gopay

GoPay

English Document

微信和支付宝的Golang版本SDK

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微信Client

• client := gopay.NewWeChatClient() => 初始化微信支付客户端
• client的其他配置
  • client.SetCountry() => 设置国家地区，默认中国国内

微信支付API

• 统一下单：client.UnifiedOrder()
  • JSAPI - JSAPI支付（或小程序支付）
  • NATIVE - Native支付
  • APP - app支付
  • MWEB - H5支付
• 提交付款码支付：client.Micropay()
• 查询订单：client.QueryOrder()
• 关闭订单：client.CloseOrder()
• 撤销订单：client.Reverse()
• 申请退款：client.Refund()
• 查询退款：client.QueryRefund()
• 下载对账单：client.DownloadBill()
• 下载资金账单：client.DownloadFundFlow()
• 拉取订单评价数据：client.BatchQueryComment()
• 企业向微信用户个人付款：client.Transfer()

微信公共API

• gopay.GetMiniPaySign() => 获取微信小程序支付所需要的paySign
• gopay.GetH5PaySign() => 获取微信内H5支付所需要的paySign
• gopay.GetAppPaySign() => 获取APP支付所需要的paySign
• gopay.ParseWeChatNotifyResultToBodyMap() => 解析微信支付异步通知的参数到BodyMap
• gopay.ParseWeChatNotifyResult() => 解析微信支付异步通知的参数
• gopay.VerifyWeChatResultSignByBodyMap() => 通过BodyMap验证微信支付异步通知的Sign值
• gopay.VerifyWeChatResultSign() => 验证微信支付异步通知的Sign值
• gopay.Code2Session() => 登录凭证校验：获取微信用户OpenId、UnionId、SessionKey
• gopay.GetAccessToken() => 获取小程序全局唯一后台接口调用凭据
• gopay.GetPaidUnionId() => 微信小程序用户支付完成后，获取该用户的 UnionId，无需用户授权
• gopay.GetWeChatUserInfo() => 微信公众号：获取用户基本信息(UnionID机制)
• gopay.DecryptOpenDataToStruct() => 加密数据，解密到指定结构体
• gopay.GetOpenIdByAuthCode() => 授权码查询openid

---

支付宝Client

• client := gopay.NewAliPayClient() => 初始化支付宝支付客户端
• client请求部分公共参数的设置
  • client.SetReturnUrl() => 设置返回URL
  • client.SetNotifyUrl() => 设置异步通知URL
  • client.SetCharset() => 设置字符编码，默认 utf-8
  • client.SetSignType() => 设置签名类型，默认 RSA2
  • client.SetAppAuthToken() => 设置应用授权
  • client.SetAuthToken() => 设置个人信息授权

支付宝支付API

• 手机网站支付接口2.0（手机网站支付）：client.AliPayTradeWapPay()
• 统一收单下单并支付页面接口（电脑网站支付）：client.AliPayTradePagePay()
• APP支付接口2.0（APP支付）：client.AliPayTradeAppPay()
• 统一收单交易支付接口（商家扫用户付款码）：client.AliPayTradePay()
• 统一收单交易创建接口（小程序支付）：client.AliPayTradeCreate()
• 统一收单线下交易查询：client.AliPayTradeQuery()
• 统一收单交易关闭接口：client.AliPayTradeClose()
• 统一收单交易撤销接口：client.AliPayTradeCancel()
• 统一收单交易退款接口：client.AliPayTradeRefund()
• 统一收单退款页面接口：client.AliPayTradePageRefund()
• 统一收单交易退款查询：client.AliPayTradeFastPayRefundQuery()
• 统一收单交易结算接口：client.AliPayTradeOrderSettle()
• 统一收单线下交易预创建（用户扫商品收款码）：client.AliPayTradePrecreate()
• 单笔转账到支付宝账户接口（商户给支付宝用户转账）：client.AlipayFundTransToaccountTransfer()
• 换取授权访问令牌（获取access_token，user_id等信息）：client.AliPaySystemOauthToken()
• 换取应用授权令牌（获取app_auth_token，auth_app_id，user_id等信息）：client.AlipayOpenAuthTokenApp()
• 获取芝麻信用分：client.ZhimaCreditScoreGet()

支付宝公共API

• gopay.AliPaySystemOauthToken() => 换取授权访问令牌（得到access_token，user_id等信息）
• gopay.FormatPrivateKey() => 格式化应用私钥
• gopay.FormatAliPayPublicKey() => 格式化支付宝公钥
• gopay.ParseAliPayNotifyResult() => 解析并返回支付宝支付异步通知的参数
• gopay.VerifyAliPayResultSign() => 支付宝支付异步通知的签名验证
• gopay.DecryptAliPayOpenDataToStruct() => 支付宝小程序敏感加密数据解析到结构体

安装

$ go get -u github.com/iGoogle-ink/gopay

文档

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微信支付

注意：具体参数根据请求的不同而不同，请参考微信官方文档的参数说明！

参考文档：微信支付文档

---

获取微信用户OpenId、UnionId、SessionKey

userIdRsp, err := gopay.Code2Session(appID, secretKey, "")
if err != nil {
	fmt.Println("Error:", err)
	return
}
fmt.Println("OpenID:", userIdRsp.Openid)
fmt.Println("UnionID:", userIdRsp.Unionid)
fmt.Println("SessionKey:", userIdRsp.SessionKey)

微信小程序支付，统一下单成功后，需要进一步获取微信小程序支付所需要的paySign

• 小程序支付所需要的参数，paySign由后端计算
  • timeStamp
  • nonceStr
  • package
  • signType
  • paySign

微信小程序支付官方文档：微信小程序支付API

timeStamp := strconv.FormatInt(time.Now().Unix(), 10)
packages := "prepay_id=" + wxRsp.PrepayId   //此处的 wxRsp.PrepayId ,统一下单成功后得到
//    appId：APPID
//    nonceStr：随即字符串
//    prepayId：统一下单成功后得到的值
//    signType：签名类型
//    timeStamp：时间
//    apiKey：API秘钥值
paySign := gopay.GetMiniPaySign(AppID, wxRsp.NonceStr, packages, gopay.SignType_MD5, timeStamp, ApiKey)

//微信小程序支付需要的参数信息
fmt.Println("paySign：", paySign)

微信内H5支付，统一下单成功后，需要进一步获取微信内H5支付所需要的paySign

• 微信内H5支付所需要的参数，paySign由后端计算
  • appId
  • timeStamp
  • nonceStr
  • package
  • signType
  • paySign > 微信内H5支付官方文档：微信内H5支付文档 ```go timeStamp := strconv.FormatInt(time.Now().Unix(), 10) packages := "prepay_id=" + wxRsp.PrepayId //此处的 wxRsp.PrepayId ,统一下单成功后得到 // appId：APPID // nonceStr：随即字符串 // prepayId：统一下单成功后得到的值 // signType：签名类型 // timeStamp：时间 // apiKey：API秘钥值 paySign := gopay.GetH5PaySign(AppID, wxRsp.NonceStr, packages, gopay.SignType_MD5, timeStamp, ApiKey)

//微信内H5支付需要的参数信息 fmt.Println("paySign：", paySign)

### APP支付，统一下单成功后，需要进一步获取APP支付所需要的paySign

* APP支付所需要的参数，paySign由后端计算
    * appid
    * partnerid
    * noncestr
    * prepayid
    * package 
    * timestamp
    * sign
> APP支付官方文档：[APP端调起支付的参数列表文档](https://pay.weixin.qq.com/wiki/doc/api/app/app.php?chapter=9_12)
```go
timeStamp := strconv.FormatInt(time.Now().Unix(), 10)
//注意：signType：此处签名方式，务必与统一下单时用的签名方式一致
//注意：package：参数因为是固定值，不需开发者再传入
//    appId：APPID
//    partnerid：partnerid
//    nonceStr：随即字符串
//    prepayId：统一下单成功后得到的值
//    signType：此处签名方式，务必与统一下单时用的签名方式一致
//    timeStamp：时间
//    apiKey：API秘钥值
paySign := gopay.GetAppPaySign(appid, partnerid, wxRsp.NonceStr, prepayid, gopay.SignType_MD5, timeStamp, apiKey)

//APP支付需要的参数信息
fmt.Println("paySign：", paySign)

1、解析并返回微信支付异步通知的参数，2、验证Sign值

微信支付后的异步通知文档：支付结果通知

//解析微信支付异步通知的参数
//    req：*http.Request
//    返回参数notifyRsp：Notify请求的参数
//    返回参数err：错误信息
notifyRsp, err := gopay.ParseWeChatNotifyResult(c.Request())
if err != nil {
    fmt.Println("err:", err)
    return
}
fmt.Println("notifyRsp:", notifyRsp)

//验证微信支付异步通知的Sign值
//    apiKey：API秘钥值
//    signType：签名类型 MD5 或 HMAC-SHA256（默认请填写 MD5）
//    notifyRsp：利用 gopay.ParseWeChatNotifyResult() 得到的结构体
//    返回参数ok：是否验证通过
//    返回参数sign：根据参数计算的sign值，非微信返回参数中的Sign
ok, sign := gopay.VerifyWeChatResultSign("192006250b4c09247ec02edce69f6a2d", "MD5", notifyRsp)
log.Println("ok:", ok)
log.Println("sign:", sign)

或者

//解析微信支付异步通知的结果到BodyMap
//    req：*http.Request
//    返回参数bm：Notify请求的参数
//    返回参数err：错误信息
bm, err := gopay.ParseWeChatNotifyResultToBodyMap(c.Request())
if err != nil {
    fmt.Println("err:", err)
    return
}

//通过BodyMap验证微信支付异步通知的Sign值
//    apiKey：API秘钥值
//    signType：签名类型 MD5 或 HMAC-SHA256（默认请填写 MD5）
//    bm：通过 gopay.ParseWeChatNotifyResult() 得到的BodyMap
//    返回参数ok：是否验证通过
//    返回参数sign：计算出的sign值，非微信返回参数中的Sign
ok, sign := gopay.VerifyWeChatResultSignByBodyMap("192006250b4c09247ec02edce69f6a2d", gopay.SignType_MD5, bm)
fmt.Println("ok:", ok)
fmt.Println("sign:", sign)

加密数据，解密到指定结构体

拿小程序获取手机号为例

button按钮获取手机号码：button组件文档

微信解密算法文档：解密算法文档

data := "Kf3TdPbzEmhWMuPKtlKxIWDkijhn402w1bxoHL4kLdcKr6jT1jNcIhvDJfjXmJcgDWLjmBiIGJ5acUuSvxLws3WgAkERmtTuiCG10CKLsJiR+AXVk7B2TUQzsq88YVilDz/YAN3647REE7glGmeBPfvUmdbfDzhL9BzvEiuRhABuCYyTMz4iaM8hFjbLB1caaeoOlykYAFMWC5pZi9P8uw=="
iv := "Cds8j3VYoGvnTp1BrjXdJg=="
sessionKey := "lyY4HPQbaOYzZdG+JcYK9w=="

phone := new(gopay.WeChatUserPhone)
err := gopay.DecryptOpenDataToStruct(data, iv, sessionKey, phone)
if err != nil {
	fmt.Println("err:", err)
	return
}
fmt.Println("PhoneNumber:", phone.PhoneNumber)
fmt.Println("PurePhoneNumber:", phone.PurePhoneNumber)
fmt.Println("CountryCode:", phone.CountryCode)
fmt.Println("Watermark:", phone.Watermark)

微信付款结果异步通知,需回复微信平台是否成功

代码中return写法，由于本人用的 Echo Web框架，有兴趣的可以尝试一下

rsp := new(gopay.WeChatNotifyResponse) //回复微信的数据

rsp.ReturnCode = gopay.SUCCESS
rsp.ReturnMsg = gopay.OK

return c.String(http.StatusOK, rsp.ToXmlString())

统一下单

//初始化微信客户端
//    appId：应用ID
//    mchID：商户ID
//    apiKey：API秘钥值
//    isProd：是否是正式环境
client := gopay.NewWeChatClient("wxd678efh567hg6787", "1230000109", "192006250b4c09247ec02edce69f6a2d", false)

number := gopay.GetRandomString(32)
fmt.Println("out_trade_no:", number)
//初始化参数Map
body := make(gopay.BodyMap)
body.Set("nonce_str", gopay.GetRandomString(32))
body.Set("body", "测试支付")
body.Set("out_trade_no", number)
body.Set("total_fee", 1)
body.Set("spbill_create_ip", "127.0.0.1")
body.Set("notify_url", "http://www.gopay.ink")
body.Set("trade_type", gopay.TradeType_H5)
body.Set("device_info", "WEB")
body.Set("sign_type", gopay.SignType_MD5)

//sceneInfo := make(map[string]map[string]string)
//h5Info := make(map[string]string)
//h5Info["type"] = "Wap"
//h5Info["wap_url"] = "http://www.gopay.ink"
//h5Info["wap_name"] = "H5测试支付"
//sceneInfo["h5_info"] = h5Info
//body.Set("scene_info", sceneInfo)

body.Set("openid", OpenID)

//发起下单请求
wxRsp, err := client.UnifiedOrder(body)
if err != nil {
	fmt.Println("Error:", err)
	return
}
fmt.Println("ReturnCode：", wxRsp.ReturnCode)
fmt.Println("ReturnMsg：", wxRsp.ReturnMsg)
fmt.Println("Appid：", wxRsp.Appid)
fmt.Println("MchId：", wxRsp.MchId)
fmt.Println("DeviceInfo：", wxRsp.DeviceInfo)
fmt.Println("NonceStr：", wxRsp.NonceStr)
fmt.Println("Sign：", wxRsp.Sign)
fmt.Println("ResultCode：", wxRsp.ResultCode)
fmt.Println("ErrCode：", wxRsp.ErrCode)
fmt.Println("ErrCodeDes：", wxRsp.ErrCodeDes)
fmt.Println("PrepayId：", wxRsp.PrepayId)
fmt.Println("TradeType：", wxRsp.TradeType)
fmt.Println("CodeUrl:", wxRsp.CodeUrl)
fmt.Println("MwebUrl:", wxRsp.MwebUrl)

提交付款码支付

//初始化微信客户端
//    appId：应用ID
//    mchID：商户ID
//    apiKey：API秘钥值
//    isProd：是否是正式环境
client := gopay.NewWeChatClient("wxd678efh567hg6787", "1230000109", "192006250b4c09247ec02edce69f6a2d", false)

//初始化参数Map
body := make(gopay.BodyMap)
body.Set("nonce_str", gopay.GetRandomString(32))
body.Set("body", "扫用户付款码支付")
number := gopay.GetRandomString(32)
log.Println("Number:", number)
body.Set("out_trade_no", number)
body.Set("total_fee", 1)
body.Set("spbill_create_ip", "127.0.0.1")
body.Set("notify_url", "http://www.gopay.ink")
body.Set("auth_code", "120061098828009406")
body.Set("sign_type", gopay.SignType_MD5)

//请求支付，成功后得到结果
wxRsp, err := client.Micropay(body)
if err != nil {
	fmt.Println("Error:", err)
}
fmt.Println("Response:", wxRsp)

申请退款

//初始化微信客户端
//    appId：应用ID
//    mchID：商户ID
//    apiKey：API秘钥值
//    isProd：是否是正式环境
client := gopay.NewWeChatClient("wxd678efh567hg6787", "1230000109", "192006250b4c09247ec02edce69f6a2d", false)

//初始化参数结构体
body := make(gopay.BodyMap)
body.Set("out_trade_no", "MfZC2segKxh0bnJSELbvKNeH3d9oWvvQ")
body.Set("nonce_str", gopay.GetRandomString(32))
body.Set("sign_type", gopay.SignType_MD5)
s := gopay.GetRandomString(64)
fmt.Println("s:", s)
body.Set("out_refund_no", s)
body.Set("total_fee", 101)
body.Set("refund_fee", 101)

//请求申请退款（沙箱环境下，证书路径参数可传空）
//    body：参数Body
//    certFilePath：cert证书路径
//    keyFilePath：Key证书路径
//    pkcs12FilePath：p12证书路径
wxRsp, err := client.Refund(body, "", "", "")
if err != nil {
	fmt.Println("Error:", err)
}
fmt.Println("Response：", wxRsp)

企业向微信用户个人付款

参数说明文档：企业付款

注意：默认只支持正式环境，isProd 请填写 true

//初始化微信客户端
//    appId：应用ID
//    MchID：商户ID
//    ApiKey：Key值
//    isProd：是否是正式环境（企业转账到个人账户，默认正式环境）
client := gopay.NewWeChatClient("wxd678efh567hg6787", "1230000109", "192006250b4c09247ec02edce69f6a2d", true)

nonceStr := gopay.GetRandomString(32)
partnerTradeNo := gopay.GetRandomString(32)

fmt.Println("partnerTradeNo:", partnerTradeNo)
//初始化参数结构体
body := make(gopay.BodyMap)
body.Set("nonce_str", nonceStr)
body.Set("partner_trade_no", partnerTradeNo)
body.Set("openid", openid)
body.Set("check_name", "FORCE_CHECK") // NO_CHECK：不校验真实姓名 , FORCE_CHECK：强校验真实姓名
body.Set("re_user_name", "付明明")       //收款用户真实姓名。 如果check_name设置为FORCE_CHECK，则必填用户真实姓名
body.Set("amount", 1)                 //企业付款金额，单位为分
body.Set("desc", "测试转账")              //企业付款备注，必填。注意：备注中的敏感词会被转成字符*
body.Set("spbill_create_ip", "127.0.0.1")

//请求转账
//    body：参数Body
//    certFilePath：cert证书路径
//    keyFilePath：Key证书路径
//    pkcs12FilePath：p12证书路径
wxRsp, err := client.Transfer(body, "apiclient_cert.pem", "apiclient_key.pem", "apiclient_cert.p12")
if err != nil {
    fmt.Println("Error:", err)
    return
}
fmt.Println("wxRsp：", *wxRsp)

---

支付宝支付

注意：具体请求参数根据请求的不同而不同，请参考支付宝官方文档的参数说明！

支付宝官方文档：官方文档

支付宝RSA秘钥生成文档：生成 RSA 密钥

支付宝在线调试：在线调试地址

沙箱环境使用说明：文档地址

---

换取授权访问令牌（得到access_token，user_id等信息）

支付宝换取授权访问令牌文档：换取授权访问令牌

privateKey := "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"
//换取授权访问令牌（默认使用utf-8，RSA2）
//    appId：应用ID
//    privateKey：应用私钥
//    grantType：值为 authorization_code 时，代表用code换取；值为 refresh_token 时，代表用refresh_token换取，传空默认code换取
//    codeOrToken：支付宝授权码或refresh_token
rsp, err := gopay.AlipaySystemOauthToken("2016091200494382", privateKey, "authorization_code", "06e8961891d647c0ac99bb1cebe7SE69")
if err != nil {
	fmt.Println("gopay.AlipaySystemOauthToken:",err)
	return
}
fmt.Println("rsp:", *rsp)

支付宝（小程序）敏感加密数据解析

拿小程序获取手机号为例

获取用户手机号文档：获取用户手机号

敏感信息加解密官方文档：敏感信息加解密方法

data := "MkvuiIZsGOC8S038cu/JIpoRKnF+ZFjoIRGf5d/K4+ctYjCtb/eEkwgrdB5TeH/93bxff1Ylb+SE+UGStlpvcg=="
key := "TDftre9FpItr46e9BVNJcw=="
rsp := new(gopay.PhoneNumberResponse)
err := gopay.DecryptAliPayOpenDataToStruct(data, key, rsp)
if err != nil {
	fmt.Println("err:", err)
	return
}
fmt.Println("rsp.Code:", rsp.Code)
fmt.Println("rsp.Msg:", rsp.Msg)
fmt.Println("rsp.SubCode:", rsp.SubCode)
fmt.Println("rsp.SubMsg:", rsp.SubMsg)
fmt.Println("rsp.Mobile:", rsp.Mobile)

1、支付结果异步通知参数解析；2、验签操作

支付宝支付后的异步通知验签文档：支付结果通知

//解析支付完成后的异步通知参数信息
//此处 c.Request() 为 *http.Request
notifyRsp, err := gopay.ParseAliPayNotifyResult(c.Request())
if err != nil {
    fmt.Println("gopay.ParseAliPayNotifyResult:", err)
    return
}
fmt.Println("notifyRsp:", notifyRsp)

aliPayPublicKey := "MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEA1wn1sU/8Q0rYLlZ6sq3enrPZw2ptp6FecHR2bBFLjJ+sKzepROd0bKddgj+Mr1ffr3Ej78mLdWV8IzLfpXUi945DkrQcOUWLY0MHhYVG2jSs/qzFfpzmtut2Cl2TozYpE84zom9ei06u2AXLMBkU6VpznZl+R4qIgnUfByt3Ix5b3h4Cl6gzXMAB1hJrrrCkq+WvWb3Fy0vmk/DUbJEz8i8mQPff2gsHBE1nMPvHVAMw1GMk9ImB4PxucVek4ZbUzVqxZXphaAgUXFK2FSFU+Q+q1SPvHbUsjtIyL+cLA6H/6ybFF9Ffp27Y14AHPw29+243/SpMisbGcj2KD+evBwIDAQAB"
//验签操作
//    aliPayPublicKey：支付宝公钥
//    notifyRsp：利用 gopay.ParseAliPayNotifyResult() 得到的结构体
//    返回参数ok：是否验证通过
//    返回参数err：错误信息
ok, err := gopay.VerifyAliPayResultSign(aliPayPublicKey, notifyRsp)
if err != nil {
	log.Println("gopay.VerifyAliPayResultSign:", err)
	return
}
fmt.Println("ok:", ok)

支付宝付款结果异步通知,需回复支付宝平台是否成功

• 程序执行完后必须打印输出“success”（不包含引号）。如果商户反馈给支付宝的字符不是success这7个字符，支付宝服务器会不断重发通知，直到超过24小时22分钟。一般情况下，25小时以内完成8次通知（通知的间隔频率一般是：4m,10m,10m,1h,2h,6h,15h）

代码中return写法，由于本人用的 Echo Web框架，有兴趣的可以尝试一下

return c.String(http.StatusOK, "success")

手机网站支付

• 手机网站支付是通过服务端获取支付URL后，然后返回给客户端，请求URL地址即可打开支付页面

文档说明：手机网站支付-请求参数说明

文档说明：手机网站支付接口2.0

privateKey := "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"
//初始化支付宝客户端
//    appId：应用ID
//    privateKey：应用秘钥
//    isProd：是否是正式环境
client := gopay.NewAliPayClient("2016091200494382", privateKey, false)
//配置公共参数
client.SetCharset("utf-8").
	SetSignType("RSA2").
	//SetAppAuthToken("").
	//SetReturnUrl("https://www.gopay.ink").
	SetNotifyUrl("https://www.gopay.ink")
//请求参数
body := make(gopay.BodyMap)
body.Set("subject", "测试支付")
body.Set("out_trade_no", "GYWX201901301040355706100409")
body.Set("quit_url", "https://www.gopay.ink")
body.Set("total_amount", "10.00")
body.Set("product_code", "QUICK_WAP_WAY")
//手机网站支付请求
payUrl, err := client.AliPayTradeWapPay(body)
if err != nil {
	log.Println("err:", err)
	return
}
fmt.Println("payUrl:", payUrl)

APP支付

• APP支付是通过服务端获取支付参数后，然后通过Android/iOS客户端的SDK调用支付功能

文档说明：APP支付-请求参数说明

文档说明：APP支付接口2.0

privateKey := "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"
//初始化支付宝客户端
//    appId：应用ID
//    privateKey：应用秘钥
//    isProd：是否是正式环境
client := gopay.NewAliPayClient("2016091200494382", privateKey, false)
//配置公共参数
client.SetCharset("utf-8").
	SetSignType("RSA2").
	//SetAppAuthToken("").
	//SetReturnUrl("https://www.gopay.ink").
	SetNotifyUrl("https://www.gopay.ink")
//请求参数
body := make(gopay.BodyMap)
body.Set("subject", "测试APP支付")
body.Set("out_trade_no", "GYWX201901301040355706100411")
body.Set("total_amount", "1.00")
//手机APP支付参数请求
payParam, err := client.AliPayTradeAppPay(body)
if err != nil {
	fmt.Println("err:", err)
	return
}
fmt.Println("payParam:", payParam)

电脑网站支付

• 电脑网站支付是通过服务端获取支付URL后，然后返回给客户端，请求URL地址即可打开支付页面

文档说明：电脑网站支付

文档说明：统一收单下单并支付页面接口

privateKey := "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"
//初始化支付宝客户端
//    appId：应用ID
//    privateKey：应用秘钥
//    isProd：是否是正式环境
client := gopay.NewAliPayClient("2016091200494382", privateKey, false)
//配置公共参数
client.SetCharset("utf-8").
	SetSignType("RSA2").
	//SetAppAuthToken("").
	//SetReturnUrl("https://www.gopay.ink").
	SetNotifyUrl("https://www.gopay.ink")
//请求参数
body := make(gopay.BodyMap)
body.Set("subject", "网站测试支付")
body.Set("out_trade_no", "GYWX201901301040355706100418")
body.Set("total_amount", "88.88")
body.Set("product_code", "FAST_INSTANT_TRADE_PAY")

//电脑网站支付请求
payUrl, err := client.AliPayTradePagePay(body)
if err != nil {
	fmt.Println("err:", err)
	return
}
fmt.Println("payUrl:", payUrl)

当面付-条码支付

• 商家使用扫码枪等条码识别设备扫描用户支付宝钱包上的条码/二维码，完成收款。

文档说明：当面付-条码支付

文档说明：统一收单交易支付接口

privateKey := "MIIEogIBAAKCAQEAy+CRzKw4krA2RzCDTqg5KJg92XkOY0RN3pW4sYInPqnGtHV7YDHu5nMuxY6un+dLfo91OFOEg+RI+WTOPoM4xJtsOaJwQ1lpjycoeLq1OyetGW5Q8wO+iLWJASaMQM/t/aXR/JHaguycJyqlHSlxANvKKs/tOHx9AhW3LqumaCwz71CDF/+70scYuZG/7wxSjmrbRBswxd1Sz9KHdcdjqT8pmieyPqnM24EKBexHDmQ0ySXvLJJy6eu1dJsPIz+ivX6HEfDXmSmJ71AZVqZyCI1MhK813R5E7XCv5NOtskTe3y8uiIhgGpZSdB77DOyPLcmVayzFVLAQ3AOBDmsY6wIDAQABAoIBAHjsNq31zAw9FcR9orQJlPVd7vlJEt6Pybvmg8hNESfanO+16rpwg2kOEkS8zxgqoJ1tSzJgXu23fgzl3Go5fHcoVDWPAhUAOFre9+M7onh2nPXDd6Hbq6v8OEmFapSaf2b9biHnBHq5Chk08v/r74l501w3PVVOiPqulJrK1oVb+0/YmCvVFpGatBcNaefKUEcA+vekWPL7Yl46k6XeUvRfTwomCD6jpYLUhsAKqZiQJhMGoaLglZvkokQMF/4G78K7FbbVLMM1+JDh8zJ/DDVdY2vHREUcCGhl4mCVQtkzIbpxG++vFg7/g/fDI+PquG22hFILTDdtt2g2fV/4wmkCgYEA6goRQYSiM03y8Tt/M4u1Mm7OWYCksqAsU7rzQllHekIN3WjD41Xrjv6uklsX3sTG1syo7Jr9PGE1xQgjDEIyO8h/3lDQyLyycYnyUPGNNMX8ZjmGwcM51DQ/QfIrY/CXjnnW+MVpmNclAva3L33KXCWjw20VsROV1EA8LCL94BUCgYEA3wH4ANpzo7NqXf+2WlPPMuyRrF0QPIRGlFBNtaKFy0mvoclkREPmK7+N4NIGtMf5JNODS5HkFRgmU4YNdupA2I8lIYpD+TsIobZxGUKUkYzRZYZ1m1ttL69YYvCVz9Xosw/VoQ+RrW0scS5yUKqFMIUOV2R/Imi//c5TdKx6VP8CgYAnJ1ADugC4vI2sNdvt7618pnT3HEJxb8J6r4gKzYzbszlGlURQQAuMfKcP7RVtO1ZYkRyhmLxM4aZxNA9I+boVrlFWDAchzg+8VuunBwIslgLHx0/4EoUWLzd1/OGtco6oU1HXhI9J9pRGjqfO1iiIifN/ujwqx7AFNknayG/YkQKBgD6yNgA/ak12rovYzXKdp14Axn+39k2dPp6J6R8MnyLlB3yruwW6NSbNhtzTD1GZ+wCQepQvYvlPPc8zm+t3tl1r+Rtx3ORf5XBZc3iPkGdPOLubTssrrAnA+U9vph61W+OjqwLJ9sHUNK9pSHhHSIS4k6ycM2YAHyIC9NGTgB0PAoGAJjwd1DgMaQldtWnuXjvohPOo8cQudxXYcs6zVRbx6vtjKe2v7e+eK1SSVrR5qFV9AqxDfGwq8THenRa0LC3vNNplqostuehLhkWCKE7Y75vXMR7N6KU1kdoVWgN4BhXSwuRxmHMQfSY7q3HG3rDGz7mzXo1FVMr/uE4iDGm0IXY="
//初始化支付宝客户端
//    appId：应用ID
//    privateKey：应用秘钥
//    isProd：是否是正式环境
client := gopay.NewAliPayClient("2016091200494382", privateKey, false)
//配置公共参数
client.SetCharset("utf-8").
	SetSignType("RSA2").
	//SetAppAuthToken("").
	//SetReturnUrl("https://www.gopay.ink").
	SetNotifyUrl("https://www.gopay.ink")
//请求参数
body := make(gopay.BodyMap)
body.Set("subject", "条码支付")
body.Set("scene", "bar_code")
body.Set("auth_code", "285860185283886370")
body.Set("out_trade_no", "GYWX201901301040355706100456")
body.Set("total_amount", "10.00")
body.Set("timeout_express", "2m")

//当面付-条码支付
aliRsp, err := client.AliPayTradePay(body)
if err != nil {
	fmt.Println("err:", err)
	return
}
fmt.Println("aliRsp:", *aliRsp)

支付宝小程序支付

• 支付宝小程序支付时 buyer_id 为必传参数，需要提前获取，获取方法如下两种，下面示例代码使用的第二种
  • gopay.AliPaySystemOauthToken()
  • client.AliPaySystemOauthToken()

获取用户user_id文档：换取授权访问令牌

创建支付订单文档：统一收单交易创建接口

支付宝小程序支付文档：小程序唤起支付

privateKey := "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"
//初始化支付宝客户端
//    appId：应用ID
//    privateKey：应用秘钥
//    isProd：是否是正式环境
client := gopay.NewAliPayClient("2016091200494382", privateKey, false)
//配置公共参数
client.SetCharset("utf-8").
    SetSignType("RSA2").
    SetNotifyUrl("https://www.gopay.ink")
//请求参数
body := make(gopay.BodyMap)
body.Set("grant_type", "authorization_code")
body.Set("code", "46523714c2654d0583d91aaa862aOF69")

//创建订单
aliRsp, err := client.AliPaySystemOauthToken(body)
if err != nil {
    fmt.Println("err:", err)
    return
}
fmt.Println("aliRsp:", *aliRsp)

//支付宝小程序创建订单
body2 := make(gopay.BodyMap)
body2.Set("subject", "创建订单")
body2.Set("buyer_id", aliRsp.AliPaySystemOauthTokenResponse.UserId)
body2.Set("out_trade_no", "GZ201901301040355708")
body2.Set("total_amount", "0.01")

rsp, err := client.AliPayTradeCreate(body2)
if err != nil {
    fmt.Println("err:", err)
    return
}
fmt.Println("rsp:", *rsp)
//此参数为支付宝小程序支付所需要的参数
fmt.Println("TradeNo:", rsp.AliPayTradeCreateResponse.TradeNo)

统一收单交易退款接口

• 交易订单退款接口，具体条件请看官方文档介绍

文档说明：统一收单交易退款接口

privateKey := "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"
//初始化支付宝客户端
//    appId：应用ID
//    privateKey：应用秘钥
//    isProd：是否是正式环境
client := gopay.NewAliPayClient("2016091200494382", privateKey, false)
//配置公共参数
client.SetCharset("utf-8").
	SetSignType("RSA2")
//请求参数
body := make(gopay.BodyMap)
body.Set("out_trade_no", "GZ201907261437329516")
body.Set("refund_amount", "100.00")
body.Set("refund_reason", "测试支付退款")
//发起退款请求
aliRsp, err := client.AliPayTradeRefund(body)
if err != nil {
	fmt.Println("err:", err)
	return
}
fmt.Println("aliRsp:", *aliRsp)

License

Copyright 2019 Jerry

Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
You may obtain a copy of the License at

    http://www.apache.org/licenses/LICENSE-2.0

Unless required by applicable law or agreed to in writing, software
distributed under the License is distributed on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
See the License for the specific language governing permissions and
limitations under the License.