The request object provides details about the incoming request. Use it to query information about the request, such as params and headers.

The object inherits from Rack::Request, which provides a range of methods like #path_info, #content_type and #get_header.

Response

The response object represents your action’s outgoing HTTP response.

Use it to control how your action responds to a request by setting an outgoing status, body or headers.

By default, the response status is 200. Setting the response status via response.status is useful when setting statuses like 200 OK, 201 Created and .

In situations where you want an action to halt, for example to return a 401 Unauthorized response, use the action’s halt method. To return a redirect, use response.redirect_to("/path"). See for details.

Response format