feat(examples): add chat-app and webui-todo-app SSR examples with design tokens#7526
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janechu wants to merge 1 commit into
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feat(examples): add chat-app and webui-todo-app SSR examples with design tokens#7526janechu wants to merge 1 commit into
janechu wants to merge 1 commit into
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- Add examples/ssr/chat-app/ — declarative FAST chat demo using @microsoft/fast-build for SSR pre-rendering and hidden-iframe streaming for assistant replies. Uses the dark theme statically. - Add examples/ssr/webui-todo-app/ — todo app using @microsoft/webui for server-side prerendering and @microsoft/fast-html for hydration. Uses the light theme statically. - Both apps consume @microsoft/fast-examples-design-system tokens via CSS custom properties. No hard-coded design values; no runtime theme switching. - Add 'examples/ssr/*' to the root workspaces config and update the workspace-level README.md, DESIGN.md, and .github/copilot-instructions to describe the new ssr/ subfolder. Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>
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Pull Request
📖 Description
Adds two new SSR example apps and adopts the shared CSS design system that landed in #7524.
examples/ssr/chat-app/— declarative FAST chat demo. Initial markup is pre-rendered with@microsoft/fast-build; each assistant reply is streamed into the transcript with the hidden-iframe +document.write()technique. Hard-coded dark theme.examples/ssr/webui-todo-app/— todo app pre-rendered by@microsoft/webuiand hydrated by@microsoft/fast-htmlvia<f-template>. Hard-coded light theme.Both apps live under the new
examples/ssr/folder (separate fromexamples/csr/) because both rely on a server-side rendering backend rather than a client-only bootstrap. Both consume@microsoft/fast-examples-design-systemfor every color, type ramp, spacing, corner, stroke, shadow, duration, and easing value throughvar(--fast-...)tokens. Neither app implements a runtime theme toggle;data-themeis set statically in the entry HTML.This change supersedes the two open PRs for these example apps:
webui-todo-app. Now rebased underexamples/ssr/and updated for the shared design system.chat-app. Now rebased underexamples/ssr/and updated for the shared design system.The merged PRs #7523 (todo-mobx-app) and #7524 (CSS-only design system) provide the conventions this PR follows.
👩💻 Reviewer Notes
examples/csr/keeps purely client-rendered examples.examples/ssr/now holds examples whose initial markup is produced server-side and hydrated in the browser. The workspace-level README, DESIGN.md, and.github/copilot-instructions.mddescribe this split.@microsoft/fast-examples-design-system/tokens.cssexactly once from its TypeScript entry. The webui-todo-app'ssrc/index.tstriggers esbuild to emitdist/index.css, whichsrc/index.htmllinks before the inline page-shell styles. The chat-app'sentry.htmllinkspublic/styles.cssdirectly, and that stylesheet is shared with every component shadow root via<link rel="stylesheet">inside each<template shadowrootmode="open">.<html data-theme="dark">(chat-app) and<html data-theme="light">(webui-todo-app). No runtime toggle, no theme persistence."@microsoft/fast-element": "^3.0.0-rc.1", so npm installs the v3 RC into the chat-app's localnode_modules. The webui-todo-app uses the workspacefast-element 2.x. Both build cleanly from the same checkout.index.html.examples/ssr/chat-app/index.htmlis regenerated bybuild-markup.mjsfromentry.html+state.json+templates.htmlon every build, so it is gitignored at the example level.📑 Test Plan
From the monorepo root:
Manual smoke test:
✅ Checklist
General
$ npm run change⏭ Next Steps