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🚀 feat: Complete authentication system, absolute paths, and comprehensive documentation

📋 Summary

This PR establishes the foundational infrastructure for the React Ecommerce boilerplate, including a complete authentication system with automatic token refresh, absolute path configuration across the monorepo, Poppins font integration, and extensive documentation for both web and admin apps.

✨ Features

🔐 Authentication System

Token Management

  • ✅ Automatic access token storage on login/register
  • ✅ Automatic refresh token storage
  • ✅ Dual storage strategy (localStorage + memory for SSR support)

Auto Token Refresh

  • ✅ Automatic token refresh on 401 errors
  • ✅ Request queuing during refresh (prevents race conditions)
  • ✅ Automatic retry of failed requests after token refresh
  • ✅ Graceful fallback: redirects to /login if refresh fails
  • ✅ Backend-validated tokens (removed unnecessary client-side checks)

Implementation

// Simplified flow
Request (401) → Get Refresh Token → POST /api/auth/refresh
→ Save New Tokens → Retry Original Request → Resume Queued Requests

📁 Absolute Paths Configuration

SDK Package (@react-shop/sdk)

  • ✅ Changed internal alias from @/ to @sdk/ to avoid conflicts
  • ✅ Added path mappings: @sdk/*, @entities/*, @providers/*, @services/*
  • ✅ Updated all SDK files to use new aliases

Web App

  • ✅ Configured tsconfig.json with absolute paths
  • ✅ Configured next.config.js with webpack aliases
  • ✅ Added mappings for @lib, @entities, @providers, @services, @sdk

Benefits

// ❌ Before
import { setToken } from "../../../client";
import { User } from "../../../../entities/User";

// ✅ After
import { setToken } from "@sdk/client";
import { User } from "@entities/User";

🎨 Typography

Poppins Font Integration

  • ✅ Integrated using Next.js next/font/google for optimal performance
  • ✅ Weights: 300, 400, 500, 600, 700
  • ✅ Applied to both font-sans and font-heading in Tailwind config
  • ✅ Zero layout shift with display: swap
  • ✅ CSS variable support: --font-poppins

📚 Documentation

New Documentation Files

  1. apps/web/FEATURES.md (266 lines)

    • Complete customer-facing store feature list
    • Organized by: Public Pages, Shopping Experience, User Account, UI/UX, Technical
    • 8-week implementation roadmap with 5 phases
    • Priority-based task organization

  2. apps/admin/FEATURES.md (357 lines)

    • Complete admin dashboard feature list
    • Organized by: Dashboard, Product Management, Orders, Customers, Financial, Settings
    • 8-week implementation roadmap with 6 phases
    • Technical requirements for admin-specific patterns

  3. apps/APPS_ARCHITECTURE.md (444 lines)

    • Comprehensive architecture guide
    • Explains web vs admin app separation
    • Data flow diagrams
    • Authentication strategies
    • Deployment options
    • Development workflow

  4. packages/sdk/AUTH_FLOW.md (342 lines)

    • Complete authentication flow documentation
    • Token lifecycle diagram
    • Usage examples for all auth hooks
    • Backend requirements
    • Security best practices
    • Troubleshooting guide

  5. QUICK_START.md (269 lines)

    • Developer quick reference
    • Setup instructions
    • Common commands
    • Test credentials
    • Code examples
    • Troubleshooting tips

  6. IMPLEMENTATION_SUMMARY.md (163 lines)

    • Recent updates summary
    • Technical implementation details
    • What's working checklist
    • Next steps

  7. ABSOLUTE_PATHS_GUIDE.md (updated)

    • Added @sdk alias documentation
    • Updated examples with new paths

🔧 Technical Changes

Modified Files

SDK (packages/sdk/)

src/client.ts                              - Token refresh logic + storage helpers
src/services/mutations/auth/useLogin/      - Save both tokens
src/services/mutations/auth/useRegister/   - Save both tokens
src/services/mutations/auth/useLogout/     - Updated imports
src/services/queries/products/             - Updated imports
src/providers/ApiProvider.tsx              - Config validation
tsconfig.json                              - Changed @/ to @sdk/

Web App (apps/web/)

app/layout.tsx                             - Poppins font + apiConfig fix
tsconfig.json                              - Absolute path mappings
next.config.js                             - Webpack aliases
FEATURES.md                                - Complete rewrite

Design System (packages/design-system/)

src/styles/global.css                      - Removed redundant font-family
tailwind.config.ts                         - Updated font config to use Poppins

Documentation

apps/admin/FEATURES.md                     - New file
apps/APPS_ARCHITECTURE.md                  - New file
packages/sdk/AUTH_FLOW.md                  - New file
QUICK_START.md                             - New file
IMPLEMENTATION_SUMMARY.md                  - New file
ABSOLUTE_PATHS_GUIDE.md                    - Updated

🎯 Key Decisions

1. Admin as Separate App

Decision: Admin dashboard is a separate Next.js app (apps/admin), not a route in web app.

Reasons:

  • 🔒 Security: Admin code doesn't ship to customers
  • 📦 Performance: Smaller bundle size for customer store
  • 🎨 Different UI/UX needs
  • 🚀 Independent deployments
  • 🔐 Separate RBAC system

2. Backend Token Validation

Decision: Removed client-side refresh token validation, let backend handle it.

Benefits:

  • Backend is single source of truth
  • Simpler client logic
  • More flexible validation rules
  • Better error messages from backend

3. Absolute Paths Strategy

Decision: Use @sdk/ prefix instead of @/ for SDK package.

Reasons:

  • Avoids conflicts with web app's @/ alias
  • Clearer import origins
  • Better IDE autocomplete
  • Consistent across monorepo

🧪 Testing Checklist

  • Token refresh works automatically on 401
  • Multiple requests queue correctly during refresh
  • Failed refresh redirects to login
  • Poppins font loads and applies correctly
  • Absolute imports resolve in web app
  • Absolute imports resolve in SDK
  • Dev server starts without errors
  • All documentation is accurate

📊 Impact

Performance

  • ✅ Automatic token refresh reduces failed requests
  • ✅ Request queuing prevents duplicate refresh calls
  • ✅ Poppins font optimized via Next.js

Developer Experience

  • ✅ Absolute imports improve code readability
  • ✅ Comprehensive docs reduce onboarding time
  • ✅ Clear architecture guide prevents confusion
  • ✅ Quick start guide speeds up setup

Maintainability

  • ✅ Centralized token management
  • ✅ Type-safe SDK with React Query
  • ✅ Well-documented feature roadmaps
  • ✅ Clear separation of concerns (web vs admin)

🚀 What's Ready

  1. ✅ Authentication - Complete JWT flow with auto-refresh
  2. ✅ Token Storage - Persistent + memory storage
  3. ✅ Absolute Paths - Configured across monorepo
  4. ✅ Typography - Poppins font integrated
  5. ✅ Documentation - Comprehensive guides for all aspects
  6. ✅ Architecture - Clear app separation strategy
  7. ✅ Feature Roadmaps - 8-week plans for web & admin

📋 Next Steps (Follow-up PRs)

Phase 1: Foundation

  • Setup admin app structure
  • Create authentication pages (login, register)
  • Build layout components (header, footer, navigation)

Phase 2: Web App - Core Shopping

  • Home page with featured products
  • Product listing page with filters
  • Product detail page
  • Shopping cart functionality

Phase 3: Admin App - Product Management

  • Product CRUD interface
  • Category management
  • Image upload
  • Stock management

📝 Breaking Changes

None. This is foundational work that doesn't affect existing functionality.

🔗 Related Issues

  • Closes #[issue-number] - Add authentication system
  • Closes #[issue-number] - Setup absolute paths
  • Closes #[issue-number] - Add project documentation

📸 Screenshots

Poppins Font Applied

✅ Font loads correctly in browser with proper weights

Dev Server Running

✅ http://localhost:3001 - Web app running without errors ✅ All absolute imports resolved ✅ Hot reload working

👥 Review Notes

For Reviewers

Focus Areas:

  1. Token refresh logic in packages/sdk/src/client.ts
  2. Absolute path configurations in tsconfig.json files
  3. Documentation accuracy and completeness
  4. Architecture decisions in APPS_ARCHITECTURE.md

Testing:

  1. Start dev server: pnpm dev
  2. Check browser console for errors
  3. Verify font loads: inspect element to see Poppins
  4. Test imports: all @sdk/*, @entities/* should resolve

✅ Checklist

  • Code follows project conventions
  • All tests pass (SDK and web app)
  • Documentation is complete and accurate
  • No console errors in dev mode
  • Absolute imports work correctly
  • Token refresh tested manually
  • Poppins font verified in browser
  • Commit messages follow conventional commits
  • All changes committed and pushed

📞 Questions?

  • Auth Flow: See packages/sdk/AUTH_FLOW.md
  • Architecture: See apps/APPS_ARCHITECTURE.md
  • Getting Started: See QUICK_START.md
  • Web Features: See apps/web/FEATURES.md
  • Admin Features: See apps/admin/FEATURES.md

Commits: 8 commits Files Changed: 18 files Lines Added: ~2,500+ Documentation: 6 new files, 1 updated

Ready to merge and start building features! 🎉