1900000001\",..." \ 4 -H "Accept: application/json" \ 5 -H "Content-Type: application/json" \ 6 -d '{ 7 "coupon_code" : "sxxe34343434", 8 "stock_id" : "1234567891", 9 "return_request_no" : "1002600620019090123143254436" 10 }' 11
需配合微信支付工具库 WXPayUtility 使用,请参考Java
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 * 申请退券 24 */ 25public class ReturnCoupon { 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/coupons/return"; 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 ReturnCoupon client = new ReturnCoupon( 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 ReturnCouponRequest request = new ReturnCouponRequest(); 41 request.couponCode = "sxxe34343434"; 42 request.stockId = "1234567891"; 43 request.returnRequestNo = "1002600620019090123143254436"; 44 try { 45 ReturnCouponResponse response = client.run(request); 46 // TODO: 请求成功,继续业务逻辑 47 System.out.println(response); 48 } catch (WXPayUtility.ApiException e) { 49 // TODO: 请求失败,根据状态码执行不同的逻辑 50 e.printStackTrace(); 51 } 52 } 53 54 public ReturnCouponResponse run(ReturnCouponRequest request) { 55 String uri = PATH; 56 String reqBody = WXPayUtility.toJson(request); 57 58 Request.Builder reqBuilder = new Request.Builder().url(HOST + uri); 59 reqBuilder.addHeader("Accept", "application/json"); 60 reqBuilder.addHeader("Wechatpay-Serial", wechatPayPublicKeyId); 61 reqBuilder.addHeader("Authorization", WXPayUtility.buildAuthorization(mchid, certificateSerialNo,privateKey, METHOD, uri, reqBody)); 62 reqBuilder.addHeader("Content-Type", "application/json"); 63 RequestBody requestBody = RequestBody.create(MediaType.parse("application/json; charset=utf-8"), reqBody); 64 reqBuilder.method(METHOD, requestBody); 65 Request httpRequest = reqBuilder.build(); 66 67 // 发送HTTP请求 68 OkHttpClient client = new OkHttpClient.Builder().build(); 69 try (Response httpResponse = client.newCall(httpRequest).execute()) { 70 String respBody = WXPayUtility.extractBody(httpResponse); 71 if (httpResponse.code() >= 200 && httpResponse.code() < 300) { 72 // 2XX 成功,验证应答签名 73 WXPayUtility.validateResponse(this.wechatPayPublicKeyId, this.wechatPayPublicKey, 74 httpResponse.headers(), respBody); 75 76 // 从HTTP应答报文构建返回数据 77 return WXPayUtility.fromJson(respBody, ReturnCouponResponse.class); 78 } else { 79 throw new WXPayUtility.ApiException(httpResponse.code(), respBody, httpResponse.headers()); 80 } 81 } catch (IOException e) { 82 throw new UncheckedIOException("Sending request to " + uri + " failed.", e); 83 } 84 } 85 86 private final String mchid; 87 private final String certificateSerialNo; 88 private final PrivateKey privateKey; 89 private final String wechatPayPublicKeyId; 90 private final PublicKey wechatPayPublicKey; 91 92 public ReturnCoupon(String mchid, String certificateSerialNo, String privateKeyFilePath, String wechatPayPublicKeyId, String wechatPayPublicKeyFilePath) { 93 this.mchid = mchid; 94 this.certificateSerialNo = certificateSerialNo; 95 this.privateKey = WXPayUtility.loadPrivateKeyFromPath(privateKeyFilePath); 96 this.wechatPayPublicKeyId = wechatPayPublicKeyId; 97 this.wechatPayPublicKey = WXPayUtility.loadPublicKeyFromPath(wechatPayPublicKeyFilePath); 98 } 99 100 public static class ReturnCouponRequest { 101 @SerializedName("coupon_code") 102 public String couponCode; 103 104 @SerializedName("stock_id") 105 public String stockId; 106 107 @SerializedName("return_request_no") 108 public String returnRequestNo; 109 } 110 111 public static class ReturnCouponResponse { 112 @SerializedName("wechatpay_return_time") 113 public String wechatpayReturnTime; 114 } 115 116} 117
需配合微信支付工具库 wxpay_utility 使用,请参考Go
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 "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/v3/merchant/4013070756 15 config, err := wxpay_utility.CreateMchConfig( 16 "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 17 "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 18 "/path/to/apiclient_key.pem", // 商户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/v3/merchant/4013038816 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 := &ReturnCouponRequest{ 28 CouponCode: wxpay_utility.String("sxxe34343434"), 29 StockId: wxpay_utility.String("1234567891"), 30 ReturnRequestNo: wxpay_utility.String("1002600620019090123143254436"), 31 } 32 33 response, err := ReturnCoupon(config, request) 34 if err != nil { 35 fmt.Printf("请求失败: %+v\n", err) 36 // TODO: 请求失败,根据状态码执行不同的处理 37 return 38 } 39 40 // TODO: 请求成功,继续业务逻辑 41 fmt.Printf("请求成功: %+v\n", response) 42} 43 44func ReturnCoupon(config *wxpay_utility.MchConfig, request *ReturnCouponRequest) (response *ReturnCouponResponse, err error) { 45 const ( 46 host = "https://api.mch.weixin.qq.com" 47 method = "POST" 48 path = "/v3/marketing/busifavor/coupons/return" 49 ) 50 51 reqUrl, err := url.Parse(fmt.Sprintf("%s%s", host, path)) 52 if err != nil { 53 return nil, err 54 } 55 reqBody, err := json.Marshal(request) 56 if err != nil { 57 return nil, err 58 } 59 httpRequest, err := http.NewRequest(method, reqUrl.String(), bytes.NewReader(reqBody)) 60 if err != nil { 61 return nil, err 62 } 63 httpRequest.Header.Set("Accept", "application/json") 64 httpRequest.Header.Set("Wechatpay-Serial", config.WechatPayPublicKeyId()) 65 httpRequest.Header.Set("Content-Type", "application/json") 66 authorization, err := wxpay_utility.BuildAuthorization(config.MchId(), config.CertificateSerialNo(), config.PrivateKey(), method, reqUrl.RequestURI(), reqBody) 67 if err != nil { 68 return nil, err 69 } 70 httpRequest.Header.Set("Authorization", authorization) 71 72 client := &http.Client{} 73 httpResponse, err := client.Do(httpRequest) 74 if err != nil { 75 return nil, err 76 } 77 respBody, err := wxpay_utility.ExtractResponseBody(httpResponse) 78 if err != nil { 79 return nil, err 80 } 81 if httpResponse.StatusCode >= 200 && httpResponse.StatusCode < 300 { 82 // 2XX 成功,验证应答签名 83 err = wxpay_utility.ValidateResponse( 84 config.WechatPayPublicKeyId(), 85 config.WechatPayPublicKey(), 86 &httpResponse.Header, 87 respBody, 88 ) 89 if err != nil { 90 return nil, err 91 } 92 response := &ReturnCouponResponse{} 93 if err := json.Unmarshal(respBody, response); err != nil { 94 return nil, err 95 } 96 97 return response, nil 98 } else { 99 return nil, wxpay_utility.NewApiException( 100 httpResponse.StatusCode, 101 httpResponse.Header, 102 respBody, 103 ) 104 } 105} 106 107type ReturnCouponRequest struct { 108 CouponCode *string `json:"coupon_code,omitempty"` 109 StockId *string `json:"stock_id,omitempty"` 110 ReturnRequestNo *string `json:"return_request_no,omitempty"` 111} 112 113type ReturnCouponResponse struct { 114 WechatpayReturnTime *time.Time `json:"wechatpay_return_time,omitempty"` 115} 116
应答参数
200 OK
wechatpay_return_time 必填 string
【系统退券成功的时间】微信退券成功的时间,遵循rfc3339标准格式,格式为yyyy-MM-DDTHH:mm:ss+TIMEZONE,yyyy-MM-DD表示年月日,T出现在字符串中,表示time元素的开头,HH:mm:ss表示时分秒,TIMEZONE表示时区(+08:00表示东八区时间,领先UTC 8小时,即北京时间)。例如:2015-05-20T13:29:35+08:00表示,北京时间2015年5月20日 13点29分35秒。
应答示例
200 OK
1{ 2 "wechatpay_return_time" : "2020-05-20T13:29:35+08:00" 3} 4
错误码
公共错误码
状态码 | 错误码 | 描述 | 解决方案 |
---|---|---|---|
400 | PARAM_ERROR | 参数错误 | 请根据错误提示正确传入参数 |
400 | INVALID_REQUEST | HTTP 请求不符合微信支付 APIv3 接口规则 | 请参阅 接口规则 |
401 | SIGN_ERROR | 验证不通过 | 请参阅 签名常见问题 |
500 | SYSTEM_ERROR | 系统异常,请稍后重试 | 请稍后重试 |
业务错误码
状态码 | 错误码 | 描述 | 解决方案 |
---|---|---|---|
400 | RESOURCE_ALREADY_EXISTS | 已使用过此单号退券 | 请更换单号重试 |
403 | NO_AUTH | 商户无权限操作该券 | 请确认调用API商户号 |
403 | RULE_LIMIT | 券当前是可用的 | 请查询券详情确认券当前状态 |
403 | RULE_LIMIT | 券已不在使用有效期 | 券已不在使用有效期,不可退 |
404 | RESOURCE_NOT_EXISTS | 券不存在 | 请检查券code |
404 | RESOURCE_NOT_EXISTS | 券已被删除 | 请查询券详情确认券当前状态 |