feat(client): 慢请求监控(>500ms 记日志+上报);拆除列表 provider 的 _cache 失败兜底
- SlowRequestInterceptor:单次 API 调用超 500ms 即 debugPrint long-request 日志并经 ErrorReporter 上报(error_type=slow_api,按 method+归一路径 5 分钟 节流)。服务端 GIN 日志只见自身处理耗时,网络往返段只有客户端可观测。 - 拆除 10 个列表 provider 的 _cache 失败兜底:实测线上接口客户端视角典型 50-120ms、最坏约 270ms(列表类全部 <500ms),失败静默端旧数据弊大于利 (曾放大跨账号残留问题),改为明确进入错误态由用户重试。 Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
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@@ -17,19 +17,11 @@ class PurchaseListNotifier extends AsyncNotifier<PurchaseListResult> {
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int _page = 1;
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int _pageSize = 10;
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String _status = ''; // '' | pending | paid | failed
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PurchaseListResult? _cache;
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@override
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Future<PurchaseListResult> build() async {
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ref.watch(authStateProvider.select((s) => s.user?.shopId));
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try {
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final result = await _fetch();
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_cache = result;
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return result;
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} catch (_) {
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if (_cache != null) return _cache!;
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rethrow;
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}
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return _fetch();
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}
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Future<PurchaseListResult> _fetch() {
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@@ -46,17 +38,12 @@ class PurchaseListNotifier extends AsyncNotifier<PurchaseListResult> {
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void reload() {
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// 保留上一次数据(isReloading)→ 屏幕可继续渲染旧内容 + 叠加半透明进度,不白屏。
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state = const AsyncValue<PurchaseListResult>.loading()
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.copyWithPrevious(state);
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state =
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const AsyncValue<PurchaseListResult>.loading().copyWithPrevious(state);
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_fetch().then((result) {
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_cache = result;
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state = AsyncValue.data(result);
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}, onError: (Object e, StackTrace st) {
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if (_cache != null) {
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state = AsyncValue.data(_cache!);
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} else {
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state = AsyncValue.error(e, st);
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}
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state = AsyncValue.error(e, st);
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});
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}
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