feat: Complete Order Management System

[LeSoviet]

🎯 Overview

Production-ready order management system built with TypeScript, React 19, Express, Prisma, and PostgreSQL. Features complete CRUD operations, professional UX patterns, comprehensive testing, and end-to-end type safety.

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✨ Key Features

Core Functionality

• ✅ Full CRUD Operations - Create, Read, Update, Delete orders
• ✅ Server-side Pagination - Efficient data loading with configurable page size
• ✅ Status Filtering - Filter by PENDING, COMPLETED, or CANCELLED
• ✅ Real-time Validation - Zod schemas validate data on both client and server
• ✅ End-to-end Type Safety - Shared types eliminate frontend/backend drift

Professional UX (NEW ⭐)

• ✅ Toast Notifications - Instant feedback for all actions (create, update, delete)
• ✅ Color-coded Status Badges - 🟡 Pending, 🟢 Completed, 🔴 Cancelled
• ✅ Delete Confirmation Modal - Prevents accidental deletions with elegant dialog
• ✅ Loading States - Clear feedback during async operations
• ✅ Error Handling - User-friendly error messages with toast notifications
• ✅ Responsive Design - Mobile-friendly UI with TailwindCSS

Technical Excellence

• ✅ Monorepo Architecture - pnpm workspaces with shared types
• ✅ React Query - Automatic caching, optimistic updates, cache invalidation
• ✅ Type-First Development - Zod schemas generate TypeScript types
• ✅ Comprehensive Testing - 15 tests total (10 backend + 5 frontend) - 100% passing
• ✅ Code Quality - ESLint, Prettier, strict TypeScript configuration

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🏗️ Architecture Highlights

Monorepo Structure

apps/
  backend/      # Express API + Prisma (port 3000)
  frontend/     # React 19 + Vite (port 5173)
packages/
  shared-types/ # Zod schemas + TypeScript types
postman/        # API testing collection

Tech Stack

Backend:

• Node.js + TypeScript + Express
• Prisma ORM + PostgreSQL
• Zod validation
• Jest + Supertest (10 tests ✅)

Frontend:

• React 19 + TypeScript + Vite
• TailwindCSS styling
• React Query (server state)
• React Hook Form + Zod
• React Hot Toast (notifications)
• Vitest + RTL (5 tests ✅)

Shared:

• pnpm workspaces
• Shared Zod schemas
• ESLint + Prettier

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📋 API Endpoints

Method	Endpoint	Description
GET	/health	Health check
GET	/api/orders	Get paginated orders
GET	/api/orders/:id	Get order by ID
POST	/api/orders	Create new order
PUT	/api/orders/:id	Update order
DELETE	/api/orders/:id	Delete order

Query Parameters:

• page - Page number (default: 1)
• page_size - Items per page (default: 10, max: 100)
• status - Filter by status (PENDING/COMPLETED/CANCELLED)

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🧪 Testing

Test Results (100% Passing ✅)

Backend (Jest + Supertest):

• ✅ Pagination with correct metadata (2 tests)
• ✅ Order creation with validation (2 tests)
• ✅ Order retrieval by ID (3 tests)
• ✅ Status filtering with pagination (3 tests)
• Total: 10/10 tests passing

Frontend (Vitest + React Testing Library):

• ✅ Component rendering (2 tests)
• ✅ React Query hook initialization (3 tests)
• Total: 5/5 tests passing

Run Tests

# Backend tests
pnpm --filter backend test

# Frontend tests
pnpm --filter frontend test --run

# All tests
pnpm --filter backend test && pnpm --filter frontend test --run

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🚀 Quick Start

Initial Setup

pnpm install
pnpm --filter backend prisma:generate
pnpm --filter backend prisma:migrate dev
pnpm --filter backend prisma:seed

Development

# Terminal 1 - Backend (port 3000)
pnpm dev:backend

# Terminal 2 - Frontend (port 5173)
pnpm dev:frontend

Testing

pnpm --filter backend test
pnpm --filter frontend test --run

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📊 Requirements Checklist

Backend Requirements ✅

• ✅ All CRUD endpoints (POST, GET, PUT, DELETE)
• ✅ Order structure with all required fields
• ✅ Pagination support with metadata
• ✅ Node.js + TypeScript + Express
• ✅ PostgreSQL database with Prisma ORM

Frontend Requirements ✅

• ✅ Order list view with pagination
• ✅ Order details view
• ✅ Create/Edit order forms
• ✅ Delete functionality with confirmation
• ✅ Loading and error states
• ✅ TypeScript + React 19

Bonus Features ✅

• ✅ Status filtering (backend & frontend)
• ✅ Shared types between frontend and backend
• ✅ Toast notifications (NEW)
• ✅ Status badges with color coding (NEW)
• ✅ Delete confirmation modal (NEW)
• ✅ Comprehensive testing (15 tests)
• ✅ Comprehensive documentation
• ✅ ESLint/Prettier configuration
• ✅ Postman collection

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🎨 UI/UX Improvements (Latest Update)

1. Toast Notifications

• Library: react-hot-toast
• Features: Success/error feedback for all CRUD operations
• Positioning: Top-right with 3-second duration
• Styling: Dark theme with color-coded icons

2. Status Badges

• Component: StatusBadge with Tailwind styling
• Colors:
  • 🟡 PENDING → Yellow badge
  • 🟢 COMPLETED → Green badge
  • 🔴 CANCELLED → Red badge
• Usage: Orders list and details pages

3. Delete Confirmation

• Component: ConfirmDialog modal
• Features:
  • Backdrop overlay
  • Descriptive message
  • Loading state during deletion
  • Cancel/Confirm buttons
• Usage: Prevents accidental deletions

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📁 Files Changed in Latest Update

New Components

• ✅ apps/frontend/src/components/StatusBadge.tsx - Color-coded status badges
• ✅ apps/frontend/src/components/ConfirmDialog.tsx - Delete confirmation modal

Updated Files

• ✅ apps/frontend/package.json - Added react-hot-toast dependency
• ✅ apps/frontend/src/App.tsx - Added Toaster provider
• ✅ apps/frontend/src/hooks/useOrders.ts - Added toast notifications to mutations
• ✅ apps/frontend/src/pages/OrdersListPage.tsx - StatusBadge + ConfirmDialog
• ✅ apps/frontend/src/pages/OrderDetailsPage.tsx - StatusBadge + ConfirmDialog
• ✅ README.md - Complete English documentation with command reference
• ✅ .gitignore - Added copilot-instructions.md

Removed Files

• ❌ .github/copilot-instructions.md - Removed from version control (local only)

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🎯 Technical Decisions

Why Monorepo?

• Shared types eliminate drift between frontend/backend
• Single source of truth for validation (Zod schemas)
• Faster development with instant type updates

Why Zod?

• Runtime validation at API boundaries
• TypeScript types auto-generated from schemas
• Single schema for validation + types

Why React Query?

• Automatic caching reduces API calls
• Optimistic updates for instant UI feedback
• Cache invalidation keeps data fresh
• Eliminates need for Redux/Zustand

Why Toast Notifications?

• Industry standard for user feedback
• Non-blocking, dismissible messages
• Better UX than alert() dialogs
• Professional appearance

Why Confirmation Dialogs?

• Prevents accidental data loss
• Better UX than window.confirm()
• Customizable messaging
• Loading states during async operations

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📚 Documentation

README.md

• ✅ Quick command reference at the top
• ✅ Detailed setup guide
• ✅ Architecture explanation
• ✅ API documentation with examples
• ✅ Testing guide
• ✅ Technical decisions rationale
• ✅ Troubleshooting section

Code Documentation

• ✅ TypeScript types and interfaces
• ✅ JSDoc comments on complex functions
• ✅ Component prop types
• ✅ API response types

External Resources

• ✅ Postman collection with examples
• ✅ Environment variables documentation
• ✅ Database schema documentation (Prisma)

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🔒 Code Quality

TypeScript

• ✅ Strict mode enabled
• ✅ No any types
• ✅ Comprehensive type coverage
• ✅ Type-safe API client

Testing

• ✅ 15 tests total (100% passing)
• ✅ Integration tests (backend)
• ✅ Component tests (frontend)
• ✅ Error case coverage

Linting

• ✅ ESLint configured
• ✅ Prettier configured
• ✅ No warnings or errors
• ✅ Consistent code style

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🎥 Demo Highlights

1. Order List View

   • Color-coded status badges
   • Pagination controls
   • Status filter dropdown
   • Delete with confirmation

2. Create Order

   • Form validation
   • Real-time feedback
   • Success toast notification
   • Auto-redirect to list

3. Edit Order

   • Pre-filled form
   • Validation
   • Success toast
   • Cache invalidation

4. Delete Order

   • Confirmation modal
   • Loading state
   • Success toast
   • Smooth UI update

5. Error Handling

   • Validation errors
   • Network errors
   • User-friendly messages
   • Error toasts

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🚀 Ready for Review

This PR is complete and ready for review. All requirements met, tests passing, documentation comprehensive, and UX professional.

Merge Checklist

• ✅ All tests passing (15/15)
• ✅ No TypeScript errors
• ✅ No ESLint warnings
• ✅ Code formatted with Prettier
• ✅ Documentation complete
• ✅ README in English
• ✅ Professional UX features implemented
• ✅ Commit messages clear and descriptive

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[Copilot]

Pull Request Overview

Production-ready monorepo implementing a full-stack Order Management System with shared types, an Express/Prisma backend, a React 19 frontend, and a Postman collection for API testing.

• Adds backend CRUD, pagination, filtering, validation, and centralized error handling
• Adds frontend pages, hooks, and services with React Query and Tailwind
• Adds shared Zod schemas/types and Postman collection + docs

Reviewed Changes

Copilot reviewed 47 out of 52 changed files in this pull request and generated 11 comments.

Show a summary per file

File	Description
postman/README.md	Adds Postman usage guide (formatting issues and duplicated/misaligned sections present)
postman/Order_Management_Dev.postman_environment.json	Adds Postman environment (BASE_URL and ORDER_ID)
postman/Order_Management_API.postman_collection.json	Adds comprehensive collection with scripts/tests (minor doc description inconsistency)
pnpm-workspace.yaml	Declares workspaces for apps and packages
packages/shared-types/*	Adds shared Zod schemas/types for end-to-end type-safety
apps/frontend/*	Adds React app, pages, hooks, services, styling, configs
apps/backend/*	Adds Express server, Prisma config/schema/seed, controllers, routes, middleware
README.md	Replaces root readme with project docs (some API docs inconsistencies/formatting)
.prettierrc, .prettierignore	Repo formatting configs
.github/copilot-instructions.md	Project guidance for AI usage
.env.example files	Example environment variables for backend/frontend

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[Copilot]

Pull Request Overview

Copilot reviewed 48 out of 52 changed files in this pull request and generated 10 comments.

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