Files
shaguabijia-app-server/app/api/v1/coupon.py
T
no_gen_mu 8fe58f4a42 feat(coupon): add /api/v1/coupon/step proxy to pricebot
- new POST /api/v1/coupon/step, JWT-authenticated, async httpx forwards body to pricebot
- new PRICEBOT_BASE_URL / PRICEBOT_REQUEST_TIMEOUT_SEC settings (default localhost:8000)
- error handling: pricebot unreachable / 5xx -> 502 with friendly message
- tests: auth, passthrough, 5xx, unreachable, invalid json (5 cases, all pass)

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
2026-05-25 19:46:14 +08:00

73 lines
2.1 KiB
Python

"""领券业务透传端点。
把客户端的 POST /api/v1/coupon/step 请求原样转发给 pricebot-backend
的 /api/coupon/step,只在外层加 JWT 鉴权。
pricebot 协议文档:
pricebot-backend/docs/projects/领券-客户端对接协议.md
"""
from __future__ import annotations
import logging
from typing import Any
import httpx
from fastapi import APIRouter, HTTPException, Request, status
from app.api.deps import CurrentUser
from app.core.config import settings
logger = logging.getLogger("shagua.coupon")
router = APIRouter(prefix="/api/v1/coupon", tags=["coupon"])
@router.post("/step", summary="领券任务步进 (透传到 pricebot)")
async def coupon_step(
request: Request,
user: CurrentUser,
) -> dict[str, Any]:
"""把请求体原样转发给 pricebot-backend 的 /api/coupon/step。
- 鉴权: Bearer access_token (get_current_user 隐式校验)
- 透传: 不做 schema 校验,pricebot 自己校验
- 失败: 网络不可达 / pricebot 5xx → 502 + 友好 message
"""
try:
body = await request.json()
except Exception as e:
raise HTTPException(status_code=400, detail=f"invalid json body: {e}") from e
url = f"{settings.PRICEBOT_BASE_URL.rstrip('/')}/api/coupon/step"
timeout = settings.PRICEBOT_REQUEST_TIMEOUT_SEC
logger.info(
"coupon_step user_id=%d trace_id=%s step=%s",
user.id,
body.get("trace_id"),
body.get("step"),
)
try:
async with httpx.AsyncClient(timeout=timeout) as client:
resp = await client.post(url, json=body)
except httpx.RequestError as e:
logger.error("[pricebot] request failed: %s", e)
raise HTTPException(
status_code=status.HTTP_502_BAD_GATEWAY,
detail=f"pricebot upstream unreachable: {e}",
) from e
if resp.status_code >= 500:
logger.error(
"[pricebot] 5xx status=%d body=%s",
resp.status_code,
resp.text[:500],
)
raise HTTPException(
status_code=status.HTTP_502_BAD_GATEWAY,
detail=f"pricebot upstream returned {resp.status_code}",
)
return resp.json()