instance method `format`

Ruby on Rails 7.2.3

Since v3.0.20

Available in: v3.0.20 v3.1.12 v3.2.22.5 v4.0.13 v4.1.16 v4.2.9 v5.2.8.1 v6.0.6 v6.1.7.10 v7.0.10 v7.1.6 v7.2.3 v8.0.4 v8.1.2

Compare with:

format(_view_path = nil)

Returns the MIME type for the format used in the request.

# GET /posts/5.xml
request.format # => Mime[:xml]

# GET /posts/5.xhtml
request.format # => Mime[:html]

# GET /posts/5
request.format # => Mime[:html] or Mime[:js], or request.accepts.first

Parameters

_view_path opt = nil

Source

# File actionpack/lib/action_dispatch/http/mime_negotiation.rb, line 68
      def format(_view_path = nil)
        formats.first || Mime::NullType.instance
      end

Defined in actionpack/lib/action_dispatch/http/mime_negotiation.rb line 68 · View on GitHub · Improve this page · Find usages on GitHub

Defined in ActionDispatch::Http::MimeNegotiation

Signature

Parameters