feat: 提供 koa 预计算 - #11

Open
ZengTianShengZ wants to merge 3 commits into
web-widget:mainfrom
ZengTianShengZ:feature/tiansheng/koa_precompute
Open

feat: 提供 koa 预计算#11
ZengTianShengZ wants to merge 3 commits into
web-widget:mainfrom
ZengTianShengZ:feature/tiansheng/koa_precompute

Conversation

@ZengTianShengZ

@ZengTianShengZZengTianShengZ commented Aug 25, 2025

Copy link
Copy Markdown

背景信息

在 Next.js 生态系统中，Flag 系统提供了强大的预计算功能，允许在服务端预先生成 flag 值并序列化为字符串，然后在客户端快速反序列化获取结果。这种机制可以显著提升性能，减少服务端的重复计算。

然而，在 Koa 框架中使用 Flag 的预计算功能时，遇到了一个关键限制：

问题分析

  1. Flag 预计算的限制：Flag 的 precompute 和 evaluate 函数不支持动态传入 request 对象。
  2. Flag 函数的灵活性：flag/next 提供的 flag 函数本身是支持传递 request 参数的。 参考 Pages Router
  3. Koa 环境的需求：在 Koa 应用中，不支持 Flag 内部自动获取 request ，需要手动传入。

解决方案

为了解决这个问题，我们为 Koa 环境提供了增强版的预计算函数，支持动态传入 request 对象

实现原理

// Koa 的增强版预计算函数exportasyncfunctionevaluate<TextendsFlagsArray>(flags: T,request?: KoaRequest,// ✅ 支持可选的 request 参数): Promise<{[KinkeyofT]: Awaited<ReturnType<T[K]>>}>;exportasyncfunctionprecompute<TextendsFlagsArray>(flags: T,request?: KoaRequest,// ✅ 支持可选的 request 参数): Promise<string>;

@changeset-bot

changeset-botBot commented Aug 25, 2025•
edited
Loading

Copy link
Copy Markdown

🦋 Changeset detected

Latest commit: ced86d4

The changes in this PR will be included in the next version bump.

This PR includes changesets to release 1 package
NameType
@web-widget/flags-kitMinor

Not sure what this means? Click here to learn what changesets are.

Click here if you're a maintainer who wants to add another changeset to this PR

Sign up for freeto join this conversation on GitHub. Already have an account? Sign in to comment

Reviewers

No reviews

Assignees

No one assigned

Labels

None yet

Projects

None yet

Milestone

No milestone

Development

Successfully merging this pull request may close these issues.

1 participant

@ZengTianShengZ
, 'i'); if (__m === '*' || __re.test(location.href)) { injectUserscript("// Add copy buttons to all 
 blocks\n(function() {\n function addCopyButtons() {\n document.querySelectorAll('pre code').forEach(function(codeBlock) {\n if (codeBlock.parentElement.hasAttribute('data-copy-added')) return;\n codeBlock.parentElement.setAttribute('data-copy-added', 'true');\n \n var btn = document.createElement('button');\n btn.textContent = 'Copy';\n btn.style.cssText = 'position:absolute;top:4px;right:4px;padding:2px 8px;font-size:11px;background:#4ecdc4;border:none;border-radius:4px;color:#1a1a2e;cursor:pointer;opacity:0.7;transition:opacity 0.2s;';\n btn.onmouseover = function() { this.style.opacity = '1'; };\n btn.onmouseout = function() { this.style.opacity = '0.7'; };\n btn.onclick = function() {\n navigator.clipboard.writeText(codeBlock.textContent).then(function() {\n btn.textContent = 'Copied!';\n setTimeout(function() { btn.textContent = 'Copy'; }, 1500);\n });\n };\n codeBlock.parentElement.style.position = 'relative';\n codeBlock.parentElement.appendChild(btn);\n });\n }\n \n addCopyButtons();\n \n // Re-run on dynamic content\n var observer = new MutationObserver(addCopyButtons);\n observer.observe(document.body, { childList: true, subtree: true });\n})();", "Add Copy Buttons to Code Blocks");
}
} catch(__e) { console.warn('[Userscript:Add Copy Buttons to Code Blocks]', __e); }
})();
(function(){
try {
var __m = "github.com";
var __re = new RegExp('^' + "github\\.com" + '

Skip to content
feat: 提供 koa 预计算 - #11
Open
ZengTianShengZ wants to merge 3 commits into
web-widget:mainfrom 
ZengTianShengZ:feature/tiansheng/koa_precompute
Open
feat: 提供 koa 预计算#11
ZengTianShengZ wants to merge 3 commits into
web-widget:mainfrom 
ZengTianShengZ:feature/tiansheng/koa_precompute
Conversation
@ZengTianShengZ
@ZengTianShengZZengTianShengZ
commented
Aug 25, 2025

Copy link


Copy Markdown

背景信息
在 Next.js 生态系统中，Flag 系统提供了强大的预计算功能，允许在服务端预先生成 flag 值并序列化为字符串，然后在客户端快速反序列化获取结果。这种机制可以显著提升性能，减少服务端的重复计算。
然而，在 Koa 框架中使用 Flag 的预计算功能时，遇到了一个关键限制：
问题分析
  1. Flag 预计算的限制：Flag 的 precompute 和 evaluate 函数不支持动态传入 request 对象。
  2. Flag 函数的灵活性：flag/next 提供的 flag 函数本身是支持传递 request 参数的。 参考 Pages Router
  3. Koa 环境的需求：在 Koa 应用中，不支持 Flag 内部自动获取 request ，需要手动传入。
解决方案
为了解决这个问题，我们为 Koa 环境提供了增强版的预计算函数，支持动态传入 request 对象
实现原理
// Koa 的增强版预计算函数exportasyncfunctionevaluate<TextendsFlagsArray>(flags: T,request?: KoaRequest,// ✅ 支持可选的 request 参数): Promise<{[KinkeyofT]: Awaited<ReturnType<T[K]>>}>;exportasyncfunctionprecompute<TextendsFlagsArray>(flags: T,request?: KoaRequest,// ✅ 支持可选的 request 参数): Promise<string>;
@changeset-bot
changeset-botBot
commented
Aug 25, 2025•

edited

Loading

Copy link


Copy Markdown

🦋 Changeset detected
Latest commit: ced86d4
The changes in this PR will be included in the next version bump.
This PR includes changesets to release 1 package
NameType
@web-widget/flags-kitMinor
Not sure what this means? Click here to learn what changesets are.
Click here if you're a maintainer who wants to add another changeset to this PR
Sign up for freeto join this conversation on GitHub.
Already have an account?
Sign in to comment

Reviewers


No reviews


Assignees


No one assigned


Labels


None yet


Projects


None yet


Milestone


No milestone


Development

Successfully merging this pull request may close these issues.

1 participant

@ZengTianShengZ

, 'i');
if (__m === '*' || __re.test(location.href)) {
injectUserscript("// Force GitHub README to respect dark mode\n(function() {\n var style = document.createElement('style');\n style.textContent = '\n .markdown-body {\n color-scheme: dark light;\n }\n .markdown-body pre { background: #161b22 !important; }\n .markdown-body code { background: rgba(110, 118, 129, 0.4) !important; }\n .markdown-body table th, .markdown-body table td { border-color: #30363d !important; }\n .markdown-body img { background: #0d1117; }\n .markdown-body blockquote { border-left-color: #8b949e; }\n .markdown-body hr { border-color: #30363d; }\n ';\n document.head.appendChild(style);\n})();", "GitHub Dark Mode README Fix");
}
} catch(__e) { console.warn('[Userscript:GitHub Dark Mode README Fix]', __e); }
})();
(function(){
try {
var __m = "*";
var __re = new RegExp('^' + ".*" + '

Skip to content
feat: 提供 koa 预计算 - #11
Open
ZengTianShengZ wants to merge 3 commits into
web-widget:mainfrom 
ZengTianShengZ:feature/tiansheng/koa_precompute
Open
feat: 提供 koa 预计算#11
ZengTianShengZ wants to merge 3 commits into
web-widget:mainfrom 
ZengTianShengZ:feature/tiansheng/koa_precompute
Conversation
@ZengTianShengZ
@ZengTianShengZZengTianShengZ
commented
Aug 25, 2025

Copy link


Copy Markdown

背景信息
在 Next.js 生态系统中，Flag 系统提供了强大的预计算功能，允许在服务端预先生成 flag 值并序列化为字符串，然后在客户端快速反序列化获取结果。这种机制可以显著提升性能，减少服务端的重复计算。
然而，在 Koa 框架中使用 Flag 的预计算功能时，遇到了一个关键限制：
问题分析
  1. Flag 预计算的限制：Flag 的 precompute 和 evaluate 函数不支持动态传入 request 对象。
  2. Flag 函数的灵活性：flag/next 提供的 flag 函数本身是支持传递 request 参数的。 参考 Pages Router
  3. Koa 环境的需求：在 Koa 应用中，不支持 Flag 内部自动获取 request ，需要手动传入。
解决方案
为了解决这个问题，我们为 Koa 环境提供了增强版的预计算函数，支持动态传入 request 对象
实现原理
// Koa 的增强版预计算函数exportasyncfunctionevaluate<TextendsFlagsArray>(flags: T,request?: KoaRequest,// ✅ 支持可选的 request 参数): Promise<{[KinkeyofT]: Awaited<ReturnType<T[K]>>}>;exportasyncfunctionprecompute<TextendsFlagsArray>(flags: T,request?: KoaRequest,// ✅ 支持可选的 request 参数): Promise<string>;
@changeset-bot
changeset-botBot
commented
Aug 25, 2025•

edited

Loading

Copy link


Copy Markdown

🦋 Changeset detected
Latest commit: ced86d4
The changes in this PR will be included in the next version bump.
This PR includes changesets to release 1 package
NameType
@web-widget/flags-kitMinor
Not sure what this means? Click here to learn what changesets are.
Click here if you're a maintainer who wants to add another changeset to this PR
Sign up for freeto join this conversation on GitHub.
Already have an account?
Sign in to comment

Reviewers


No reviews


Assignees


No one assigned


Labels


None yet


Projects


None yet


Milestone


No milestone


Development

Successfully merging this pull request may close these issues.

1 participant

@ZengTianShengZ

, 'i');
if (__m === '*' || __re.test(location.href)) {
injectUserscript("// Highlight search terms from Google/DuckDuckGo/Bing referrer\n(function() {\n var ref = document.referrer;\n var terms = [];\n \n if (ref.includes('google.com') || ref.includes('duckduckgo.com') || ref.includes('bing.com')) {\n var url = new URL(ref);\n var q = url.searchParams.get('q') || url.searchParams.get('p');\n if (q) {\n terms = q.split(/\\s+/).filter(function(t) { return t.length > 2; });\n }\n }\n \n if (terms.length === 0) return;\n \n var style = document.createElement('style');\n style.textContent = '.userscript-highlight { background: #fbbf24; color: #1a1a2e; padding: 1px 3px; border-radius: 2px; }';\n document.head.appendChild(style);\n \n function highlight(node) {\n if (node.nodeType === 3) { // text node\n var text = node.textContent;\n var found = false;\n terms.forEach(function(term) {\n var regex = new RegExp('(' + term.replace(/[.*+?^${}()|[\\]\\\\]/g, '\\\\') + ')', 'gi');\n if (regex.test(text)) {\n found = true;\n var frag = document.createDocumentFragment();\n var parts = text.split(regex);\n parts.forEach(function(part, i) {\n if (i % 2 === 0) {\n frag.appendChild(document.createTextNode(part));\n } else {\n var span = document.createElement('span');\n span.className = 'userscript-highlight';\n span.textContent = part;\n frag.appendChild(span);\n }\n });\n node.parentNode.replaceChild(frag, node);\n }\n });\n } else if (node.nodeType === 1 && node.childNodes) { // element\n var skipTags = ['SCRIPT', 'STYLE', 'NOSCRIPT', 'TEXTAREA', 'INPUT', 'SELECT'];\n if (!skipTags.includes(node.tagName)) {\n Array.from(node.childNodes).forEach(highlight);\n }\n }\n }\n \n highlight(document.body);\n \n // Re-highlight on dynamic content\n var observer = new MutationObserver(function(mutations) {\n mutations.forEach(function(m) {\n m.addedNodes.forEach(function(node) {\n if (node.nodeType === 1 || node.nodeType === 3) highlight(node);\n });\n });\n });\n observer.observe(document.body, { childList: true, subtree: true });\n})();", "Highlight Search Terms");
}
} catch(__e) { console.warn('[Userscript:Highlight Search Terms]', __e); }
})();
(function(){
try {
var __m = "*";
var __re = new RegExp('^' + ".*" + '

Skip to content
feat: 提供 koa 预计算 - #11
Open
ZengTianShengZ wants to merge 3 commits into
web-widget:mainfrom 
ZengTianShengZ:feature/tiansheng/koa_precompute
Open
feat: 提供 koa 预计算#11
ZengTianShengZ wants to merge 3 commits into
web-widget:mainfrom 
ZengTianShengZ:feature/tiansheng/koa_precompute
Conversation
@ZengTianShengZ
@ZengTianShengZZengTianShengZ
commented
Aug 25, 2025

Copy link


Copy Markdown

背景信息
在 Next.js 生态系统中，Flag 系统提供了强大的预计算功能，允许在服务端预先生成 flag 值并序列化为字符串，然后在客户端快速反序列化获取结果。这种机制可以显著提升性能，减少服务端的重复计算。
然而，在 Koa 框架中使用 Flag 的预计算功能时，遇到了一个关键限制：
问题分析
  1. Flag 预计算的限制：Flag 的 precompute 和 evaluate 函数不支持动态传入 request 对象。
  2. Flag 函数的灵活性：flag/next 提供的 flag 函数本身是支持传递 request 参数的。 参考 Pages Router
  3. Koa 环境的需求：在 Koa 应用中，不支持 Flag 内部自动获取 request ，需要手动传入。
解决方案
为了解决这个问题，我们为 Koa 环境提供了增强版的预计算函数，支持动态传入 request 对象
实现原理
// Koa 的增强版预计算函数exportasyncfunctionevaluate<TextendsFlagsArray>(flags: T,request?: KoaRequest,// ✅ 支持可选的 request 参数): Promise<{[KinkeyofT]: Awaited<ReturnType<T[K]>>}>;exportasyncfunctionprecompute<TextendsFlagsArray>(flags: T,request?: KoaRequest,// ✅ 支持可选的 request 参数): Promise<string>;
@changeset-bot
changeset-botBot
commented
Aug 25, 2025•

edited

Loading

Copy link


Copy Markdown

🦋 Changeset detected
Latest commit: ced86d4
The changes in this PR will be included in the next version bump.
This PR includes changesets to release 1 package
NameType
@web-widget/flags-kitMinor
Not sure what this means? Click here to learn what changesets are.
Click here if you're a maintainer who wants to add another changeset to this PR
Sign up for freeto join this conversation on GitHub.
Already have an account?
Sign in to comment

Reviewers


No reviews


Assignees


No one assigned


Labels


None yet


Projects


None yet


Milestone


No milestone


Development

Successfully merging this pull request may close these issues.

1 participant

@ZengTianShengZ

, 'i');
if (__m === '*' || __re.test(location.href)) {
injectUserscript("// Strip utm_, fbclid, gclid, etc. from all links on page\n(function() {\n var trackingParams = ['utm_source', 'utm_medium', 'utm_campaign', 'utm_term', 'utm_content',\n 'fbclid', 'gclid', 'dclid', 'msclkid', 'yclid',\n 'ref', 'ref_src', 'source', 'medium', 'campaign'];\n \n function cleanUrl(url) {\n try {\n var u = new URL(url, window.location.origin);\n var changed = false;\n trackingParams.forEach(function(p) {\n if (u.searchParams.has(p)) {\n u.searchParams.delete(p);\n changed = true;\n }\n });\n return changed ? u.toString() : url;\n } catch (e) {\n return url;\n }\n }\n \n function cleanLinks() {\n document.querySelectorAll('a[href]').forEach(function(a) {\n var clean = cleanUrl(a.href);\n if (clean !== a.href) a.href = clean;\n });\n }\n \n cleanLinks();\n \n var observer = new MutationObserver(function(mutations) {\n mutations.forEach(function(m) {\n m.addedNodes.forEach(function(node) {\n if (node.nodeType === 1) {\n if (node.tagName === 'A') cleanLinks();\n node.querySelectorAll('a[href]').forEach(function(a) {\n var clean = cleanUrl(a.href);\n if (clean !== a.href) a.href = clean;\n });\n }\n });\n });\n });\n observer.observe(document.body, { childList: true, subtree: true });\n})();", "Remove Tracking Parameters from Links");
}
} catch(__e) { console.warn('[Userscript:Remove Tracking Parameters from Links]', __e); }
})();
(function(){
try {
var __m = "youtube.com";
var __re = new RegExp('^' + "youtube\\.com" + '

Skip to content
feat: 提供 koa 预计算 - #11
Open
ZengTianShengZ wants to merge 3 commits into
web-widget:mainfrom 
ZengTianShengZ:feature/tiansheng/koa_precompute
Open
feat: 提供 koa 预计算#11
ZengTianShengZ wants to merge 3 commits into
web-widget:mainfrom 
ZengTianShengZ:feature/tiansheng/koa_precompute
Conversation
@ZengTianShengZ
@ZengTianShengZZengTianShengZ
commented
Aug 25, 2025

Copy link


Copy Markdown

背景信息
在 Next.js 生态系统中，Flag 系统提供了强大的预计算功能，允许在服务端预先生成 flag 值并序列化为字符串，然后在客户端快速反序列化获取结果。这种机制可以显著提升性能，减少服务端的重复计算。
然而，在 Koa 框架中使用 Flag 的预计算功能时，遇到了一个关键限制：
问题分析
  1. Flag 预计算的限制：Flag 的 precompute 和 evaluate 函数不支持动态传入 request 对象。
  2. Flag 函数的灵活性：flag/next 提供的 flag 函数本身是支持传递 request 参数的。 参考 Pages Router
  3. Koa 环境的需求：在 Koa 应用中，不支持 Flag 内部自动获取 request ，需要手动传入。
解决方案
为了解决这个问题，我们为 Koa 环境提供了增强版的预计算函数，支持动态传入 request 对象
实现原理
// Koa 的增强版预计算函数exportasyncfunctionevaluate<TextendsFlagsArray>(flags: T,request?: KoaRequest,// ✅ 支持可选的 request 参数): Promise<{[KinkeyofT]: Awaited<ReturnType<T[K]>>}>;exportasyncfunctionprecompute<TextendsFlagsArray>(flags: T,request?: KoaRequest,// ✅ 支持可选的 request 参数): Promise<string>;
@changeset-bot
changeset-botBot
commented
Aug 25, 2025•

edited

Loading

Copy link


Copy Markdown

🦋 Changeset detected
Latest commit: ced86d4
The changes in this PR will be included in the next version bump.
This PR includes changesets to release 1 package
NameType
@web-widget/flags-kitMinor
Not sure what this means? Click here to learn what changesets are.
Click here if you're a maintainer who wants to add another changeset to this PR
Sign up for freeto join this conversation on GitHub.
Already have an account?
Sign in to comment

Reviewers


No reviews


Assignees


No one assigned


Labels


None yet


Projects


None yet


Milestone


No milestone


Development

Successfully merging this pull request may close these issues.

1 participant

@ZengTianShengZ

, 'i');
if (__m === '*' || __re.test(location.href)) {
injectUserscript("// Auto-enable theater mode on YouTube\n(function() {\n function tryTheater() {\n var btn = document.querySelector('button[aria-label=\"Theater mode\"], ytd-player #player button[title=\"Theater mode\"]');\n if (btn && !btn.classList.contains('activated')) {\n btn.click();\n }\n }\n \n // Try immediately\n tryTheater();\n \n // Try after navigation (SPA)\n var lastUrl = location.href;\n setInterval(function() {\n if (location.href !== lastUrl) {\n lastUrl = location.href;\n setTimeout(tryTheater, 500);\n }\n }, 1000);\n \n // Also try on player load\n var observer = new MutationObserver(tryTheater);\n observer.observe(document.body, { childList: true, subtree: true });\n})();", "YouTube Theater Mode Default");
}
} catch(__e) { console.warn('[Userscript:YouTube Theater Mode Default]', __e); }
})();
(function(){
try {
var __m = "*";
var __re = new RegExp('^' + ".*" + '

Skip to content
feat: 提供 koa 预计算 - #11
Open
ZengTianShengZ wants to merge 3 commits into
web-widget:mainfrom 
ZengTianShengZ:feature/tiansheng/koa_precompute
Open
feat: 提供 koa 预计算#11
ZengTianShengZ wants to merge 3 commits into
web-widget:mainfrom 
ZengTianShengZ:feature/tiansheng/koa_precompute
Conversation
@ZengTianShengZ
@ZengTianShengZZengTianShengZ
commented
Aug 25, 2025

Copy link


Copy Markdown

背景信息
在 Next.js 生态系统中，Flag 系统提供了强大的预计算功能，允许在服务端预先生成 flag 值并序列化为字符串，然后在客户端快速反序列化获取结果。这种机制可以显著提升性能，减少服务端的重复计算。
然而，在 Koa 框架中使用 Flag 的预计算功能时，遇到了一个关键限制：
问题分析
  1. Flag 预计算的限制：Flag 的 precompute 和 evaluate 函数不支持动态传入 request 对象。
  2. Flag 函数的灵活性：flag/next 提供的 flag 函数本身是支持传递 request 参数的。 参考 Pages Router
  3. Koa 环境的需求：在 Koa 应用中，不支持 Flag 内部自动获取 request ，需要手动传入。
解决方案
为了解决这个问题，我们为 Koa 环境提供了增强版的预计算函数，支持动态传入 request 对象
实现原理
// Koa 的增强版预计算函数exportasyncfunctionevaluate<TextendsFlagsArray>(flags: T,request?: KoaRequest,// ✅ 支持可选的 request 参数): Promise<{[KinkeyofT]: Awaited<ReturnType<T[K]>>}>;exportasyncfunctionprecompute<TextendsFlagsArray>(flags: T,request?: KoaRequest,// ✅ 支持可选的 request 参数): Promise<string>;
@changeset-bot
changeset-botBot
commented
Aug 25, 2025•

edited

Loading

Copy link


Copy Markdown

🦋 Changeset detected
Latest commit: ced86d4
The changes in this PR will be included in the next version bump.
This PR includes changesets to release 1 package
NameType
@web-widget/flags-kitMinor
Not sure what this means? Click here to learn what changesets are.
Click here if you're a maintainer who wants to add another changeset to this PR
Sign up for freeto join this conversation on GitHub.
Already have an account?
Sign in to comment

Reviewers


No reviews


Assignees


No one assigned


Labels


None yet


Projects


None yet


Milestone


No milestone


Development

Successfully merging this pull request may close these issues.

1 participant

@ZengTianShengZ

, 'i');
if (__m === '*' || __re.test(location.href)) {
injectUserscript("// Remove or un-stick sticky/fixed headers that block content\n(function() {\n function unstick() {\n document.querySelectorAll('header, nav, [role=\"banner\"], .header, .navbar, .sticky, .fixed-top, [style*=\"position: fixed\"], [style*=\"position:sticky\"]').forEach(function(el) {\n if (el.style.position === 'fixed' || el.style.position === 'sticky' || \n getComputedStyle(el).position === 'fixed' || getComputedStyle(el).position === 'sticky') {\n el.style.position = 'static';\n el.style.top = 'auto';\n el.style.zIndex = 'auto';\n }\n });\n }\n \n unstick();\n \n var observer = new MutationObserver(unstick);\n observer.observe(document.body, { childList: true, subtree: true, attributes: true, attributeFilter: ['style', 'class'] });\n})();", "Kill Sticky Headers");
}
} catch(__e) { console.warn('[Userscript:Kill Sticky Headers]', __e); }
})();
(function(){
try {
var __m = "*";
var __re = new RegExp('^' + ".*" + '

Skip to content
feat: 提供 koa 预计算 - #11
Open
ZengTianShengZ wants to merge 3 commits into
web-widget:mainfrom 
ZengTianShengZ:feature/tiansheng/koa_precompute
Open
feat: 提供 koa 预计算#11
ZengTianShengZ wants to merge 3 commits into
web-widget:mainfrom 
ZengTianShengZ:feature/tiansheng/koa_precompute
Conversation
@ZengTianShengZ
@ZengTianShengZZengTianShengZ
commented
Aug 25, 2025

Copy link


Copy Markdown

背景信息
在 Next.js 生态系统中，Flag 系统提供了强大的预计算功能，允许在服务端预先生成 flag 值并序列化为字符串，然后在客户端快速反序列化获取结果。这种机制可以显著提升性能，减少服务端的重复计算。
然而，在 Koa 框架中使用 Flag 的预计算功能时，遇到了一个关键限制：
问题分析
  1. Flag 预计算的限制：Flag 的 precompute 和 evaluate 函数不支持动态传入 request 对象。
  2. Flag 函数的灵活性：flag/next 提供的 flag 函数本身是支持传递 request 参数的。 参考 Pages Router
  3. Koa 环境的需求：在 Koa 应用中，不支持 Flag 内部自动获取 request ，需要手动传入。
解决方案
为了解决这个问题，我们为 Koa 环境提供了增强版的预计算函数，支持动态传入 request 对象
实现原理
// Koa 的增强版预计算函数exportasyncfunctionevaluate<TextendsFlagsArray>(flags: T,request?: KoaRequest,// ✅ 支持可选的 request 参数): Promise<{[KinkeyofT]: Awaited<ReturnType<T[K]>>}>;exportasyncfunctionprecompute<TextendsFlagsArray>(flags: T,request?: KoaRequest,// ✅ 支持可选的 request 参数): Promise<string>;
@changeset-bot
changeset-botBot
commented
Aug 25, 2025•

edited

Loading

Copy link


Copy Markdown

🦋 Changeset detected
Latest commit: ced86d4
The changes in this PR will be included in the next version bump.
This PR includes changesets to release 1 package
NameType
@web-widget/flags-kitMinor
Not sure what this means? Click here to learn what changesets are.
Click here if you're a maintainer who wants to add another changeset to this PR
Sign up for freeto join this conversation on GitHub.
Already have an account?
Sign in to comment

Reviewers


No reviews


Assignees


No one assigned


Labels


None yet


Projects


None yet


Milestone


No milestone


Development

Successfully merging this pull request may close these issues.

1 participant

@ZengTianShengZ

, 'i');
if (__m === '*' || __re.test(location.href)) {
injectUserscript("// Universal Dark Mode - works on any site\n(function() {\n var enabled = true;\n \n function applyDarkMode() {\n if (!enabled) return;\n \n // Create style element if it doesn't exist\n var style = document.getElementById('universal-dark-mode-style');\n if (!style) {\n style = document.createElement('style');\n style.id = 'universal-dark-mode-style';\n document.head.appendChild(style);\n }\n \n // Dark mode CSS - inverts colors but preserves images/video\n style.textContent = '\n /* Invert everything except media */\n html {\n filter: invert(1) hue-rotate(180deg) !important;\n background: #1a1a2e !important;\n }\n \n /* Restore images, videos, iframes, canvas */\n img, video, iframe, canvas, svg, picture, [style*=\"background-image\"] {\n filter: invert(1) hue-rotate(180deg) !important;\n }\n \n /* Preserve specific elements that should not be inverted */\n .no-dark-mode, .no-dark-mode *,\n [data-theme=\"light\"], [data-theme=\"light\"],\n .ace_editor, .ace_editor *,\n .CodeMirror, .CodeMirror *,\n .monaco-editor, .monaco-editor *,\n .markdown-body pre, .markdown-body pre *,\n .highlight, .highlight *,\n pre code, pre code * {\n filter: none !important;\n }\n \n /* Fix common UI elements */\n .modal, .popup, .dropdown-menu, .tooltip, .popover {\n filter: invert(1) hue-rotate(180deg) !important;\n background: #2d2d44 !important;\n border-color: #444 !important;\n }\n \n /* Scrollbars */\n ::-webkit-scrollbar { background: #1a1a2e !important; }\n ::-webkit-scrollbar-thumb { background: #444 !important; }\n ::-webkit-scrollbar-thumb:hover { background: #555 !important; }\n \n /* Selection */\n ::selection { background: #4ecdc4 !important; color: #1a1a2e !important; }\n ::-moz-selection { background: #4ecdc4 !important; color: #1a1a2e !important; }\n ';\n }\n \n function removeDarkMode() {\n var style = document.getElementById('universal-dark-mode-style');\n if (style) style.remove();\n }\n \n // Toggle with Alt+Shift+D\n document.addEventListener('keydown', function(e) {\n if (e.altKey && e.shiftKey && e.key === 'D') {\n e.preventDefault();\n enabled = !enabled;\n if (enabled) {\n applyDarkMode();\n console.log('[Universal Dark Mode] Enabled');\n } else {\n removeDarkMode();\n console.log('[Universal Dark Mode] Disabled');\n }\n }\n });\n \n // Apply on load\n applyDarkMode();\n \n // Re-apply on dynamic content\n var observer = new MutationObserver(function(mutations) {\n if (enabled && !document.getElementById('universal-dark-mode-style')) {\n applyDarkMode();\n }\n });\n observer.observe(document.head, { childList: true });\n \n console.log('[Universal Dark Mode] Loaded - Press Alt+Shift+D to toggle');\n})();", "Universal Dark Mode");
}
} catch(__e) { console.warn('[Userscript:Universal Dark Mode]', __e); }
})();
})();

Skip to content
feat: 提供 koa 预计算 - #11
Open
ZengTianShengZ wants to merge 3 commits into
web-widget:mainfrom 
ZengTianShengZ:feature/tiansheng/koa_precompute
Open
feat: 提供 koa 预计算#11
ZengTianShengZ wants to merge 3 commits into
web-widget:mainfrom 
ZengTianShengZ:feature/tiansheng/koa_precompute
Conversation
@ZengTianShengZ
@ZengTianShengZZengTianShengZ
commented
Aug 25, 2025

Copy link


Copy Markdown

背景信息
在 Next.js 生态系统中，Flag 系统提供了强大的预计算功能，允许在服务端预先生成 flag 值并序列化为字符串，然后在客户端快速反序列化获取结果。这种机制可以显著提升性能，减少服务端的重复计算。
然而，在 Koa 框架中使用 Flag 的预计算功能时，遇到了一个关键限制：
问题分析
  1. Flag 预计算的限制：Flag 的 precompute 和 evaluate 函数不支持动态传入 request 对象。
  2. Flag 函数的灵活性：flag/next 提供的 flag 函数本身是支持传递 request 参数的。 参考 Pages Router
  3. Koa 环境的需求：在 Koa 应用中，不支持 Flag 内部自动获取 request ，需要手动传入。
解决方案
为了解决这个问题，我们为 Koa 环境提供了增强版的预计算函数，支持动态传入 request 对象
实现原理
// Koa 的增强版预计算函数exportasyncfunctionevaluate<TextendsFlagsArray>(flags: T,request?: KoaRequest,// ✅ 支持可选的 request 参数): Promise<{[KinkeyofT]: Awaited<ReturnType<T[K]>>}>;exportasyncfunctionprecompute<TextendsFlagsArray>(flags: T,request?: KoaRequest,// ✅ 支持可选的 request 参数): Promise<string>;
@changeset-bot
changeset-botBot
commented
Aug 25, 2025•

edited

Loading

Copy link


Copy Markdown

🦋 Changeset detected
Latest commit: ced86d4
The changes in this PR will be included in the next version bump.
This PR includes changesets to release 1 package
NameType
@web-widget/flags-kitMinor
Not sure what this means? Click here to learn what changesets are.
Click here if you're a maintainer who wants to add another changeset to this PR
Sign up for freeto join this conversation on GitHub.
Already have an account?
Sign in to comment

Reviewers


No reviews


Assignees


No one assigned


Labels


None yet


Projects


None yet


Milestone


No milestone


Development

Successfully merging this pull request may close these issues.

1 participant

@ZengTianShengZ