@smartyweb/ui
v1.2.7
Published
Shared React component library consumed by multiple Next.js microservices via private npm.
Readme
@smartyweb/ui
Shared React component library consumed by multiple Next.js microservices via private npm.
Stack
- React 19, TypeScript, SCSS Modules
- Vite (outputs ESM + CJS + types to
dist/) - Storybook v10 for component development and documentation
- Changesets for versioning and changelogs
- Style Dictionary v4 for design token transformation
Getting Started
npm installDevelopment
npm run storybookThis also runs node sd.config.js first to generate CSS tokens from tokens.json.
Build
npm run buildTokens only
npm run tokensRegenerates src/styles/_tokens.generated.scss from tokens.json without building or starting Storybook.
Usage
Install the package in your consuming app:
npm install @smartyweb/uiImport styles once in your app's entry point:
import "@smartyweb/ui/styles.css";Then import components:
import { H1, Paragraph } from "@smartyweb/ui";Font Setup
This library does not bundle fonts. Consumers are responsible for loading fonts and exposing them as CSS custom properties. The library reads these three variables:
| CSS variable | Font | Used by |
| ------------------- | ------------ | --------------------------------- |
| --ui-font-primary | TT Hoves Pro | All heading and button components |
| --ui-font-body | Inter | Body and paragraph components |
| --ui-font-code | Hack | Code component |
In a Next.js app using next/font/local, set these on the root element:
// app/layout.tsx
import localFont from "next/font/local";
const ttHovesPro = localFont({
src: [...],
variable: "--font-tthoves",
});
export default function RootLayout({ children }) {
return (
<html className={ttHovesPro.variable}>
<body style={{
"--ui-font-primary": "var(--font-tthoves, 'TT Hoves Pro', system-ui, sans-serif)",
}}>
{children}
</body>
</html>
);
}If a variable is not set, components fall back to system-ui (headings/body) or monospace (code).
Project Structure
sd.config.js # Style Dictionary config — tokens.json → _tokens.generated.scss
tokens.json # Designer-owned, synced from Tokens Studio (Figma plugin)
src/
text/
ComponentName/
ComponentName.tsx # "use client" at top
ComponentName.module.scss # uses var(--token-*) CSS custom properties
ComponentName.stories.tsx
index.ts # named export
index.ts # barrel export
styles/
_variables.scss # SCSS variables (fonts, weights, breakpoints, font-feature-settings)
_tokens.generated.scss # Auto-generated by sd.config.js — do not edit manually
global.scss
index.ts # main entry pointPublishing
This package uses Changesets for versioning and changelog management.
Semver policy
| Change type | Bump |
| -------------------------------------------------------------------------- | ------- |
| Token value changes (e.g. heading size goes from 64px → 60px) | patch |
| New CSS custom property names added (new tokens consumers could reference) | minor |
| New components added | minor |
| Removed components, renamed props, or changed component API | major |
Visual changes (token values) are always patch — semver communicates API stability, not pixel perfection.
Step 1 — On your feature branch
Create a changeset to describe the change and bump type:
npm run changesetThis opens an interactive prompt:
- Which packages changed? — select
@smartyweb/ui - Bump type? — see semver policy above
- Summary? — plain English description (goes into the changelog)
Then apply the version bump immediately on the same branch:
npm run version # bumps package.json and updates CHANGELOG.mdCommit everything and push:
git add .
git commit -m "chore: version bump"
git pushStep 2 — Open a PR and merge to master
Open a PR from your feature branch → master on Bitbucket. The PR will include both your code changes and the version bump. Get it reviewed and merged.
Step 3 — Publish to npm (automated)
Publishing happens automatically when the PR merges to master. Bitbucket Pipelines runs the build and npm run release (changeset publish), then pushes the git tags.
No manual action needed after merge.
git checkout master && git pull
npm run build
export NPM_TOKEN=<your-token>
npm run release # runs `changeset publish` → publishes to npm and creates git tags
git push --tagsCI Setup (one-time)
Two secured repository variables must be configured under Bitbucket repo → Settings → Pipelines → Repository variables:
| Variable | Where to get it |
| ----------------- | ------------------------------------------------------------- |
| NPM_TOKEN | npmjs.org → Account → Access Tokens → type: "Automation" |
| BITBUCKET_TOKEN | Bitbucket repo → Settings → Access tokens (Repository: Write) |
Mark both as Secured so they are masked in logs.
Design Tokens
Design tokens flow from Figma → code via this pipeline:
- Designer makes changes in Tokens Studio (Figma plugin) and syncs to the
design/tokens-updatebranch - CI (Bitbucket Pipelines) runs
npm run tokenson push, regeneratessrc/styles/_tokens.generated.scss, and commits the diff automatically - Developer opens a PR from
design/tokens-update→master, runsnpx changeset addon the branch, and merges after review - Build on
masterpicks up the updated tokens and publishes a new npm version
Reviewing a token PR
When reviewing a design/tokens-update PR, check:
- The
_tokens.generated.scssdiff — values should match the designer's intent in Figma - Spot-check affected components in Storybook (deployed on Vercel, or run
npm run storybooklocally) - Confirm a changeset file is present in
.changeset/before merging
A changeset must be committed to the branch before the PR is merged. The developer opening the PR is responsible for this — the pipeline cannot do it automatically because bump type and description require human input.
sd.config.js reads only the Responsive/Desktop, Responsive/Tablet, and Responsive/Mobile token sets, outputting ~99 CSS custom properties like:
:root {
--h1-desktop-font-size: 64px;
--h1-desktop-line-height: 64px;
--h1-desktop-letter-spacing: -0.02em;
/* ... */
}Text components consume these via var(--{component}-{breakpoint}-{property}). Font families, weights, and OpenType feature settings remain as SCSS variables in _variables.scss.
Note: tablet CSS custom properties are generated but components intentionally do not use them. Components apply desktop values down to 768px, then switch to mobile. Tablet tokens are kept in tokens.json as source data for the planned fluid typography migration (see Roadmap).
Roadmap
Fluid typography
The current breakpoint approach (desktop / mobile with a hard switch at 768px) will be replaced with fluid typography using CSS clamp(). The desktop and mobile token values will become the max and min of the clamp range respectively, scaling continuously across the viewport.
The planned implementation: Style Dictionary computes the clamp() formula at build time (it has access to the raw numbers), outputting a single token per property (e.g. --h1-font-size: clamp(44px, ..., 64px)) instead of the current per-breakpoint triplets. Component SCSS becomes a single font-size: var(--h1-font-size) with no media queries.
The tablet token set in tokens.json will be retired from the Style Dictionary transform when this ships.
Architecture
- Component library only — no routing, no pages, no app logic.
- All components include
"use client"for compatibility with Next.js App Router and Pages Router. - CSS is compiled to a single file at build time. No runtime CSS injection.
- React is a peerDependency, not bundled.
- Stories are co-located with components.
_tokens.generated.scssis committed so token changes are visible in PR diffs, but never edit it manually — always regenerate vianpm run tokens.
