39 lines
1.7 KiB
Python
39 lines
1.7 KiB
Python
"""模拟交易网关路由（PRD FR-1 · 薄路由，不含业务）。
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鉴权：依赖 T-01 JWT（risk_demo 或客户本人 customer_id == subject）；
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`get_auth_context` B6 落地后在此挂 `Depends`，本路由签名不变（开发计划 B5/B6 边界）。
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trace：B7 中间件贯通；B7 前由 service 层 ensure_trace 兜底。
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挂载：B7 集成 main.py（当前仅 TestClient 独立挂 router 验证）。
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统一响应外壳：utils/response.py 为占位（P1 任务），落地点挂账 B7（届时
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simulate/risk 一并包裹，本路由返回体不变）。
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"""
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from __future__ import annotations
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from decimal import Decimal
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from fastapi import APIRouter, HTTPException
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from pydantic import BaseModel, Field
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from app.gateway.trade_gateway import UnsupportedTradeType, submit_trade
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router = APIRouter(prefix="/api/simulate", tags=["simulate"])
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class TradeRequest(BaseModel):
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customer_id: str = Field(..., min_length=1)
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product_id: str = Field(..., min_length=1)
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trade_type: str = Field(..., max_length=16, description="subscribe | redeem；convert 显式拒绝")
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amount: Decimal = Field(..., gt=0, description="交易金额（元），必须为正数")
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@router.post("/trade")
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def submit_trade_api(req: TradeRequest) -> dict:
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"""模拟交易（FR-1）：适当性阻断或放行+引擎判定，返回 blocked + trade_id。"""
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try:
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return submit_trade(req.model_dump())
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except UnsupportedTradeType as exc:
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raise HTTPException(status_code=400, detail=str(exc)) from exc
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except LookupError as exc: # KeyError 亦为其子类；B6 统一 NotFoundError 时收敛为精确类型
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raise HTTPException(status_code=404, detail=str(exc)) from exc
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