54 lines
2.3 KiB
Python
54 lines
2.3 KiB
Python
"""模拟交易网关路由（PRD FR-1 · 薄路由，不含业务）。
|
||
|
||
鉴权：`Depends(get_auth_context)`（B6 回挂，评审 P2-2）——一期接受
|
||
risk_demo 演示账号或客户本人（auth.customer_id == 请求 customer_id，
|
||
PRD FR-1 §鉴权）；越权经 deps.deny 审计后 403。T-01 后工厂内部换 JWT。
|
||
trace：main 中间件贯通（B7），响应头 X-Trace-Id 回写；service 层 ensure_trace
|
||
仍兜底脚本/测试直调场景。
|
||
挂载：main.py include（B7）。错误体统一 ApiError → 手册 §10 结构（挂账④），
|
||
convert 400 / 资源 404 不变 HTTP 语义。
|
||
"""
|
||
|
||
from __future__ import annotations
|
||
|
||
from decimal import Decimal
|
||
|
||
from fastapi import APIRouter, Depends
|
||
from pydantic import BaseModel, Field
|
||
|
||
from app.api.deps import AuthContext, deny, get_auth_context
|
||
from app.gateway.trade_gateway import UnsupportedTradeType, submit_trade
|
||
from app.repository.risk_repository import RiskRepository
|
||
from app.utils.exceptions import ApiError
|
||
|
||
router = APIRouter(prefix="/api/simulate", tags=["simulate"])
|
||
|
||
|
||
def _repo() -> RiskRepository:
|
||
"""审计仓储（deny 留痕用；测试 monkeypatch 点）。"""
|
||
return RiskRepository()
|
||
|
||
|
||
class TradeRequest(BaseModel):
|
||
customer_id: str = Field(..., min_length=1)
|
||
product_id: str = Field(..., min_length=1)
|
||
trade_type: str = Field(..., max_length=16, description="subscribe | redeem；convert 显式拒绝")
|
||
amount: Decimal = Field(..., gt=0, description="交易金额（元），必须为正数")
|
||
|
||
|
||
@router.post("/trade")
|
||
def submit_trade_api(req: TradeRequest, auth: AuthContext = Depends(get_auth_context)) -> dict:
|
||
"""模拟交易（FR-1）：适当性阻断或放行+引擎判定，返回 blocked + trade_id。"""
|
||
if not (auth.has_role("risk_demo") or (auth.is_customer() and auth.customer_id == req.customer_id)):
|
||
deny(
|
||
auth, "AUTH_403_ROLE", _repo(),
|
||
customer_id=req.customer_id, message="risk_demo or owner customer only",
|
||
agent_type="platform", # 网关越权与放行审计同口径（复审 P3）
|
||
)
|
||
try:
|
||
return submit_trade(req.model_dump())
|
||
except UnsupportedTradeType as exc:
|
||
raise ApiError(400, "BAD_REQUEST", str(exc)) from exc
|
||
except LookupError as exc: # NotFoundError 亦为其子类；已统一（B6 评审 P3-5）
|
||
raise ApiError(404, "NOT_FOUND", str(exc)) from exc
|