wangjia
6da6964451
- Go/Gin/GORM + 纯 Go SQLite（无 cgo） - Channel 多渠道接口：支付宝当面付(precreate)/电脑网站支付(page.pay) 已实现，微信占位 - 多商户 merchants 表，回调验签+金额核对+幂等+查单兜底 - 收款页/结果页/二维码端点；docs/ 设计文档与部署 Runbook - 密钥走环境变量/Bitwarden，不入库 Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
100 lines
3.0 KiB
Go
100 lines
3.0 KiB
Go
package handler
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import (
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"errors"
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"net/http"
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"github.com/gin-gonic/gin"
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"github.com/wangjia/pay/internal/service"
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"github.com/wangjia/pay/internal/util"
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)
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type OrderHandler struct {
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svc *service.OrderService
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}
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func NewOrderHandler(svc *service.OrderService) *OrderHandler {
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return &OrderHandler{svc: svc}
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}
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type createOrderRequest struct {
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ProductID uint64 `json:"product_id" binding:"required"`
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}
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// Create POST /api/v1/orders —— 下单，返回支付宝收银台跳转 URL。
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func (h *OrderHandler) Create(c *gin.Context) {
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var req createOrderRequest
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if err := c.ShouldBindJSON(&req); err != nil {
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util.RespondError(c, http.StatusBadRequest, "bad_request", "参数错误："+err.Error())
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return
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}
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payURL, order, err := h.svc.Create(c.Request.Context(), req.ProductID, c.ClientIP())
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if err != nil {
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if errors.Is(err, service.ErrProductNotFound) {
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util.RespondError(c, http.StatusNotFound, "product_not_found", err.Error())
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return
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}
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util.RespondError(c, http.StatusInternalServerError, "create_failed", err.Error())
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return
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}
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util.RespondSuccess(c, gin.H{
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"pay_url": payURL,
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"out_trade_no": order.OutTradeNo,
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"amount": order.Amount,
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"subject": order.Subject,
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})
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}
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// CreateQR POST /api/v1/orders/qr —— 扫码下单，返回二维码码串（前端渲染成二维码）。
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func (h *OrderHandler) CreateQR(c *gin.Context) {
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var req createOrderRequest
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if err := c.ShouldBindJSON(&req); err != nil {
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util.RespondError(c, http.StatusBadRequest, "bad_request", "参数错误："+err.Error())
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return
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}
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qr, order, err := h.svc.CreateQR(c.Request.Context(), req.ProductID, c.ClientIP())
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if err != nil {
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if errors.Is(err, service.ErrProductNotFound) {
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util.RespondError(c, http.StatusNotFound, "product_not_found", err.Error())
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return
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}
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util.RespondError(c, http.StatusInternalServerError, "create_failed", err.Error())
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return
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}
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util.RespondSuccess(c, gin.H{
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"qr_code": qr,
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"out_trade_no": order.OutTradeNo,
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"amount": order.Amount,
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"subject": order.Subject,
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})
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}
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// AlipayNotify POST /api/v1/notify/alipay —— 异步回调。
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// 成功必须返回纯文本 "success"，否则支付宝会按策略重发。
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func (h *OrderHandler) AlipayNotify(c *gin.Context) {
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if err := h.svc.HandleAlipayNotify(c.Request.Context(), c.Request); err != nil {
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c.String(http.StatusOK, "failure") // 回 failure 让支付宝重试（也可记录后人工处理）
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return
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}
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c.String(http.StatusOK, "success")
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}
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// GetStatus GET /api/v1/orders/:out_trade_no —— 供结果页轮询订单状态。
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func (h *OrderHandler) GetStatus(c *gin.Context) {
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out := c.Param("out_trade_no")
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o, err := h.svc.GetByOutTradeNo(out)
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if err != nil {
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util.RespondError(c, http.StatusNotFound, "order_not_found", "订单不存在")
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return
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}
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util.RespondSuccess(c, gin.H{
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"out_trade_no": o.OutTradeNo,
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"subject": o.Subject,
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"amount": o.Amount,
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"status": o.Status,
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"trade_no": o.TradeNo,
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"paid_at": o.PaidAt,
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})
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}
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