feat: add wechat pay

backend/providers/pay/config.go

@@ -0,0 +1,30 @@
+package pay
+
+import (
+	"git.ipao.vip/rogeecn/atom/container"
+	"git.ipao.vip/rogeecn/atom/utils/opt"
+)
+
+const DefaultPrefix = "Pay"
+
+func DefaultProvider() container.ProviderContainer {
+	return container.ProviderContainer{
+		Provider: Provide,
+		Options: []opt.Option{
+			opt.Prefix(DefaultPrefix),
+		},
+	}
+}
+
+type Config struct {
+	WeChat *wechatPay
+}
+
+type wechatPay struct {
+	AppId      string
+	MechID     string
+	SubMechID  string
+	SerialNo   string
+	ApiV3Key   string
+	PrivateKey string
+}

backend/providers/pay/provider.go

@@ -0,0 +1,48 @@
+package pay
+
+import (
+	"backend/providers/app"
+
+	"git.ipao.vip/rogeecn/atom/container"
+	"git.ipao.vip/rogeecn/atom/utils/opt"
+	"github.com/go-pay/gopay"
+	"github.com/go-pay/gopay/wechat/v3"
+)
+
+func Provide(opts ...opt.Option) error {
+	o := opt.New(opts...)
+	var config Config
+	if err := o.UnmarshalConfig(&config); err != nil {
+		return err
+	}
+	return container.Container.Provide(func(app *app.Config) (*Client, error) {
+		wechatPay, err := wechat.NewClientV3(
+			config.WeChat.MechID,
+			config.WeChat.SerialNo,
+			config.WeChat.ApiV3Key,
+			config.WeChat.PrivateKey,
+		)
+		if err != nil {
+			return nil, err
+		}
+
+		if err := wechatPay.AutoVerifySign(); err != nil {
+			return nil, err
+		}
+
+		if app.IsDevMode() {
+			wechatPay.DebugSwitch = gopay.DebugOn
+		}
+
+		return &Client{
+			conf:   &config,
+			WeChat: wechatPay,
+		}, nil
+	}, o.DiOptions()...)
+}
+
+type Client struct {
+	conf *Config
+
+	WeChat *wechat.ClientV3
+}

backend/providers/pay/wechat.go

@@ -0,0 +1,49 @@
+package pay
+
+import (
+	"context"
+	"errors"
+	"time"
+
+	"github.com/go-pay/gopay"
+	"github.com/go-pay/gopay/wechat/v3"
+)
+
+// get js pay prepay id
+func (client *Client) WeChat_JSApiPayRequest(ctx context.Context, payerOpenID, orderNo, title string, price, amount int64, notifyUrl string) (*wechat.JSAPIPayParams, error) {
+	expire := time.Now().Add(10 * time.Minute).Format(time.RFC3339)
+	// 初始化 BodyMap
+	bm := make(gopay.BodyMap)
+
+	bm.
+		Set("sp_appid", client.conf.WeChat.AppId).
+		Set("sp_mchid", client.conf.WeChat.MechID).
+		Set("sub_mchid", client.conf.WeChat.SubMechID).
+		Set("description", title).
+		Set("out_trade_no", orderNo).
+		Set("time_expire", expire).
+		Set("notify_url", notifyUrl).
+		SetBodyMap("amount", func(bm gopay.BodyMap) {
+			if amount == 0 {
+				amount = 1
+			}
+
+			bm.
+				Set("total", amount).
+				Set("currency", "CNY")
+		}).
+		SetBodyMap("payer", func(bm gopay.BodyMap) {
+			bm.Set("sp_openid", payerOpenID)
+		})
+
+	resp, err := client.WeChat.V3TransactionJsapi(ctx, bm)
+	if err != nil {
+		return nil, err
+	}
+
+	if resp.Code != 0 {
+		return nil, errors.New("获取预支付ID失败")
+	}
+
+	return client.WeChat.PaySignOfJSAPI(client.conf.WeChat.AppId, resp.Response.PrepayId)
+}