feat(observability): 抓取去掉首页预热,交易补齐链路埋点
两个问题一起处理,都与「出站请求与可观测性」有关。 ## 抓取:正常路径不再多打一次首页 site_session 原先每条通道每 30 分钟打一次 www.rakuten.co.jp/ 做预热,而且预热 返回非 2xx 时 warmed_at 不置位——那种情况下每个请求前都会再打一次首页。 Akamai 的 cookie 随任意页面响应下发,目标页自己就会带回来,专门先打一次首页除了 多一个出站请求(以及多一次被风控计数的机会)之外没有额外收益:首个请求无论打哪个 URL 都是冷的 ~11s,之后都复用 cookie。 改为 cookie 由目标页响应建立(_note_cookies)、超 TTL 主动清空 (_drop_expired_cookies)。首页只保留在失败修复路径上(_rewarm_on_home):目标页 已经吃了挑战页时,拿首页换一套干净 cookie 比继续撞同一个 URL 更安全。happy path 的出站请求数 2 → 1。 _note_cookies 刻意不在每次响应时刷新时刻:TTL 要从「这套 cookie 第一次出现」算起, 每次都刷新会让一套 cookie 被无限续命,反而绕过了 session_ttl_seconds 的本意。 profile_status() 的 warmed 字段名保留(上游健康检查看板在用),语义改为「当前有 可复用的 Akamai cookie」,不再代表「已专门预热过首页」。 ## 交易:此前没有任何有意义的链路数据 根因是 trading 的实际工作两类自动埋点都覆盖不到:站点交互走 Playwright(不经 httpx),worker 主循环是后台 asyncio 任务(没有 HTTP 入口,因此没有根 span)。 于是发给网关的每次 httpx 调用各自成为孤立 trace——观测后台上只剩一堆请求记录。 新增手工埋点: - order.task:一笔下单的根 span,一个 task_id 一条 trace,带 order.route (execute / recovery / already_finished)与终态 order.terminal_status - order.step.*:清车 → 加购 → 校验 → 确认 → 提交 → 付款,每步一个子 span, 带 order.evidence_ref,可从 span 直接定位落盘证据 - site.*:12 个 Playwright 交互方法(用 traced 装饰器而非 with 块——这些方法的 函数体本就很长,再加一层缩进不利于阅读) - account_query:只读查询单的根 span,带 query.outcome 空转的长轮询(30 秒一次、绝大多数返回空)用 suppressed() 屏蔽:量大且没有信息量, 把观测后台刷满的正是它们。领到任务后的网关调用都在任务根 span 底下,不受影响。 闸门 / 风控拦截会被 _execute_with_renewal 吞掉转 needs_human,异常冒不到根 span, 被拦下的单在 trace 里跟成功下单一模一样。加 _execute_recording_errors 一层统一 记录,比每个 except 分支各写一遍省事,也不会漏掉后续新增的分支。 _report_safe 写 span 属性前判断 is_recording():付款后监控是 create_task 起的, asyncio 在创建时就把 context 复制了进去,等它真正跑起来根 span 早已结束—— get_current_span() 拿到的仍是那个已结束的 span(不是 INVALID_SPAN),写属性会打 "Setting attribute on ended span"。当前监控路径不传 terminal_status 走不到那里, 这道判断是防以后。 ## 顺带修掉:instrument_app 从未生效 instrument_app 用 _provider is None 做前置判断,但三个服务都在模块导入时执行 app = create_app(),而 setup_telemetry 要等 lifespan 才跑——那时 _provider 还是 None,照着判断直接 return。**FastAPI 从来没被打桩过,三个服务一条 server span 都没有。** 实测确认两件事:导入期打桩能出 span,lifespan 内打桩出不来(instrument_app 是加 中间件,应用开始服务后加进去不生效);provider 后设也不影响 ProxyTracer 委托到 真实 provider。所以只能在导入期装,判断条件改为 otel_enabled。 app/gateway/main.py 此前完全没接 telemetry,worker 出站请求带过来的 traceparent 没人接上,一条下单链路在网关这里断掉,只看得到 worker 侧那半截。补上 setup_telemetry(service_name="rakuten-gateway") 与 instrument_app / shutdown。 ## 验证 新增 8 个用例:首页零请求、cookie 复用与过期清空、失败后用首页换 cookie、一任务 一 trace 的父子结构、闸门失败标 ERROR、空转不埋点,以及 instrument_app 调用顺序 的回归测试。全量 526 passed。 Playwright 那些 site.* 埋点只做了静态验证(测试用桩替换站点方法),没有跑真实 浏览器下单确认 span 真的落地。 Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
This commit is contained in:
@@ -21,8 +21,12 @@ import logging
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from datetime import datetime, timezone
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from typing import TYPE_CHECKING, Any
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from opentelemetry import trace
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from opentelemetry.trace import SpanKind
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from app.shared.errors import AppError, InvalidRequestError
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from app.shared.task_state import AccountQueryKind
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from app.shared.telemetry import record_error, set_attributes, suppressed
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from app.trading.worker.client import GatewayClient
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from app.trading.worker.models import QueryTask
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from app.trading.worker.site_interact import SiteInteractor
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@@ -32,6 +36,8 @@ if TYPE_CHECKING:
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logger = logging.getLogger(__name__)
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tracer = trace.get_tracer(__name__)
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# 没给 since 时的窗口下界。用 epoch 而不是 None,是为了让翻页终止条件
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# (`order_date < since`)与「不设下界」共用同一条代码路径,不多一个分支。
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_EPOCH = datetime(1970, 1, 1, tzinfo=timezone.utc)
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@@ -100,7 +106,9 @@ class QueryRunner:
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logger.info("账号查询 worker 启动:worker_id=%s", self.worker_id)
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while self._running:
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try:
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query = await self._gateway.lease_query(self.worker_id, wait=30)
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# 与下单主循环同样:空转的长轮询不埋点,见 runner.py::run
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with suppressed():
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query = await self._gateway.lease_query(self.worker_id, wait=30)
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except AppError as exc:
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logger.warning("查询 lease 失败:%s (err=%s)", exc.message, exc.err_code)
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await asyncio.sleep(5)
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@@ -122,7 +130,27 @@ class QueryRunner:
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# ---- 单张查询单 ----
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async def handle(self, query: QueryTask) -> None:
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"""执行一张查询单并回报结果。任何失败都转成一次「失败回报」,不抛出去"""
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"""执行一张查询单并回报结果。任何失败都转成一次「失败回报」,不抛出去
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这里开的 span 是一张查询单的根:底下挂着站点读取(`site.*`)与回报网关的
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HTTP 调用,一个 query_id 对应一条 trace。查询失败不抛出去(都转成失败
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回报),所以失败信息由各分支显式记到 span 上——否则 trace 里会显示成功。
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"""
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with tracer.start_as_current_span("account_query", kind=SpanKind.CONSUMER) as span:
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set_attributes(
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span,
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{
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"query.query_id": query.query_id,
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"query.kind": query.kind,
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"query.site": query.site,
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"query.attempt": query.attempt,
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"query.worker_id": self.worker_id,
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},
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)
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await self._handle_traced(query, span)
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async def _handle_traced(self, query: QueryTask, span: "trace.Span") -> None:
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"""handle() 的实际执行体,拆出来只为让根 span 的 with 块保持一层缩进"""
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logger.info(
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"领到查询单:query_id=%s kind=%s attempt=%s",
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query.query_id, query.kind, query.attempt,
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@@ -132,11 +160,13 @@ class QueryRunner:
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self.execute(query),
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timeout=self._settings.account_query_timeout_seconds,
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)
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except asyncio.TimeoutError:
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except asyncio.TimeoutError as exc:
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logger.warning(
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"查询超时(%s 秒,多半是下单任务正占着账号锁):query_id=%s",
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self._settings.account_query_timeout_seconds, query.query_id,
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)
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span.set_attribute("query.outcome", "timeout")
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record_error(span, exc)
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await self._report_safe(
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query,
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success=False,
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@@ -152,12 +182,16 @@ class QueryRunner:
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"查询失败:query_id=%s code=%s msg=%s",
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query.query_id, exc.err_code, exc.message,
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)
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span.set_attribute("query.outcome", "failed")
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record_error(span, exc)
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await self._report_safe(
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query, success=False, error_code=exc.err_code, error_message=exc.message
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)
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return
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except Exception as exc: # noqa: BLE001
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logger.exception("查询未预期异常:query_id=%s", query.query_id)
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span.set_attribute("query.outcome", "unexpected_error")
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record_error(span, exc)
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await self._report_safe(
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query,
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success=False,
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@@ -168,10 +202,12 @@ class QueryRunner:
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payload, oversized = self._enforce_result_size(result)
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if oversized is not None:
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span.set_attribute("query.outcome", "oversized")
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await self._report_safe(
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query, success=False, error_code=1003, error_message=oversized
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)
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return
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span.set_attribute("query.outcome", "succeeded")
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await self._report_safe(query, success=True, result=payload)
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async def execute(self, query: QueryTask) -> dict[str, Any]:
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+134
-35
@@ -28,6 +28,9 @@ import contextlib
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import logging
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from typing import TYPE_CHECKING
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from opentelemetry import trace
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from opentelemetry.trace import SpanKind, Status, StatusCode
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from app.shared.errors import (
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AppError,
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BrowserDeadError,
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@@ -35,6 +38,7 @@ from app.shared.errors import (
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OrderGuardError,
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)
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from app.shared.task_state import OrderState, TaskStatus
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from app.shared.telemetry import record_error, set_attributes, suppressed
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from app.trading.worker import verify
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from app.trading.worker.client import GatewayClient
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from app.trading.worker.evidence import EvidenceStore
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@@ -47,6 +51,8 @@ if TYPE_CHECKING:
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logger = logging.getLogger(__name__)
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tracer = trace.get_tracer(__name__)
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def _coerce_state(value: str | None) -> OrderState:
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"""把网关返回的 state 字符串安全地包成 OrderState;None 或非法值回落到 CREATED"""
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@@ -115,7 +121,11 @@ class WorkerRunner:
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logger.info("worker 启动:worker_id=%s", self.worker_id)
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while self._running:
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try:
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task = await self._gateway.lease(self.worker_id, wait=30)
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# 空转的长轮询不埋点:30 秒一次、绝大多数返回空,每次都会变成一条
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# 孤立 trace 把观测后台刷满。领到任务后的调用都在 handle() 的根
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# span 底下,不受这里影响。
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with suppressed():
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task = await self._gateway.lease(self.worker_id, wait=30)
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except AppError as exc:
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logger.warning("lease 失败:%s (err=%s)", exc.message, exc.err_code)
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await asyncio.sleep(5)
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@@ -137,13 +147,42 @@ class WorkerRunner:
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# ---- 单任务调度 ----
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async def handle(self, task: LeaseTask) -> None:
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"""单任务调度入口:本地幂等闸门 → 恢复核对 → 执行"""
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"""单任务调度入口:本地幂等闸门 → 恢复核对 → 执行
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这里开的 span 是**整条下单链路的根**:往下的每一步站点交互、每一次回报
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网关都挂在它底下,一个 task_id 对应观测后台里的一条 trace。worker 是后台
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asyncio 任务,没有 HTTP 入口,不开这个根 span 的话下游 httpx 调用会各自
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散成孤立 trace(这正是「只有请求记录、没有链路」的原因)。
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"""
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with tracer.start_as_current_span("order.task", kind=SpanKind.CONSUMER) as span:
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intent = task.intent or {}
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set_attributes(
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span,
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{
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"order.task_id": task.task_id,
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"order.site": task.site,
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"order.worker_id": self.worker_id,
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"order.lease_count": task.lease_count,
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"order.known_state": task.known_state,
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"order.item_url": intent.get("item_url"),
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"order.quantity": intent.get("quantity"),
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},
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)
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try:
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await self._dispatch(task, span)
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except Exception as exc:
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record_error(span, exc)
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raise
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async def _dispatch(self, task: LeaseTask, span: "trace.Span") -> None:
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"""handle() 的实际分支逻辑,拆出来只为让根 span 的 with 块保持一层缩进"""
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# 本地幂等闸门:之前已完成过的任务不再执行
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if await self._db.has_finished(task.task_id):
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final_state = await self._db.final_state(task.task_id)
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logger.info(
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"本地已完成,补报终态:task_id=%s state=%s", task.task_id, final_state
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)
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span.set_attribute("order.route", "already_finished")
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await self._report_safe(
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task,
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state=_coerce_state(final_state),
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@@ -154,10 +193,12 @@ class WorkerRunner:
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# 恢复领取:lease_count > 1 表示 stale → reclaim,必须先核对站点订单
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if task.lease_count > 1:
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span.set_attribute("order.route", "recovery")
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await self._handle_recovery(task)
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return
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# 常规执行
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span.set_attribute("order.route", "execute")
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await self._execute_with_renewal(task)
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async def _handle_recovery(self, task: LeaseTask) -> None:
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@@ -197,11 +238,24 @@ class WorkerRunner:
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# ---- 常规执行 ----
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async def _execute_recording_errors(self, task: LeaseTask) -> None:
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"""execute() 外面加一层:异常先记到任务根 span 上,再原样抛出
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下面那一串 except 分支会把异常**吞掉**转成 needs_human / failed 回报,
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异常冒不到 handle() 的根 span。在这里统一记一次,比每个分支各写一遍省事,
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也不会漏掉新增的分支。
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"""
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try:
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await self.execute(task)
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except Exception as exc:
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record_error(trace.get_current_span(), exc)
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raise
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async def _execute_with_renewal(self, task: LeaseTask) -> None:
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"""在租约自动续期的上下文里执行任务"""
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async with self._renew_lease_every(task, interval=60):
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try:
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await self.execute(task)
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await self._execute_recording_errors(task)
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except NotImplementedError as exc:
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# 站点交互未实现(规格 §10):上报 needs_human,不视为 worker 失败
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logger.warning(
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@@ -521,38 +575,65 @@ class WorkerRunner:
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证据载体)时,其 html / screenshot 即本步骤要落盘的页面与整页截图;
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显式传入的 `html` / `png` 优先级更高,供 step3/step4 等已经单独拿到
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页面的调用点使用。
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每步一个 span,挂在 handle() 的任务根 span 底下:一条 trace 就是一单的
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完整流水(清车 → 加购 → 校验 → 确认 → 提交 → 付款),卡在哪一步、每步
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耗时多少、证据落在哪个 evidence_ref 都能直接读出来。
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"""
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result = await action()
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if isinstance(result, PageSnapshot):
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if html is None:
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html = result.html or None
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if png is None:
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png = result.screenshot or None
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elif html is None and isinstance(result, str):
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# 旧契约兼容:站点方法返回字符串时视为页面 HTML
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html = result
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meta = {
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"step": step_name,
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"state": state.value,
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**(evidence_meta or {}),
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}
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evidence_ref = self._evidence.write_step(
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task.task_id, step_no, step_name, html=html, png=png, meta=meta
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)
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await self._db.index_evidence(task.task_id, step_no, step_name, evidence_ref)
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await self._db.record_event(
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task.task_id, state.value, detail=detail, evidence_ref=evidence_ref
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)
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await self._gateway.report(
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task.task_id,
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self.worker_id,
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state=state,
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payable_yen=payable_yen,
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pay_deadline=pay_deadline,
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site_order_id=site_order_id,
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evidence_ref=evidence_ref,
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detail=detail,
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)
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with tracer.start_as_current_span(f"order.step.{step_name}") as span:
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set_attributes(
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span,
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{
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"order.task_id": task.task_id,
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"order.step_no": step_no,
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"order.step_name": step_name,
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"order.state": state.value,
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},
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)
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try:
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result = await action()
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except Exception as exc:
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record_error(span, exc)
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raise
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if isinstance(result, PageSnapshot):
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if html is None:
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html = result.html or None
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if png is None:
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png = result.screenshot or None
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elif html is None and isinstance(result, str):
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# 旧契约兼容:站点方法返回字符串时视为页面 HTML
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html = result
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meta = {
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"step": step_name,
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"state": state.value,
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**(evidence_meta or {}),
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}
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||||
evidence_ref = self._evidence.write_step(
|
||||
task.task_id, step_no, step_name, html=html, png=png, meta=meta
|
||||
)
|
||||
set_attributes(
|
||||
span,
|
||||
{
|
||||
"order.evidence_ref": evidence_ref,
|
||||
"order.site_order_id": site_order_id,
|
||||
"order.payable_yen": payable_yen,
|
||||
},
|
||||
)
|
||||
await self._db.index_evidence(task.task_id, step_no, step_name, evidence_ref)
|
||||
await self._db.record_event(
|
||||
task.task_id, state.value, detail=detail, evidence_ref=evidence_ref
|
||||
)
|
||||
await self._gateway.report(
|
||||
task.task_id,
|
||||
self.worker_id,
|
||||
state=state,
|
||||
payable_yen=payable_yen,
|
||||
pay_deadline=pay_deadline,
|
||||
site_order_id=site_order_id,
|
||||
evidence_ref=evidence_ref,
|
||||
detail=detail,
|
||||
)
|
||||
|
||||
async def _report_safe(
|
||||
self,
|
||||
@@ -566,7 +647,25 @@ class WorkerRunner:
|
||||
payable_yen: int | None = None,
|
||||
pay_deadline: str | None = None,
|
||||
) -> None:
|
||||
"""回报 gateway,失败只记日志不抛——主循环不能因为回报失败退出"""
|
||||
"""回报 gateway,失败只记日志不抛——主循环不能因为回报失败退出
|
||||
|
||||
顺带把终态标到当前 span 上。这一步是必要的:`_execute_with_renewal` 会把
|
||||
闸门拦截、风控拦截、浏览器掉线等异常**吞掉**转成 needs_human 回报,异常
|
||||
不会冒到 handle() 的根 span,于是一笔被拦下的单在 trace 里看起来跟成功
|
||||
下单一模一样。所有这些分支都汇到这个方法,标在这里最省事也最不容易漏。
|
||||
|
||||
`is_recording()` 那道判断不是多余的:付款后监控(_monitor_order)是
|
||||
`create_task` 起的后台任务,而 asyncio 在创建时就把当时的 context 复制了
|
||||
进去——等它真正跑起来,任务根 span 早已结束,但 `get_current_span()` 拿到
|
||||
的仍是那个**已结束**的 span(不是 INVALID_SPAN)。往上写属性会打
|
||||
"Setting attribute on ended span" 警告。当前监控路径不传 terminal_status
|
||||
走不到这里,但这道判断保证以后传了也不会污染已完成的任务 span。
|
||||
"""
|
||||
span = trace.get_current_span()
|
||||
if terminal_status is not None and span.is_recording():
|
||||
span.set_attribute("order.terminal_status", terminal_status.value)
|
||||
if terminal_status in (TaskStatus.NEEDS_HUMAN, TaskStatus.FAILED):
|
||||
span.set_status(Status(StatusCode.ERROR, detail))
|
||||
try:
|
||||
await self._gateway.report(
|
||||
task.task_id,
|
||||
|
||||
@@ -96,6 +96,8 @@ from dataclasses import dataclass, field
|
||||
from datetime import datetime
|
||||
from typing import TYPE_CHECKING, TypeVar
|
||||
|
||||
from opentelemetry.trace import SpanKind
|
||||
|
||||
from app.shared.errors import (
|
||||
BrowserDeadError,
|
||||
CartOperationError,
|
||||
@@ -113,6 +115,8 @@ from app.shared.purchase_contract import (
|
||||
)
|
||||
from app.shared.proxy import playwright_launch_proxy
|
||||
from app.shared.task_state import OrderState
|
||||
from app.shared.telemetry import traced
|
||||
|
||||
from app.trading.core import auth_site
|
||||
from app.trading.worker.models import LeaseTask
|
||||
|
||||
@@ -973,6 +977,7 @@ class SiteInteractor:
|
||||
|
||||
# ---- 已实现:add_to_cart / verify_cart / cart_status ----
|
||||
|
||||
@traced("site.add_to_cart", kind=SpanKind.CLIENT)
|
||||
async def add_to_cart(self, task: LeaseTask) -> PageSnapshot:
|
||||
"""加购(worker 入口):从 task.intent 取字段,调 _add_to_cart_with_fields
|
||||
|
||||
@@ -1015,6 +1020,7 @@ class SiteInteractor:
|
||||
screenshot=result.get("screenshot") or b"",
|
||||
)
|
||||
|
||||
@traced("site.add_to_cart_payload", kind=SpanKind.CLIENT)
|
||||
async def add_to_cart_payload(
|
||||
self,
|
||||
*,
|
||||
@@ -1163,6 +1169,7 @@ class SiteInteractor:
|
||||
"screenshot": screenshot,
|
||||
}
|
||||
|
||||
@traced("site.verify_cart", kind=SpanKind.CLIENT)
|
||||
async def verify_cart(self, task: LeaseTask) -> PageSnapshot:
|
||||
"""校验购物车里有没有刚加的商品
|
||||
|
||||
@@ -1196,6 +1203,7 @@ class SiteInteractor:
|
||||
# 2. 渲染 cart 页确认 item_id 在里面
|
||||
return await self._verify_item_in_cart_html(item_id, label=f"task_id={task.task_id}")
|
||||
|
||||
@traced("site.cart_status", kind=SpanKind.CLIENT)
|
||||
async def cart_status(self) -> dict:
|
||||
"""轻量查询购物车状态:调 cart count JSONP API,不渲染整页
|
||||
|
||||
@@ -1216,6 +1224,7 @@ class SiteInteractor:
|
||||
|
||||
# ---- 已实现:clear_cart / remove_item(Playwright UI 点击)----
|
||||
|
||||
@traced("site.clear_cart", kind=SpanKind.CLIENT)
|
||||
async def clear_cart(self) -> dict:
|
||||
"""清空购物车:渲染 cart SPA → 反复点第一个「削除」按钮 → count API 校验
|
||||
|
||||
@@ -1304,6 +1313,7 @@ class SiteInteractor:
|
||||
"screenshot": screenshot,
|
||||
}
|
||||
|
||||
@traced("site.remove_item", kind=SpanKind.CLIENT)
|
||||
async def remove_item(self, item_id: str) -> dict:
|
||||
"""删除购物车里指定 item_id 的商品
|
||||
|
||||
@@ -1506,6 +1516,7 @@ class SiteInteractor:
|
||||
|
||||
# ---- 已实现:enter_checkout(到下单确认页,中间步骤未经真实 HTML 验证)----
|
||||
|
||||
@traced("site.enter_checkout", kind=SpanKind.CLIENT)
|
||||
async def enter_checkout(self, task: LeaseTask) -> PageSnapshot:
|
||||
"""进入下单确认页:购物车 → 点「購入手続き」→ 依次处理中间步骤 → 落地确认页
|
||||
|
||||
@@ -2017,6 +2028,7 @@ class SiteInteractor:
|
||||
"""
|
||||
return _parse_checkout_summary(html)
|
||||
|
||||
@traced("site.submit_order", kind=SpanKind.CLIENT)
|
||||
async def submit_order(self, task: LeaseTask) -> SubmitOutcome:
|
||||
"""点击下单确认页的最终确认按钮,提交订单
|
||||
|
||||
@@ -2118,6 +2130,7 @@ class SiteInteractor:
|
||||
evidence=PageSnapshot(html=html, screenshot=screenshot),
|
||||
)
|
||||
|
||||
@traced("site.pay", kind=SpanKind.CLIENT)
|
||||
async def pay(self, task: LeaseTask, site_order_id: str) -> PageSnapshot:
|
||||
"""检查提交下单后是否已完成付款 / 是否触发了需要人工介入的验证环节
|
||||
|
||||
@@ -2181,6 +2194,7 @@ class SiteInteractor:
|
||||
except Exception:
|
||||
logger.debug("pay 关闭确认页失败", exc_info=True)
|
||||
|
||||
@traced("site.check_order_status", kind=SpanKind.CLIENT)
|
||||
async def check_order_status(self, site_order_id: str) -> OrderStatusSnapshot:
|
||||
"""付款后监控的单次探测:查一次订单详情页的配送阶段,不循环
|
||||
|
||||
@@ -2198,6 +2212,7 @@ class SiteInteractor:
|
||||
"""
|
||||
return (await self.fetch_order_detail(site_order_id)).status
|
||||
|
||||
@traced("site.fetch_order_detail", kind=SpanKind.CLIENT)
|
||||
async def fetch_order_detail(self, site_order_id: str) -> OrderDetailSnapshot:
|
||||
"""读一次订单详情页:配送阶段 + 页面原始 __INITIAL_STATE__
|
||||
|
||||
@@ -2269,6 +2284,7 @@ class SiteInteractor:
|
||||
f"check_order_status site_order_id={site_order_id}", read
|
||||
)
|
||||
|
||||
@traced("site.list_recent_orders", kind=SpanKind.CLIENT)
|
||||
async def list_recent_orders(
|
||||
self, *, since: datetime, max_pages: int | None = None
|
||||
) -> OrderListWindow:
|
||||
|
||||
Reference in New Issue
Block a user