//下载汇率文件接口
func (ot *OverseaTrade) MustGetExchangeRateList() (output []ExchangeRate) {
query := map[string]string{
"service": "forex_rate_file",
"partner": ot.PartnerId,
}
ot.md5Sign(query)
content := kmgHttp.MustUrlGetContent(kmgHttp.MustSetParameterMapToUrl("https://mapi.alipay.com/gateway.do", query))
lineList := strings.Split(string(content), "\n")
output = make([]ExchangeRate, 0, len(lineList))
for _, line := range lineList {
line := strings.TrimSpace(line)
if line == "" {
continue
}
part := strings.Split(line, "|")
if len(part) < 4 {
panic(fmt.Errorf("[MustGetExchangeRateList] format error"))
}
t, err := time.Parse("20060102150405", part[0]+part[1]) //考虑别处基本不会使用,就直接写在这个地方了.
if err != nil {
panic(err)
}
rate, err := kmgStrconv.ParseFloat64(part[3])
if err != nil {
panic(err)
}
output = append(output, ExchangeRate{
Time: t,
Currency: part[2],
Rate: rate,
})
}
return output
}
func MustGetExchangeRate(from string, to string) float64 {
if !kmgStrings.IsAllAphphabet(from) {
panic(fmt.Errorf("[MustGetExchangeRate] fromName [%s] should like USD", from))
}
if !kmgStrings.IsAllAphphabet(to) {
panic(fmt.Errorf("[MustGetExchangeRate] toName [%s] should like USD", to))
}
if from == to {
panic(fmt.Errorf("[MustGetExchangeRate] fromName [%s] =toName [%s] "))
}
out := kmgHttp.MustUrlGetContent(kmgHttp.MustSetParameterMapToUrl("https://query.yahooapis.com/v1/public/yql", map[string]string{
"q": fmt.Sprintf(`select * from yahoo.finance.xchange where pair="%s%s"`, from, to),
"format": "json",
"env": "store://datatables.org/alltableswithkeys",
"callback": "",
}))
//out should look like {"query":{"count":1,"created":"2015-06-01T02:37:44Z","lang":"en","results":{"rate":{"id":"JPYCNY","Name":"JPY/CNY","Rate":"0.0501","Date":"6/1/2015","Time":"3:37am","Ask":"0.0501","Bid":"0.0501"}}}}
resp := yqlRateResponse{}
kmgJson.MustUnmarshal(out, &resp)
if resp.Query.Results.Rate.Rate == "N/A" {
panic(fmt.Errorf("[MustGetExchangeRate] Currency [%s][%s] not exist", from, to)) //有一种货币不存在.
}
rate, err := kmgStrconv.ParseFloat64(resp.Query.Results.Rate.Rate)
if err != nil {
panic(err)
}
return rate
}
// 通知验证接口
// 和支付宝手机接口一模一样.
func (ot *OverseaTrade) VerifyNotify(NotifyId string) (err error) {
u := kmgHttp.MustSetParameterMapToUrl("https://mapi.alipay.com/gateway.do", map[string]string{
"service": "notify_verify",
"partner": ot.PartnerId,
"notify_id": NotifyId,
})
content, err := kmgHttp.UrlGetContent(u)
if err != nil {
return err
}
if !bytes.Equal(content, []byte(`true`)) {
return fmt.Errorf("notify_id verify fail")
}
return nil
}
//用户发起支付,请传入Request,然后redirect到这个函数返回的url里面去.
func (ot *OverseaTrade) Pay(req *OverseaTradePayRequest) (url string) {
query := map[string]string{
"_input_charset": "utf-8",
"service": "create_forex_trade",
"partner": ot.PartnerId,
"notify_url": ot.SelfSchemeAndHost + "/?n=github.com.bronze1man.kmg.third.kmgAlipay.OverseaTrade.NotifyAction",
"return_url": ot.SelfSchemeAndHost + "/?n=github.com.bronze1man.kmg.third.kmgAlipay.OverseaTrade.ReturnPage",
"subject": req.Subject,
"body": req.Body,
"out_trade_no": req.OutTradeNo,
"currency": req.Currency,
"supplier": req.Supplier,
"timeout_rule": req.TimeoutRule,
"specified_pay_channel": req.SpecifiedPayChannel,
"seller_id": req.SellerId,
"seller_name": req.SellerName,
"seller_industry": req.SellerIndustry,
}
if req.NotifyUrl != "" {
query["notify_url"] = req.NotifyUrl
}
if req.ReturnUrl != "" {
query["return_url"] = req.ReturnUrl
}
if req.TotalFee != 0 {
if req.Currency == "JPY" {
//日元精度是整数,传入小数点会报错,这个文档上没有写,但是经过实验发现是这个样子的.
query["total_fee"] = kmgStrconv.FormatFloatPrec0(req.TotalFee)
} else {
query["total_fee"] = kmgStrconv.FormatFloatPrec2(req.TotalFee)
}
}
if req.RmbFee != 0 {
query["rmb_fee"] = kmgStrconv.FormatFloatPrec2(req.RmbFee)
}
ot.md5Sign(query)
kmgLog.Log("Alipay", "Oversea Pay", query)
//已经手动验证url里面的参数顺序无关紧要.
return kmgHttp.MustSetParameterMapToUrl("https://mapi.alipay.com/gateway.do", query)
}
// 单条交易查询接口
func (ot *OverseaTrade) SingleTransactionQuery(outTradeId string) (tran *OverseaTradeTransaction, err error) {
query := map[string]string{
"service": "single_trade_query",
"partner": ot.PartnerId,
"_input_charset": "utf-8",
"out_trade_no": outTradeId,
}
ot.md5Sign(query)
content := kmgHttp.MustUrlGetContent(kmgHttp.MustSetParameterMapToUrl("https://mapi.alipay.com/gateway.do", query))
response := overseaTradeTransactionQueryResponse{}
err = xml.Unmarshal(content, &response)
if err != nil {
return nil, err
}
if response.IsSuccess != "T" {
return nil, fmt.Errorf("[支付宝单条交易查询接口错误] [%s]", response.Error)
}
return &OverseaTradeTransaction{
TradeNo: response.TradeNo,
OutTradeNo: response.OutTradeNo,
Subject: response.Subject,
TradeStatus: response.TradeStatus,
}, nil
}