elf-shop/utils/payment/pay_api.go

package payment

import (
	"encoding/json"
	"fmt"
	"gold-shop/errors"
	"gold-shop/global"
	"gold-shop/utils"
	"io"
	"net/http"
	"net/url"
	"strconv"
	"strings"
)

var PayApi payApi = payApi{}

type payApi struct {
}

func (api *payApi) WxPay(param WxPayParam) (*WxPayResult, error) {
	payment := global.Config.Payment
	data := url.Values{}
	data.Set("service", "comm.js.pay")
	data.Set("apikey", payment.ApiKey)
	data.Set("money", fmt.Sprintf("%.2f", param.Amount))
	data.Set("sub_appid", payment.WxPay.SubAppId)
	data.Set("sub_openid", param.OpenId)
	data.Set("nonce_str", utils.GenerateRandomString(32))
	data.Set("mch_orderid", param.OrderId)
	data.Set("notify_url", param.NotifyUrl)
	data.Set("remarks", param.Remark)
	sign := api.sign(data, payment.SignKey)
	data.Set("sign", sign)
	fmt.Println(data.Encode())
	res, err := api.post(payment.BaseUrl+"/payapi/mini/wxpay", data)
	if err != nil {
		return nil, err
	}
	result := WxPayResult{}
	err = json.Unmarshal(res, &result)
	if err != nil {
		return nil, errors.NewBusinessError("结果解析错误")
	}
	return &result, nil
}

func (api *payApi) QueryOrder(param QueryOrderParam) (*QueryOrderResult, error) {
	payment := global.Config.Payment
	data := url.Values{}
	data.Set("service", "pay.comm.query_order")
	data.Set("apikey", payment.ApiKey)
	data.Set("orderid", param.OrderID)
	data.Set("mch_orderid", param.MchOrderID)
	data.Set("nonce_str", utils.GenerateRandomString(32))
	data.Set("order_time", strconv.Itoa(int(param.OrderTime)))
	data.Set("dis_name", param.DisName)
	sign := api.sign(data, payment.SignKey)
	data.Set("sign", sign)
	fmt.Println(data.Encode())
	res, err := api.post(payment.BaseUrl+"/payapi/pay/query_order", data)
	if err != nil {
		return nil, err
	}
	result := QueryOrderResult{}
	err = json.Unmarshal(res, &result)
	if err != nil {
		return nil, errors.NewBusinessError("结果解析错误")
	}
	return &result, nil
}

func (api *payApi) TransferPay(param TransferPayParam) (*TransferPayResult, error) {
	payment := global.Config.Payment
	data := url.Values{}
	data.Set("service", "pay.heli.large_query")
	data.Set("apikey", payment.ApiKey)
	data.Set("order_money", fmt.Sprintf("%.2f", param.Amount))
	data.Set("nonce_str", utils.GenerateRandomString(32))
	data.Set("out_orderid", param.OrderId)
	//data.Set("notify_url", param.NotifyUrl)
	//data.Set("remark", param.Remark)
	sign := api.sign(data, payment.SignKey)
	data.Set("sign", sign)
	fmt.Println(data.Encode())
	fmt.Println("url: " + payment.BaseUrl + "/payapi/pay/large_create")
	res, err := api.post(payment.BaseUrl+"/payapi/pay/large_create", data)
	if err != nil {
		return nil, err
	}
	result := TransferPayResult{}
	err = json.Unmarshal(res, &result)
	if err != nil {
		return nil, errors.NewBusinessError("结果解析错误")
	}
	return &result, nil
}

func (payApi) sign(params url.Values, signKey string) string {
	fmt.Println(params.Encode() + "&signkey=" + signKey)
	return utils.Md5(params.Encode() + "&signkey=" + signKey)
}

func (payApi) post(url string, data url.Values) ([]byte, error) {
	client := &http.Client{}
	body := strings.NewReader(data.Encode())
	request, err := http.NewRequest("POST", url, body)
	request.Header.Set("content-type", "application/x-www-form-urlencoded")

	if err != nil {
		return nil, errors.NewBusinessError("请求错误")
	}
	response, err := client.Do(request)

	defer func(Body io.ReadCloser) {
		err := Body.Close()
		if err != nil {

		}
	}(response.Body)

	bodyBytes, err := io.ReadAll(response.Body)

	fmt.Println(string(bodyBytes))

	if err != nil {
		return nil, errors.NewBusinessError("返回内容错误")
	}

	return bodyBytes, nil
}