feat:新增接口

api/routers/purchase.py

@@ -0,0 +1,23 @@
+
+"""申购路由：申购基金产品（业务在 service/purchase.py，路由只做编排）。"""
+from fastapi import APIRouter, Depends
+from sqlalchemy.ext.asyncio import AsyncSession
+
+from api.deps import get_current_user
+from config.deps import get_db
+from model.sys_user import SysUser
+from schemas.purchase import PurchaseReq
+from service import purchase as purchase_service
+from utils.response import success
+
+router = APIRouter()
+
+
+@router.post("/purchase", summary="申购基金产品")
+async def purchase(
+    req: PurchaseReq,
+    user: SysUser = Depends(get_current_user),
+    db: AsyncSession = Depends(get_db),
+):
+    result = await purchase_service.purchase(db, user, req.product_id, req.amount)
+    return success(result.model_dump(mode="json"))