Middleware acts as a bridge between the client and server, enabling powerful functionality in API development. Here are practical examples across different programming languages:

📌 Node.js: Express Middleware

// Example: Logging middleware
app.use((req, res, next) => {
  console.log(`Request URL: ${req.url}`);
  next();
});
Express Middleware

📌 Python: Flask Middleware

# Example: Custom middleware
@app.before_request
def log_request():
    print(f"Request Method: {request.method}")
Flask Middleware

📌 Go: Gin Middleware

// Example: Recovery middleware
func RecoveryMiddleware() gin.HandlerFunc {
    return gin.Recovery()
}
Gin Middleware

For deeper insights into middleware implementation, check our official documentation. 🚀

Learn more about advanced middleware techniques → Middleware Best Practices