use_request 0.6.0

A Flutter useRequest-style async request management library based on dio, flutter_hooks, and Riverpod.

维护约定：自本版本起，更新日志同时提供简体中文与英文，便于 pub.dev 直接阅读。

Maintenance note: Starting from this version, the changelog is maintained in both Simplified Chinese and English for better readability on pub.dev.

0.6.0

• 新增: 闭包驱动版入口 useRequestFn（closure mode）。service 为零参闭包，请求条件一律从闭包捕获的外部状态读取，refreshDeps 仅作为触发器；适用于搜索、筛选、Provider/Riverpod 派生条件等“依赖变化需带最新参数重新请求”的场景，不受 refreshDeps 复用上一次参数语义的影响。

• 文档: README 新增《参数从哪来——闭包模式、参数模式与 refreshDeps》一章，系统说明两种参数来源模式的选型、refresh / refreshDeps 语义差异与组合陷阱，附 CRUD、分页、无限加载、搜索 + 筛选四个完整管理后台示例；同步补充目录导航。

• 测试: 新增 useRequestFn 闭包时效性回归测试，覆盖 refreshDeps 变化后闭包必须读到最新筛选值，以及 refresh() 必须走最新一帧闭包（而非挂载时的旧闭包）。

• Added: useRequestFn is a closure-mode entrypoint where the service is a zero-argument closure and request conditions are always read from captured external state. refreshDeps acts only as a trigger, making it suitable for search, filters, and Provider/Riverpod-derived conditions that must re-request with the latest inputs instead of reusing previous params.

• Docs: Added a new README section, "Where do params come from? Closure mode, params mode, and refreshDeps", covering when to choose each param source model, the semantic differences between refresh and refreshDeps, common composition pitfalls, and four complete admin-style examples for CRUD, pagination, infinite loading, and search plus filters. The document navigation was also updated.

• Tests: Added regression tests for useRequestFn closure freshness, covering both that the closure reads the latest filter value after refreshDeps changes, and that refresh() uses the most recent frame's closure rather than the one captured at mount.

0.5.1

• 修复: 相同 cacheKey 的并发请求命中 pending cache 时不再取消正在复用的 Dio 请求。

• 修复: HttpRequestConfig.cancelToken 与 UseRequestOptions.cancelToken 统一关联到内部令牌，外部令牌和 result.cancel() 均可中断底层请求，内部取消不会反向废弃外部令牌。

• 修复: Riverpod updateOptions() 动态启用、替换或关闭 refreshOnFocus、refreshOnReconnect、reconnectStream、pollingWhenHidden 时会同步更新监听器。

• 修复: Hook 版 isPolling 改为响应式状态，调用 pausePolling() / resumePolling() 后立即更新；控制器卸载时静默释放，避免对已销毁 Widget 请求重建。

• 修复: HttpRequestConfig 值语义纳入 Dio Options 中会影响真实请求的字段，避免 headers、responseType、编码器等变化被误判为相同请求。

• 测试: 增加 pending 去重与取消、双向令牌关联、动态聚焦 / 重连监听、轮询响应式状态和 Options 值语义的组合测试。

• Fixed: Concurrent requests with the same cacheKey no longer cancel an in-flight Dio request when they hit the pending cache.

• Fixed: HttpRequestConfig.cancelToken and UseRequestOptions.cancelToken are now linked to the same internal token chain, so both the external token and result.cancel() can abort the underlying request, while internal cancellation does not invalidate the external token in reverse.

• Fixed: Riverpod updateOptions() now updates listeners correctly when refreshOnFocus, refreshOnReconnect, reconnectStream, or pollingWhenHidden are enabled, replaced, or disabled at runtime.

• Fixed: In the Hook implementation, isPolling is now reactive and updates immediately after pausePolling() or resumePolling(). Controllers are also released silently on dispose to avoid scheduling rebuilds for destroyed widgets.

• Fixed: The HttpRequestConfig value semantics now include Dio Options fields that affect the real request, preventing changes such as headers, responseType, or encoders from being treated as the same request by mistake.

• Tests: Added combined coverage for pending deduplication and cancellation, bidirectional token wiring, dynamic focus and reconnect listeners, reactive polling state, and Options value semantics.

0.5.0

本版本包含若干破坏性变更（BREAKING CHANGE），详见下方标注项；其余为向后兼容的缺陷修复。

This release contains several BREAKING CHANGEs, marked inline below. The remaining fixes are backward-compatible bug fixes.

• 修复（P0）: 自动请求 effect 不再依赖 defaultParams，消除内联构造未重写 == 的参数对象（如 HttpRequestConfig）导致的“请求 -> 重建 -> 再请求”无限循环；参数变化触发刷新请改用 refreshDeps。 BREAKING CHANGE: 若此前依赖“defaultParams 每次变化都会重新请求”这一错误行为，需改用 refreshDeps: [yourParam] 显式声明。

• 修复（P0）: 缓存去重的 pending 清理改用 then + onError，消除失败请求触发的 Zone 未处理异步异常（此前会向全局错误处理器上报假崩溃）。

• 新增（P0）: HttpRequestConfig 增加 cancelToken 字段；useRequest 会自动注入内部令牌，cancel() 现在能真正中断底层 Dio 请求（用户显式设置的令牌优先）。

• 修复（P0）: Riverpod UseRequestBuilder 的 options 更新现在正确传播，切换 ready、变更 refreshDeps、更新回调闭包均生效。

• 修复（P1）: refreshDeps 触发刷新时优先复用最近一次请求参数（对齐 ahooks refresh 语义），最近参数不可用时回退 defaultParams；Hook 版与 Riverpod 版行为统一。

• 修复（P1）: refresh() / loadMore() 在从未请求过时不再同步抛出 StateError，统一转为被吞掉的 Future.error。

• 修复（P1）: cancel() 现在同时取消排队中的防抖 / 节流调用。

• 修复（P1）: 请求失败不再清除仍在 cacheTime 有效期内的缓存条目（SWR 语义：后台再验证失败保留旧数据）。 BREAKING CHANGE: 若此前依赖“请求失败即清缓存”这一行为强制下次拿到全新数据，需改为显式调用 clearCacheEntry。

• 修复（P1）: 轮询、聚焦刷新、重连刷新的回调改经 ref 调用最新一帧实现，消除 stale closure（此前 onSuccess / dataMerger 等未列入 effect keys 的配置变化后轮询仍用旧值）。

• 修复（P1）: Throttler 的 maxWait 立即执行分支补齐清理，消除事件循环繁忙时排队 trailing 被双重执行的问题；排队等待者共享本次执行结果。

• 修复（P1）: TData 可空时 service 合法返回 null 现在会清空 data，不再被旧数据吞掉。

• 修复（P2）: fresh 缓存命中时补发观察者 onFinally 事件，保证 onRequest / onFinally 打点配对（用户回调仍与 ahooks 一致不触发）。

• 新增（P2）: HttpRequestConfig 实现值语义 == / hashCode（回调、extra、cancelToken 不参与比较），修复 keepPreviousData=false 下相同参数重复请求导致的数据闪空。 BREAKING CHANGE: 若此前将 HttpRequestConfig 实例放入 Set / 用作 Map key 并依赖对象恒等语义，比较结果会变化。

• 重构（P2）: Web 可见性监听从已弃用的 dart:html 迁移到 package:web + dart:js_interop，兼容 WASM 编译目标（新增依赖 web: ^1.1.1）。

• 变更（P2）: UseRequestBuilder 改为普通 StatefulWidget，不再要求包裹 ProviderScope；UseRequestMixin.initUseRequest 的 ref 参数从未被使用，标记为弃用并改为可选。

• 变更（P2）: Hook 版 isPolling 改为直接派生自轮询控制器状态，移除可能脱节的影子布尔。

• 文档（P2）: fetchKey 文档明确与 ahooks v2 的语义差异（单份状态归属最新 key，非最新 key 的结果被丢弃）。

• 测试: 新增 P0 回归测试 8 条、P1 / P2 回归测试 11 条。

• Fixed (P0): The auto-request effect no longer depends on defaultParams, removing the infinite "request -> rebuild -> request again" loop caused by inline param objects without custom == such as HttpRequestConfig. Use refreshDeps when param changes should trigger refreshes. BREAKING CHANGE: If your code relied on the previous incorrect behavior where changes to defaultParams re-triggered requests automatically, switch to an explicit refreshDeps: [yourParam].

• Fixed (P0): Pending-cache cleanup now uses then + onError, preventing failed requests from producing unhandled async exceptions in the Zone that previously surfaced as false crashes to global error handlers.

• Added (P0): HttpRequestConfig now supports cancelToken. useRequest injects its internal token automatically, and cancel() can now abort the underlying Dio request for real, while still respecting user-provided tokens first.

• Fixed (P0): Option updates now propagate correctly through Riverpod UseRequestBuilder, so toggling ready, changing refreshDeps, and replacing callback closures all take effect.

• Fixed (P1): Refreshes triggered by refreshDeps now prefer the most recent request params to match ahooks refresh semantics, and fall back to defaultParams only when the latest params are unavailable. Hook and Riverpod behavior is now aligned.

• Fixed (P1): refresh() and loadMore() no longer throw synchronous StateErrors when nothing has ever run. They now consistently surface as swallowed Future.errors.

• Fixed (P1): cancel() now also cancels queued debounce and throttle executions.

• Fixed (P1): Failed requests no longer clear cache entries that are still valid under cacheTime, following SWR semantics where stale data is retained if background revalidation fails. BREAKING CHANGE: If your code relied on "failure clears cache immediately" to force the next read to fetch fresh data, call clearCacheEntry explicitly instead.

• Fixed (P1): Polling, focus refresh, and reconnect refresh callbacks now invoke the latest frame via refs, removing stale-closure issues where polling could keep using outdated values after changes to options like onSuccess or dataMerger that were not part of effect keys.

• Fixed (P1): The immediate-execution branch of Throttler.maxWait now performs full cleanup, preventing queued trailing calls from running twice under a busy event loop. Waiting callers now share the same execution result.

• Fixed (P1): When TData is nullable and the service legitimately returns null, data is now cleared instead of leaving stale data visible.

• Fixed (P2): Observer onFinally is now emitted for fresh-cache hits as well, so onRequest and onFinally telemetry stays paired. User callbacks still remain consistent with ahooks and are not fired for cache hits.

• Added (P2): HttpRequestConfig now implements value-based == and hashCode excluding callbacks, extra, and cancelToken, fixing data flicker when identical params are requested repeatedly with keepPreviousData=false. BREAKING CHANGE: If you stored HttpRequestConfig instances in a Set or used them as Map keys while relying on identity semantics, comparisons will now behave differently.

• Refactor (P2): Web visibility handling moved from deprecated dart:html to package:web plus dart:js_interop, making it compatible with WASM compilation targets (new dependency: web: ^1.1.1).

• Changed (P2): UseRequestBuilder is now a regular StatefulWidget and no longer requires wrapping in ProviderScope. The unused ref argument of UseRequestMixin.initUseRequest is now deprecated and optional.

• Changed (P2): The Hook implementation of isPolling now derives directly from the polling controller state, removing the previous shadow boolean that could drift out of sync.

• Docs (P2): Clarified in the fetchKey docs how this library differs from ahooks v2: state belongs to the latest key only, and results from stale keys are discarded.

• Tests: Added 8 new P0 regression tests and 11 new P1 / P2 regression tests.

0.3.5

• 示例：新增 Options 与频率控制进阶示例模块，完善演示入口与交互链路。
• 修复：修正示例页在不同宽度下的多处布局溢出问题（标题区、操作区、下拉框区域）。
• 测试：增强示例 UI 交互测试稳定性，补齐可见性处理与网络 Mock，确保关键交互可稳定回归。
• 文档：补充 GitHub Pages 自动部署流程与 LLM Agent 接入说明，支持接入方项目最小模块试点改造。

0.3.4

• 修复：解决轮询在 pausePollingOnError 后进入暂停态时无法被 pollingRetryInterval 正确恢复的问题（Hook 与 Riverpod 两条路径均已修复）。
• 测试：新增 UseRequestOptions 行为覆盖测试，补齐 pollingWhenHidden、pausePollingOnError、pollingRetryInterval、debounceLeading/trailing/maxWait、throttleLeading/trailing、retryExponential、onRetryAttempt、connectTimeout/receiveTimeout/sendTimeout、loadingDelay 等关键配置项回归。
• 文档：README 顶部补充 GitHub 仓库地址，便于从 pub.dev 直接跳转源码与 Issue。

0.3.3

• 修复：为 UseRequestObserver 全部回调增加安全隔离，观察者异常不再影响请求主流程。
• 修复：mutate((_) => null) 时同步清理对应 RequestCache，避免状态与缓存不一致。
• 修复：UseRequestBuilder.didUpdateWidget 改为语义比较 options，避免等价配置的无效更新。
• 修复：RequestCache.get<T> 在类型不匹配时不再刷新 LRU 顺序。
• 新增：PaginationHelpers.pageParams 支持 shouldReset，可在筛选/刷新场景重置页码计数。
• 示例：重构 example/lib/main.dart 为由易到难的渐进式教学示例（GitHub API、Record 解构、hooks 数据流转）。
• 测试：新增并补强回归测试，覆盖 observer 异常、onBefore 异常、mutate(null) 缓存同步、LRU 顺序与 options 等价判定。

0.3.2

• 新增：UseRequestNotifier 支持 updateOptions()，可在运行时更新防抖/节流/轮询间隔等参数，不销毁 Notifier、不丢失请求状态。
• 新增：UseRequestBuilder 在仅 options 变化时调用 updateOptions()，不再销毁重建，保留已有数据与轮询状态。
• 新增：UseRequestMixin 同步暴露 updateOptions() 便捷方法。
• 测试：新增 updateOptions 状态保持测试。

0.3.1

• BREAKING: UseRequestOptions 新增 == / hashCode（基于标量配置字段），解决 didUpdateWidget 中 inline 构造导致无限重建。
• BREAKING: mutate() 现在同步写入全局 RequestCache，共享同一 cacheKey 的组件可见乐观更新。
• Fix: RequestCache.get<T> 新增类型安全守卫，类型不匹配时返回 null 而非运行时崩溃。
• Fix: Hook 版 ready 从 false→true 时，若有待执行的 refreshDeps 回放，跳过自动请求避免同帧重复触发。
• Feat: 新增 initialData 选项，支持 SSR/预加载数据注入，首帧即可渲染。
• Feat: 新增 keepPreviousData 选项，参数变化时保留旧数据直到新数据到达，避免 UI 闪白。
• Feat: 新增 UseRequestObserver 全局观察者机制，支持日志记录、请求监控、调试。
• Feat: CacheCoordinator 无 staleTime 时始终后台刷新（SWR 语义完善）。
• Test: 新增 32 个测试用例，覆盖缓存 LRU/类型安全、Options 等价性、Observer、状态机流转、错误路径、分页轮询。

0.3.0

• Fix: RequestCache 新增 LRU 淘汰策略（默认最大 256 条），防止长时间运行导致内存无限增长（Bug 10）。
• Fix: CacheCoordinator 修正 SWR 语义——只配 cacheTime 不配 staleTime 时，缓存始终后台刷新（Bug 13）。
• Fix: 轮询与分页（loadMoreParams）同时使用时，轮询优先使用 defaultParams 刷新首页，避免覆盖已累积的分页数据（Bug 15）。
• Feat: RequestCache.removeWhere() 支持按模式批量清除缓存（如 key.startsWith('user-')）。
• Fix: UseRequestState.copyWith 新增 clearParams/clearHasMore 标志位（Bug 1）。
• Fix: defaultParams 仅在首次 build 时初始化，不再覆盖用户手动参数（Bug 2）。
• Fix: PaginationHelpers.pageParams 通过内部计数器正确追踪页码（Bug 3）。
• Fix: UseRequestMixin.initUseRequest 新增 onStateChange 回调以触发宿主 Widget 重建（Bug 4）。
• Fix: loadMore() 在 hasMore == false 时拒绝发起新请求（Bug 5）。
• Fix: 所有生命周期回调（onSuccess/onError/onFinally）包裹 try-catch，异常不再中断请求流程（Bug 6）。
• Fix: bindPendingRequest 补充 onSuccess/onError/onFinally 回调（Bug 7）。
• Fix: UseRequestBuilder 引入 serviceKey 机制，避免闭包引用变化导致无限重建（Bug 8）。
• Fix: refreshAsync 安全类型检查，非空 TParams 场景下回退到 defaultParams（Bug 9）。
• Fix: cancel() 取消所有 key 的进行中请求，而非仅最后一个（Bug 11）。
• Fix: AppFocusManager 不再将 inactive 状态视为 blur（Bug 12）。
• Docs: onBefore 在 loadMore 场景下不触发的行为已补充文档说明（Bug 14）。

0.0.13

• Fix: clear both loading and loadingMore on cancel, and make Hook/Riverpod consistently support no-params requests across auto-run, refreshDeps, polling, focus refresh, and reconnect refresh.
• Fix: remove duplicate Riverpod auto requests when refreshDeps and ready replay overlap, and let UseRequestBuilder / UseRequestMixin render notifier state on the first frame instead of a synthetic empty state.
• Fix: harden scheduler and cache utilities, including correct Debouncer.maxWait, non-cancelling leading debounce futures, correct Throttler behavior for leading:false, cancellable retry backoff, pending-cache overwrite safety, and UseRequestOptions.copyWith() explicit null clearing.
• Test: add Hook, Riverpod, debounce, throttle, retry, cache, and options contract tests for the above edge cases.

0.0.12

• Fix: hydrate fresh cache into Hook and Riverpod state on the first frame, so pages that remount can render cached data immediately instead of flashing default values before auto requests run.

0.0.11

• Fix: pending cache subscribers now receive the in-flight result in both Hook and Riverpod implementations, instead of reusing the Future without updating local state.

0.0.10

• Fix: refreshDeps now triggers auto refresh even when last/default params is null (no-params service), aligning with ahooks.

0.0.9

• Fix: refreshDeps change detection now survives list reuse/mutation by hashing deps and copying snapshots.
• Fix: refreshDeps changes while ready=false are replayed once ready=true (Hook + Riverpod).
• Fix: Riverpod refreshDeps initial trigger actually fires (no pre-seeded deps).

0.0.8

• Fix: allow refresh() to reuse a previous null params entry instead of throwing (both Hook and Riverpod).

0.0.7

• Example: add an inline Quick Start snippet in example/lib/main.dart so pub.dev can render a meaningful Example tab.

0.0.6

• Align docs with implementation: make UseRequestOptions timeouts effective when TParams=HttpRequestConfig.
• Add uploadFile / downloadFile aliases to DioHttpAdapter to match README examples.
• Unify ready semantics between Hook and Riverpod (ready=false gates auto/polling, manual run still works).
• Fix example widget test to reflect the current demo app.

0.0.5

• Optimize auto-request logic: allow auto-trigger when defaultParams is null (provided manual is false).
• Docs: add minimalist usage example (Zero Configuration).

0.0.4

• Reformat source to satisfy dart format and static analysis.
• Upgrade dependencies to latest supported versions (flutter_hooks, flutter_riverpod), keeping Riverpod v3 compatibility via legacy API.

0.0.2

• Implement active-key single-state semantics for fetchKey (stale key results no longer update state).
• Fix Debouncer so new calls cancel previous pending futures instead of leaving them hanging.
• Align Hook and Riverpod behaviors (retry callbacks, polling control, cancel semantics, cache consistency).
• Improve polling lifecycle: ready/manual gating, visibility pause/resume on Web, and optional pollingRetryInterval auto-restore.
• Rework DioHttpAdapter.request to support per-request timeouts and merged headers/query.
• Enhance example demos (interactive polling controls, sidebar scroll fix, JSONPlaceholder PUT/PATCH safe id).
• Docs/metadata: add bilingual README, pub badges, topics, and Flutter CI workflow.

0.0.1

• Initial release.