Simple REST API Implementation Plan

Project Overview

Implement a minimal REST API for task management demonstrating core REST principles with Express.js.

Implementation Phases

Phase 1: Project Setup and Core Structure (10 minutes)

SPARC Mode: code

Tasks:

1. Initialize npm project with package.json
2. Install minimal dependencies (express, dev dependencies)
3. Create basic server.js with Express setup
4. Implement health check endpoint
5. Add basic error handling middleware

Deliverables:

• package.json with scripts and dependencies
• server.js with basic Express server
• Working health check endpoint

Command:

npx claude-flow sparc run code "Setup Express server with health endpoint for rest-api-simple" --non-interactive

Phase 2: Implement CRUD Operations (15 minutes)

SPARC Mode: tdd

Tasks:

1. Write tests for all CRUD endpoints
2. Implement GET /api/v1/tasks (list all)
3. Implement GET /api/v1/tasks/:id (get single)
4. Implement POST /api/v1/tasks (create)
5. Implement PUT /api/v1/tasks/:id (update)
6. Implement DELETE /api/v1/tasks/:id (delete)
7. Add in-memory data store

Test Coverage:

• Happy path for each endpoint
• Error cases (404, 400)
• Input validation
• Response format verification

Command:

npx claude-flow sparc run tdd "Implement CRUD operations for tasks with full test coverage" --non-interactive

Phase 3: Input Validation and Error Handling (10 minutes)

SPARC Mode: code

Tasks:

1. Add input validation for POST/PUT operations
2. Implement consistent error response format
3. Add proper HTTP status codes
4. Handle edge cases (invalid IDs, missing fields)
5. Add request logging

Deliverables:

• Robust error handling
• Input validation
• Consistent API responses

Command:

npx claude-flow sparc run code "Add input validation and error handling to REST API" --non-interactive

Phase 4: Documentation and Examples (10 minutes)

SPARC Mode: docs-writer

Tasks:

1. Create comprehensive README.md
2. Add usage examples with curl commands
3. Document environment variables
4. Add quick start guide
5. Include API endpoint reference
6. Add troubleshooting section

Deliverables:

• README.md with full documentation
• Example requests for all endpoints
• Setup and deployment instructions

Command:

npx claude-flow sparc run docs-writer "Create comprehensive documentation for simple REST API" --non-interactive

Phase 5: Performance and Security Review (5 minutes)

SPARC Mode: security-review

Tasks:

1. Review code for security vulnerabilities
2. Check for any hardcoded values
3. Verify no sensitive data exposure
4. Ensure proper error messages (no stack traces)
5. Document security considerations

Command:

npx claude-flow sparc run security-review "Review REST API for security best practices" --non-interactive

File Structure

examples/rest-api-simple/
├── server.js              # Main application file
├── server.test.js         # Test suite
├── package.json          # Dependencies and metadata
├── package-lock.json     # Lock file
├── README.md            # User documentation
├── architecture.md      # System design (already created)
├── api-specification.md # API contracts (already created)
└── implementation-plan.md # This file

Testing Strategy

Unit Tests

• Test each route handler independently
• Mock request/response objects
• Verify business logic

Integration Tests

• Test full HTTP request/response cycle
• Verify API contracts
• Test error scenarios

Test Execution

# Run all tests
npm test

# Run tests in watch mode
npm run test:watch

# Run with coverage
npm run test:coverage

Development Workflow

1. Start Development Server

   bashCopy

   npm run dev  # Uses nodemon for auto-reload
   

2. Run Tests

   bashCopy

   npm test
   

3. Manual Testing

   bashCopy

   # Use curl or Postman to test endpoints
   curl http://localhost:3000/api/v1/tasks
   

Success Criteria

• All CRUD operations working correctly
• 100% test coverage for routes
• Proper error handling and validation
• Clean, readable code structure
• Comprehensive documentation
• No security vulnerabilities
• Can be set up and running in < 2 minutes

Next Steps After Implementation

Immediate Extensions (Optional)

1. Add pagination support
2. Add search/filter capabilities
3. Add sorting options
4. Add bulk operations

Future Enhancements

1. Database integration (MongoDB/PostgreSQL)
2. Authentication (JWT)
3. Rate limiting
4. API versioning strategy
5. Swagger/OpenAPI documentation
6. Docker containerization

Parallel Execution with Swarm

For faster implementation, use background swarms:

# Complete implementation in parallel
npx claude-flow swarm "Implement complete simple REST API based on architecture" \
  --strategy development --background --parallel --testing \
  --max-agents 4 --output ./

# Monitor progress
npx claude-flow monitor

Time Estimate

• Total Time: ~50 minutes sequential, ~15 minutes with parallel swarms
• Lines of Code: ~200-300 (keeping it simple)
• Test Coverage: > 90%

Dependencies

Production

• express: ^4.18.2

Development

• jest: ^29.7.0
• supertest: ^6.3.3
• nodemon: ^3.0.1

Environment Variables

• PORT: Server port (default: 3000)
• NODE_ENV: Environment (development/production)

No other configuration needed!