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base_api.go
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base_api.go
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package wechat
import (
"context"
"crypto/tls"
"encoding/xml"
"errors"
"fmt"
"github.com/go-pay/gopay"
"github.com/go-pay/gopay/pkg/util"
)
// 统一下单
// 文档地址:https://pay.weixin.qq.com/wiki/doc/api/wxpay_v2/open/chapter3_1.shtml
func (w *Client) UnifiedOrder(ctx context.Context, bm gopay.BodyMap) (wxRsp *UnifiedOrderResponse, err error) {
err = bm.CheckEmptyError("nonce_str", "body", "out_trade_no", "total_fee", "spbill_create_ip", "notify_url", "trade_type")
if err != nil {
return nil, err
}
var bs []byte
if w.IsProd {
bs, err = w.doProdPost(ctx, bm, unifiedOrder, nil)
} else {
bm.Set("total_fee", 101)
bs, err = w.doSanBoxPost(ctx, bm, sandboxUnifiedOrder)
}
if err != nil {
return nil, err
}
wxRsp = new(UnifiedOrderResponse)
if err = xml.Unmarshal(bs, wxRsp); err != nil {
return nil, fmt.Errorf("[%w]: %v, bytes: %s", gopay.UnmarshalErr, err, string(bs))
}
return wxRsp, nil
}
// 提交付款码支付
// 文档地址:https://pay.weixin.qq.com/wiki/doc/api/wxpay_v2/open/chapter4_1.shtml
func (w *Client) Micropay(ctx context.Context, bm gopay.BodyMap) (wxRsp *MicropayResponse, err error) {
err = bm.CheckEmptyError("nonce_str", "body", "out_trade_no", "total_fee", "spbill_create_ip", "auth_code")
if err != nil {
return nil, err
}
var bs []byte
if w.IsProd {
bs, err = w.doProdPost(ctx, bm, microPay, nil)
} else {
bm.Set("total_fee", 1)
bs, err = w.doSanBoxPost(ctx, bm, sandboxMicroPay)
}
if err != nil {
return nil, err
}
wxRsp = new(MicropayResponse)
if err = xml.Unmarshal(bs, wxRsp); err != nil {
return nil, fmt.Errorf("[%w]: %v, bytes: %s", gopay.UnmarshalErr, err, string(bs))
}
return wxRsp, nil
}
// 查询订单
// 文档地址:https://pay.weixin.qq.com/wiki/doc/api/wxpay_v2/open/chapter3_2.shtml
func (w *Client) QueryOrder(ctx context.Context, bm gopay.BodyMap) (wxRsp *QueryOrderResponse, resBm gopay.BodyMap, err error) {
err = bm.CheckEmptyError("nonce_str")
if err != nil {
return nil, nil, err
}
if bm.GetString("out_trade_no") == util.NULL && bm.GetString("transaction_id") == util.NULL {
return nil, nil, errors.New("out_trade_no and transaction_id are not allowed to be null at the same time")
}
var bs []byte
if w.IsProd {
bs, err = w.doProdPost(ctx, bm, orderQuery, nil)
} else {
bs, err = w.doSanBoxPost(ctx, bm, sandboxOrderQuery)
}
if err != nil {
return nil, nil, err
}
wxRsp = new(QueryOrderResponse)
if err = xml.Unmarshal(bs, wxRsp); err != nil {
return nil, nil, fmt.Errorf("xml.UnmarshalStruct(%s):%w", string(bs), err)
}
resBm = make(gopay.BodyMap)
if err = xml.Unmarshal(bs, &resBm); err != nil {
return nil, nil, fmt.Errorf("xml.UnmarshalBodyMap(%s):%w", string(bs), err)
}
return wxRsp, resBm, nil
}
// 关闭订单
// 文档地址:https://pay.weixin.qq.com/wiki/doc/api/wxpay_v2/open/chapter3_3.shtml
func (w *Client) CloseOrder(ctx context.Context, bm gopay.BodyMap) (wxRsp *CloseOrderResponse, err error) {
err = bm.CheckEmptyError("nonce_str", "out_trade_no")
if err != nil {
return nil, err
}
var bs []byte
if w.IsProd {
bs, err = w.doProdPost(ctx, bm, closeOrder, nil)
} else {
bs, err = w.doSanBoxPost(ctx, bm, sandboxCloseOrder)
}
if err != nil {
return nil, err
}
wxRsp = new(CloseOrderResponse)
if err = xml.Unmarshal(bs, wxRsp); err != nil {
return nil, fmt.Errorf("[%w]: %v, bytes: %s", gopay.UnmarshalErr, err, string(bs))
}
return wxRsp, nil
}
// 申请退款
// 注意:请在初始化client时,调用 client 添加证书的相关方法添加证书
// 文档地址:https://pay.weixin.qq.com/wiki/doc/api/wxpay_v2/open/chapter3_4.shtml
func (w *Client) Refund(ctx context.Context, bm gopay.BodyMap) (wxRsp *RefundResponse, resBm gopay.BodyMap, err error) {
err = bm.CheckEmptyError("nonce_str", "out_refund_no", "total_fee", "refund_fee")
if err != nil {
return nil, nil, err
}
if bm.GetString("out_trade_no") == util.NULL && bm.GetString("transaction_id") == util.NULL {
return nil, nil, errors.New("out_trade_no and transaction_id are not allowed to be null at the same time")
}
var (
bs []byte
tlsConfig *tls.Config
)
if w.IsProd {
if tlsConfig, err = w.addCertConfig(nil, nil, nil); err != nil {
return nil, nil, err
}
bs, err = w.doProdPost(ctx, bm, refund, tlsConfig)
} else {
bs, err = w.doSanBoxPost(ctx, bm, sandboxRefund)
}
if err != nil {
return nil, nil, err
}
wxRsp = new(RefundResponse)
if err = xml.Unmarshal(bs, wxRsp); err != nil {
return nil, nil, fmt.Errorf("xml.UnmarshalStruct(%s):%w", string(bs), err)
}
resBm = make(gopay.BodyMap)
if err = xml.Unmarshal(bs, &resBm); err != nil {
return nil, nil, fmt.Errorf("xml.UnmarshalBodyMap(%s):%w", string(bs), err)
}
return wxRsp, resBm, nil
}
// 查询退款
// 文档地址:https://pay.weixin.qq.com/wiki/doc/api/wxpay_v2/open/chapter3_5.shtml
func (w *Client) QueryRefund(ctx context.Context, bm gopay.BodyMap) (wxRsp *QueryRefundResponse, resBm gopay.BodyMap, err error) {
err = bm.CheckEmptyError("nonce_str")
if err != nil {
return nil, nil, err
}
if bm.GetString("refund_id") == util.NULL && bm.GetString("out_refund_no") == util.NULL && bm.GetString("transaction_id") == util.NULL && bm.GetString("out_trade_no") == util.NULL {
return nil, nil, errors.New("refund_id, out_refund_no, out_trade_no, transaction_id are not allowed to be null at the same time")
}
var bs []byte
if w.IsProd {
bs, err = w.doProdPost(ctx, bm, refundQuery, nil)
} else {
bs, err = w.doSanBoxPost(ctx, bm, sandboxRefundQuery)
}
if err != nil {
return nil, nil, err
}
wxRsp = new(QueryRefundResponse)
if err = xml.Unmarshal(bs, wxRsp); err != nil {
return nil, nil, fmt.Errorf("xml.UnmarshalStruct(%s):%w", string(bs), err)
}
resBm = make(gopay.BodyMap)
if err = xml.Unmarshal(bs, &resBm); err != nil {
return nil, nil, fmt.Errorf("xml.UnmarshalBodyMap(%s):%w", string(bs), err)
}
return wxRsp, resBm, nil
}
// 撤销订单
// 注意:请在初始化client时,调用 client 添加证书的相关方法添加证书
// 文档地址:https://pay.weixin.qq.com/wiki/doc/api/wxpay_v2/open/chapter4_3.shtml
func (w *Client) Reverse(ctx context.Context, bm gopay.BodyMap) (wxRsp *ReverseResponse, err error) {
err = bm.CheckEmptyError("nonce_str", "out_trade_no")
if err != nil {
return nil, err
}
var (
bs []byte
tlsConfig *tls.Config
)
if w.IsProd {
if tlsConfig, err = w.addCertConfig(nil, nil, nil); err != nil {
return nil, err
}
bs, err = w.doProdPost(ctx, bm, reverse, tlsConfig)
} else {
bs, err = w.doSanBoxPost(ctx, bm, sandboxReverse)
}
if err != nil {
return nil, err
}
wxRsp = new(ReverseResponse)
if err = xml.Unmarshal(bs, wxRsp); err != nil {
return nil, fmt.Errorf("[%w]: %v, bytes: %s", gopay.UnmarshalErr, err, string(bs))
}
return wxRsp, nil
}