add server api

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[nexxeln]

• Add user search #514
• add frontend for search #513
• add server api #512 👈 (View in Graphite)
• main

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[claude]

Pull Request Review: Add Server API

Thank you for the contribution! I've reviewed the code and have the following feedback:

🔴 Critical Issues

1. Missing Dependencies & Package Configuration

• The code uses express but there's no package.json in the graphite-demo/ directory
• The repository uses Bun as its package manager (per CLAUDE.md), but this is a Node.js Express app
• Action needed: Add a package.json with express dependency, or consider using Hono (which is already in the monorepo stack)

2. Inconsistent with Repository Architecture

• The monorepo uses Turbo for workspace management with apps in apps/ directory
• This adds a standalone directory (graphite-demo/) outside the standard structure
• Per CLAUDE.md, the codebase uses Hono as the web framework, not Express
• Recommendation: Either integrate into the monorepo structure or document why this is separate

⚠️ Code Quality & Best Practices

3. Missing Error Handling

• No validation for query parameters
• No error handling middleware
• Suggestion: Add try-catch blocks and error middleware

4. Security Concerns

• No rate limiting on the /search endpoint (susceptible to DoS)
• No input sanitization (though toLowerCase() provides some protection)
• CORS not configured - will block browser requests from different origins
• Recommendation: Add helmet, cors, and rate-limiting middleware

5. Missing File Extension

• File ends without a newline character (line 33)
• Action: Add newline at end of file per standard conventions

6. Port Configuration

• Port 3000 is hardcoded and may conflict with other services
• The Next.js web app (in apps/web/) likely uses this port
• Suggestion: Use environment variable: const port = process.env.PORT || 3000;

📝 Code Style Issues (Per Repository Standards)

7. Linting & Formatting

• Repository uses Biome for linting/formatting (per CLAUDE.md)
• JavaScript file won't be checked by the monorepo's bun run format-lint
• Action: Ensure this file is included in biome.json or convert to TypeScript

8. TypeScript Usage

• The entire repository uses TypeScript throughout (per CLAUDE.md)
• This is the only .js file being added
• Recommendation: Convert to TypeScript for consistency

🧪 Testing

9. No Tests

• No test coverage for the search endpoint
• Recommendation: Add unit tests for the filtering logic

💡 Suggested Improvements

// Example using Hono (consistent with codebase)
import { Hono } from 'hono';
import { cors } from 'hono/cors';

const app = new Hono();
app.use('/*', cors());

const tasks = [
  { id: 1, description: 'Complete monthly financial report' },
  { id: 2, description: 'Plan team building activity' },
  { id: 3, description: 'Update project documentation' }
];

app.get('/search', (c) => {
  const query = c.req.query('query')?.toLowerCase() || '';
  
  if (!query.trim()) {
    return c.json({ error: 'Query parameter is required' }, 400);
  }
  
  const filteredTasks = tasks.filter(task => 
    task.description.toLowerCase().includes(query)
  );
  
  return c.json(filteredTasks);
});

export default app;

📋 Questions

1. What is the purpose of the graphite-demo/ directory? Is this for testing/demo purposes?
2. Should this be integrated into the main monorepo structure?
3. Is there a specific reason for using Express instead of Hono (the framework used elsewhere)?

✅ What's Good

• Clean, readable code structure
• Simple and functional search implementation
• Good use of optional chaining (req.query.query?.toLowerCase())

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Overall Recommendation: This needs significant changes before merging. Please address the dependency management, align with repository architecture (Hono + TypeScript + Turbo monorepo), and add proper error handling and security measures.

Happy to discuss any of these points! 🚀

[claude]

Code Review - PR #512: Add Server API

Overview

This PR adds a simple Express.js server with a /search endpoint for filtering tasks. Here's my detailed review:

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🔴 Critical Issues

1. Missing Dependencies (graphite-demo/server.js:1)

• The code uses express but there's no package.json in the graphite-demo/ directory
• Fix: Add a package.json with Express as a dependency:

{
  "name": "graphite-demo",
  "version": "1.0.0",
  "dependencies": {
    "express": "^4.18.2"
  }
}

2. No CORS Configuration (graphite-demo/server.js:2-3)

• If this API will be called from a frontend (like PR add frontend for search #513), it needs CORS enabled
• Fix: Add CORS middleware:

const cors = require('cors');
app.use(cors());

3. Missing Middleware for JSON/URL-encoded Bodies

• While not critical for GET requests, it's best practice to include body parsers
• Fix: Add before routes:

app.use(express.json());
app.use(express.urlencoded({ extended: true }));

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⚠️ Security Concerns

4. No Input Validation (graphite-demo/server.js:21-22)

• The query parameter is used directly without validation or sanitization
• Could lead to injection issues if data source changes to a database
• Fix: Add input validation:

const query = req.query.query?.trim().slice(0, 100).toLowerCase() || '';

5. No Rate Limiting

• The endpoint has no rate limiting, making it vulnerable to abuse
• Recommendation: Add express-rate-limit middleware

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🐛 Potential Bugs

6. Case-Sensitive Filtering Logic (graphite-demo/server.js:25)

• The filter converts both to lowercase, which is good
• However, the sort happens after filter - minor efficiency concern for large datasets

7. No Error Handling

• Missing try-catch blocks and error handling middleware
• Fix: Add error handling:

app.get('/search', (req, res, next) => {
  try {
    // ... existing code
  } catch (error) {
    next(error);
  }
});

app.use((err, req, res, next) => {
  res.status(500).json({ error: 'Internal server error' });
});

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💡 Best Practices & Code Quality

8. Hardcoded Port (graphite-demo/server.js:3)

• Fix: Use environment variable:

const port = process.env.PORT || 3000;

9. No Health Check Endpoint

• Recommendation: Add a health check:

app.get('/health', (req, res) => res.json({ status: 'ok' }));

10. Missing File Extension (graphite-demo/server.js:36)

• File ends without a newline (minor formatting issue)
• Most editors add this automatically per convention

11. Inconsistent with Monorepo Architecture

• This project uses Bun and Hono/Next.js, but this demo uses Node.js/Express
• Question: Is this intentional for demo purposes? Should align with main stack or clarify purpose

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🧪 Test Coverage

12. No Tests

• Missing unit tests for the search functionality
• Missing integration tests for the API endpoint
• Recommendation: Add tests using Jest or Vitest:

describe('GET /search', () => {
  it('should filter tasks by query', async () => {
    const response = await request(app).get('/search?query=report');
    expect(response.body).toHaveLength(1);
    expect(response.body[0].description).toContain('report');
  });
  
  it('should return all tasks when query is empty', async () => {
    const response = await request(app).get('/search');
    expect(response.body).toHaveLength(3);
  });
});

---

🚀 Performance Considerations

13. Inefficient Sorting (graphite-demo/server.js:28)

• Sorting happens on every request for static data
• Optimization: If tasks are static, sort once at startup:

const sortedTasks = tasks.sort((a, b) => a.description.localeCompare(b.description));

app.get('/search', (req, res) => {
  const query = req.query.query?.toLowerCase() || '';
  const filteredTasks = sortedTasks.filter(/* ... */);
  res.json(filteredTasks);
});

14. No Caching Headers

• Consider adding appropriate cache headers for static responses

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✅ What's Good

• Clean, readable code structure
• Good use of optional chaining (?.)
• Appropriate HTTP method (GET) for search operations
• Case-insensitive search is user-friendly

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📝 Summary

Before merging, please address:

1. Add package.json with dependencies ✅ Critical
2. Add CORS configuration ✅ Critical
3. Add input validation ⚠️ Security
4. Add error handling ⚠️ Reliability
5. Add tests 🧪 Quality

Nice to have:

• Environment-based port configuration
• Rate limiting
• Performance optimizations
• Alignment with monorepo architecture

Let me know if you need help implementing any of these suggestions!

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🤖 Review generated with Claude Code