简单易用的APIv3版微信支付SDK

  • Z时代
  • 2024-01-10
  • 分类：综合

介绍

微信支付SDK，基于全新的微信支付APIv3来实现。支持小程序支付、JSAPI支付、Native支付、APP支付、H5支付，支持直连商户模式和服务商模式。

安装说明

go get gitee.com/haming123/wxpay4go

快速上手

  1. 商户对象初始化

    package main
    import (
     "log"
     "wxpay"
    )
    var MchCtx *wxpay.MchWxApp = nil
    func MchCtxInit() error {
     pem_cert, err := wxpay.LoadCertificateWithPath("/path/to/merchant/apiclient_cert.pem")
     if err != nil {
         return err
     }
     pem_key, err := wxpay.LoadPrivateKeyWithPath("/path/to/merchant/apiclient_key.pem")
     if err != nil {
         return err
     }
     MchCtx = wxpay.NewMchWxApp("mchID_string", "appID_string", "mchAPIv3Key_string", pem_cert, pem_key)
     return nil
    }
    func main() {
     //......
     err := MchCtxInit()
     if err != nil {
         log.Print(err)
         return
     }
     //......
    }

  2. 支付下单

    func HandlerPayCreateDemo(w http.ResponseWriter, r *http.Request) {
     //................(其他业务逻辑)
     var data_req wxpay.WxAppOrderData
     data_req.Description = "业务描述"
     data_req.Out_trade_no = "业务订单号"
     data_req.Notify_url = "接收支付通知的URL地址"
     data_req.Sub_mchid = "子商户号"
     data_req.Sub_appid = "小程序的APPID"
     data_req.Payer.Sub_openid = "用户在小程序中的OPENID"
     data_req.Amount.Total = 20
     param, err := MchCtx.CreateOrder(data_req)
     if err!= nil {
         log.Print(err)
         return
     }
     //................(其他业务逻辑)
    }

  3. 支付订单查询

    func HandlerPayQueryDemo(w http.ResponseWriter, r *http.Request) {
     //................(其他业务逻辑)
     out_trade_no := "业务订单号"
     sub_mchid := "子商户号"
     result, err := MchCtx.QueryByOutTradeNo(out_trade_no, sub_mchid)
     if err!= nil {
         log.Print(err)
         return
     }
     //................(其他业务逻辑)
    }

  4. 支付回调处理

    func HandlerPayCallBack(w http.ResponseWriter, r *http.Request) {
     //解析回调数据
     req_info, err := MchCtx.ParsePayCallBack(r)
     if err != nil {
         wxpay.HttpCallBackReturn(w, 500,"FAIL", "FAIL")
         return
     }
     //................(其他业务逻辑)
     //回调返回
     wxpay.HttpCallBackReturn(w, 200, "SUCCESS", "SUCCESS")
    }

  5. 退款申请

    func HandlerRefundDemo(w http.ResponseWriter, r *http.Request) {
     //................(其他业务逻辑)
     var data wxpay.RefundCreateReq
     data.Sub_mchid = "子商户号"
     data.Out_trade_no = "业务订单号"
     data.Out_refund_no = "商户的退款单号"
     data.Amount.Total = 20
     data.Amount.Refund = 20
     data.Notify_url = "退款结果回调的URL"
     result, err := MchCtx.RefundOrder(data)
     if err!= nil {
         log.Print(err)
     }
     //................(其他业务逻辑)
    }

  6. 退款回调处理

    func HandlerRefundCallBack(w http.ResponseWriter, r *http.Request) {
     //解析回调数据
     req_info, err := MchCtx.ParseRefundCallBack(r)
     if err != nil {
         wxpay.HttpCallBackReturn(w, 500,"FAIL", "FAIL")
         return
     }
     //................(其他业务逻辑)
     //回调返回
     wxpay.HttpCallBackReturn(w, 200, "SUCCESS", "SUCCESS")
    }

其他支付产品的使用

  1. 直连商户商户对象初始化

    //小程序
    MchCtx = wxpay.NewMchWxApp("mchID_string", "appID_string", "mchAPIv3Key_string", pem_cert, pem_key)
    //JsAPi
    MchCtx = wxpay.NewMchJsApi("mchID_string", "appID_string", "mchAPIv3Key_string", pem_cert, pem_key)
    //H5
    MchCtx = wxpay.NewMchH5("mchID_string", "appID_string", "mchAPIv3Key_string", pem_cert, pem_key)
    //Native
    MchCtx = wxpay.NewMchNative("mchID_string", "appID_string", "mchAPIv3Key_string", pem_cert, pem_key)
    //App
    MchCtx = wxpay.NewMchApp("mchID_string", "appID_string", "mchAPIv3Key_string", pem_cert, pem_key)

  2. 服务商商户对象初始化

    //小程序
    MchCtx = wxpay.NewMidWxApp("mchID_string", "appID_string", "mchAPIv3Key_string", pem_cert, pem_key)
    //JsAPi
    MchCtx = wxpay.NewMidJsApi("mchID_string", "appID_string", "mchAPIv3Key_string", pem_cert, pem_key)
    //H5
    MchCtx = wxpay.NewMidH5("mchID_string", "appID_string", "mchAPIv3Key_string", pem_cert, pem_key)
    //Native
    MchCtx = wxpay.NewMidNative("mchID_string", "appID_string", "mchAPIv3Key_string", pem_cert, pem_key)
    //App
    MchCtx = wxpay.NewMidApp("mchID_string", "appID_string", "mchAPIv3Key_string", pem_cert, pem_key)

以上是 简单易用的APIv3版微信支付SDK 的全部内容， 来源链接： utcz.com/z/267840.html

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