Remove ActiveStorage routes from Rails 6

Question

I removed ActionStorage from config/application.rb yet I see these routes when I run rake routes | less.

I have nothing set up on my /config/routes.rb...

                   Prefix Verb URI Pattern                                                                              Controller#Action
       rails_service_blob GET  /rails/active_storage/blobs/:signed_id/*filename(.:format)                               active_storage/blobs#show
rails_blob_representation GET  /rails/active_storage/representations/:signed_blob_id/:variation_key/*filename(.:format) active_storage/representations#show
       rails_disk_service GET  /rails/active_storage/disk/:encoded_key/*filename(.:format)                              active_storage/disk#show
update_rails_disk_service PUT  /rails/active_storage/disk/:encoded_token(.:format)                                      active_storage/disk#update
     rails_direct_uploads POST /rails/active_storage/direct_uploads(.:format)                                           active_storage/direct_uploads#create

Anyone know how I can remove these?

Answer 1

Two changes are needed to remove the ActiveStorage routes from an existing Rails app:

First, in config/application.rb, comment out active_storage/engine and action_text/engine:

require_relative 'boot'

require "rails"
# Pick the frameworks you want:
require "active_model/railtie"
require "active_job/railtie"
require "active_record/railtie"
# require "active_storage/engine"
require "action_controller/railtie"
require "action_mailer/railtie"
# require "action_text/engine"
require "action_cable/engine"
require "rails/test_unit/railtie"

Then, in each environment config file (e.g. config/development.rb), comment out config.active_storage.service:

# Store uploaded files on the local file system (see config/storage.yml for options).
# config.active_storage.service = :local

This will remove the ActiveStorage routes:

$ rails routes
You don't have any routes defined!

Please add some routes in config/routes.rb.

For more information about routes, see the Rails guide: https://guides.rubyonrails.org/routing.html.

Answer 2

Set the draw_routes config to false on your application.rb config file https://github.com/rails/rails/blob/439d4995c1dab475b576fcb19ea95ae37e0ed222/guides/source/configuring.md#configuring-active-storage

config.active_storage.draw_routes = false

EDIT: as of now, the current stable release (6.0-stable) does not support this option, it's on the master branch and should work on the next release

Answer 3

There is an "official" way to do this, which is built-in into Rails. If you create new project with

$ rails new dummy_project --skip-active-storage

you can find in the newly created config/application.rb exactly what you need (Rails 6.0.1 but works since 5.2):

require "rails"
# Pick the frameworks you want:
require "active_model/railtie"
require "active_job/railtie"
require "active_record/railtie"
# require "active_storage/engine"
require "action_controller/railtie"
require "action_mailer/railtie"
# require "action_mailbox/engine"
# require "action_text/engine"
require "action_view/railtie"
require "action_cable/engine"
require "sprockets/railtie"
require "rails/test_unit/railtie"

Replace require 'rails/all' with the above snippet and you should be good to go.