How does conditional middleware work?

It allows you to wrap middleware logic in a conditional check, enabling specific features like profiling or detailed error pages only in development environments or specific URL paths.

How do I create a custom Rack middleware?

Define a Ruby class with an initialize(app) method to store the application and a call(env) method to process the request/response, then use the 'use' keyword in your configuration.

Why is middleware ordering important in Rack?

The order determines the sequence of processing; security, rate-limiting, and logging should generally be placed early in the stack to protect and monitor the application effectively.

Can I use this skill with any Ruby web framework?

While optimized for Sinatra, these Rack patterns are compatible with any Rack-compliant framework, including Ruby on Rails, Hanami, and Padrino.

Rack Middleware for Sinatra & Ruby

Name: Rack Middleware for Sinatra & Ruby
Author: geoffjay

bygeoffjay

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API Development

Streamlines the development, configuration, and integration of Rack middleware for Ruby and Sinatra applications.

About

This skill provides a comprehensive framework for building and managing Rack middleware within Ruby ecosystems, specifically optimized for Sinatra. It offers expert guidance on middleware stacking, custom implementation patterns for logging and authentication, and efficient request/response processing. Developers can leverage this skill to implement standardized security headers, session management, and complex conditional middleware chains while ensuring best practices for performance and code maintainability.

Key Features

Standardized patterns for custom Rack middleware development
2 GitHub stars
Advanced implementations for authentication, logging, and caching
Conditional middleware execution based on environment or URL path
Structured error handling and request transformation utilities
Optimized middleware stack ordering for security and performance

Use Cases

Setting up structured JSON logging and performance monitoring for APIs
Implementing custom token-based authentication and authorization layers
Managing complex request transformations and security header injections

About

Key Features

Standardized patterns for custom Rack middleware development
2 GitHub stars
Advanced implementations for authentication, logging, and caching
Conditional middleware execution based on environment or URL path
Structured error handling and request transformation utilities
Optimized middleware stack ordering for security and performance

Use Cases

Setting up structured JSON logging and performance monitoring for APIs
Implementing custom token-based authentication and authorization layers
Managing complex request transformations and security header injections