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Building Modular Rails Applications: A Deep Dive into Rails Engines


I’ve been building Rails applications for the last 10 years on a daily base and almost all of them use active storage now. Users are uploading files and then...

The entire UI is built with vanilla JavaScript and CSS, featuring smooth animations, responsive layouts, and modern design patterns—all without requiring jQuery, Bootstrap, or any other framework. The success of gems like Active Storage Dashboard points to a larger trend in the Rails ecosystem: the need for modular, reusable components that can be easily integrated into existing applications. Sanitize all user inputs Use strong parameters Implement CSRF protection Validate file types and sizes Never expose internal IDs in URLs when possible Rate limit expensive operations

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