routing

RESTful routes in Rails are defined using the resources method in routes.rb, automatically generating standard endpoints for index, create, show, update, and destroy actions while ensuring minimal API attack surface.

Structuring nested routes in Ruby on Rails involves nesting resource declarations within a parent block, such as placing comments under articles, and explicitly limiting exposed actions like index and create to maintain developer clarity.

Use namespaces to group controllers into specific modules and path prefixes for API routes, whereas scopes alter the URL path without affecting the module structure, ensuring clean controller organization and explicit definitions.

Generate URL path helpers for custom actions by adding member or collection blocks within your resources declaration, creating explicit path helpers that correspond directly to your defined Rails route URLs.

You can restrict exposed actions when defining resources in routes.rb by passing the only or except options, ensuring your API exposes solely necessary endpoints like index and destroy to minimize the application attack surface.

Rails API routing errors for custom actions typically occur when routes are not explicitly defined in routes.rb using member or collection blocks, requiring explicit declarations rather than relying solely on standard resource defaults.