wangjia
c5949a595a
从"每单唯一 HD 地址"改为"单个固定收款地址 + 每单唯一金额",归集成本 O(订单数)→O(1)。 - store: pay_orders 加 user_ref/expect_amount(唯一金额)/matched_tx_id;新 orphan_payments 表; ActiveOrderByUser(同用户单订单)、AmountRecentlyUsed(迟到窗口内金额不复用)、TxHandled(幂等)、 RecordOrphan。去掉每单派生游标。 - pay: CreateOrder(userRef,sku,priceMicro)——同用户单订单校验 + 分配唯一金额(base+随机微尾数[1,9999]、 cooldown 内不复用),address 恒为收款地址。 - tron: Transfer 加 BlockTs(区块时间秒),取 block_timestamp。 - watcher: 单地址取到账,按"金额==expect && block_ts>建单"匹配 → paid;不匹配的到账 → orphan;幂等。 - httpapi: POST /order 加 user_ref,同用户重复 → 409;main 收款地址=PAY_RECEIVE_ADDRESS 或 xpub index0。 - 测试:唯一金额/同地址、同用户单订单、精确匹配、付错成孤儿、迟到不误配新单、付款早于建单不匹配、 超时、幂等、409,全绿。README 更新为单地址模型+API(user_ref/精确金额/orphan)。 Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
92 lines
2.7 KiB
Go
92 lines
2.7 KiB
Go
// Package httpapi exposes the order endpoints a storefront (e.g. 独角数卡) calls:
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// create a payment (get a receiving address) and poll its status.
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package httpapi
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import (
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"encoding/json"
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"errors"
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"net/http"
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"time"
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"github.com/wangjia/pangolin/pay/internal/pay"
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"github.com/wangjia/pangolin/pay/internal/store"
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)
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type Handler struct{ svc *pay.Service }
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// New wires the routes (Go 1.22 method+wildcard patterns).
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func New(svc *pay.Service) http.Handler {
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h := &Handler{svc: svc}
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mux := http.NewServeMux()
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mux.HandleFunc("POST /order", h.createOrder)
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mux.HandleFunc("GET /order/{orderNo}", h.getOrder)
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mux.HandleFunc("GET /healthz", func(w http.ResponseWriter, _ *http.Request) {
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w.WriteHeader(http.StatusOK)
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_, _ = w.Write([]byte("ok"))
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})
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return mux
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}
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type createReq struct {
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UserRef string `json:"user_ref"`
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SKU string `json:"sku"`
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Amount int64 `json:"amount"` // base price, micro-USDT (1e-6)
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}
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type orderResp struct {
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OrderNo string `json:"order_no"`
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Address string `json:"address"`
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ExpectAmount int64 `json:"expect_amount"`
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Status string `json:"status"`
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ExpiresAt string `json:"expires_at"`
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TxID string `json:"tx_id,omitempty"`
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}
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func toResp(o *store.Order) orderResp {
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return orderResp{
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OrderNo: o.OrderNo,
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Address: o.Address,
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ExpectAmount: o.ExpectAmount,
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Status: string(o.Status),
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ExpiresAt: o.ExpiresAt.UTC().Format(time.RFC3339),
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TxID: o.TxID,
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}
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}
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func writeJSON(w http.ResponseWriter, code int, v any) {
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w.Header().Set("Content-Type", "application/json; charset=utf-8")
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w.WriteHeader(code)
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_ = json.NewEncoder(w).Encode(v)
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}
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func (h *Handler) createOrder(w http.ResponseWriter, r *http.Request) {
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var req createReq
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if err := json.NewDecoder(http.MaxBytesReader(w, r.Body, 4<<10)).Decode(&req); err != nil {
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writeJSON(w, http.StatusBadRequest, map[string]string{"error": "invalid json"})
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return
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}
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o, err := h.svc.CreateOrder(r.Context(), req.UserRef, req.SKU, req.Amount)
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if errors.Is(err, pay.ErrUserHasActiveOrder) {
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writeJSON(w, http.StatusConflict, map[string]string{"error": "user already has an active order"})
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return
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}
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if err != nil {
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writeJSON(w, http.StatusBadRequest, map[string]string{"error": err.Error()})
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return
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}
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writeJSON(w, http.StatusCreated, toResp(o))
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}
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func (h *Handler) getOrder(w http.ResponseWriter, r *http.Request) {
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o, err := h.svc.GetOrder(r.Context(), r.PathValue("orderNo"))
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if errors.Is(err, store.ErrNotFound) {
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writeJSON(w, http.StatusNotFound, map[string]string{"error": "not found"})
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return
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}
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if err != nil {
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writeJSON(w, http.StatusInternalServerError, map[string]string{"error": "internal"})
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return
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}
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writeJSON(w, http.StatusOK, toResp(o))
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}
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