Overview
This page contains 7 code snippets for implementing Middleware in Express.js. Each snippet is production-ready and can be copy-pasted directly into your project.
Available Snippets
Apollo GraphQL Server
Apollo Server 4 with Express integration
- Apollo Server 4 setup
- Express middleware integration
- Context for authentication
JWT Authentication
JWT middleware with role-based access
- JWT verification
- Role-based access control
- Token extraction from header/cookie
Routes Logger
HTTP request logging middleware
- Morgan integration
- Customizable format
- Skip conditions
Error Handler
Global error handling middleware
- Global error catching
- Environment-aware responses
- Error logging
Cache Control
HTTP caching headers middleware
- Cache-Control headers
- ETag support
- Conditional requests
Compression
Response compression middleware
- Gzip compression
- Brotli support
- Threshold configuration
JWT Utilities
JSON Web Token signing and verification
- Token signing
- Token verification
- Refresh token support
Frequently Asked Questions
How do I implement Middleware in Express.js?
Browse the snippets above and copy the code that matches your needs. Each snippet includes installation instructions and usage examples.
Are these snippets production-ready?
Yes, all snippets are designed for production use. However, always review and test them in your specific context before deployment.
Can I use these snippets with other Express.js versions?
These snippets are designed for the current major version of the framework. Check the snippet documentation for version compatibility notes.