Cursor Rules for
Express.js

This rule explains Express.js conventions and best practices for Node.js backend development.
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Type
Backend
Language(s)
JavaScript
TypeScript
Stats
530 views
67 copies
20 downloads
expressjs.mdc
---
description: This rule explains Express.js conventions and best practices for Node.js backend development.
globs: **/*.js,**/*.ts
alwaysApply: false
---

# Express.js rules

- Use proper middleware order: body parsers, custom middleware, routes, error handlers
- Organize routes using Express Router for modular code structure
- Use async/await with proper error handling and try/catch blocks
- Create a centralized error handler middleware as the last middleware
- Use environment variables for configuration with a config module
- Implement request validation using libraries like express-validator
- Use middleware for authentication and authorization
- Use appropriate HTTP status codes in responses
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