Nothing generates on /swagger_doc (Ruby 3 + Rails 6)

[Mati. A]

Hey grape-swagger team!

I'm trying to setup swagger and after adding the gem and the add_swagger_documentation I'm getting no response at /swagger_doc.

ActionController::RoutingError (No route matches [GET] "/swagger_doc"):

I've tried adding a custom mount_path and had no luck either.

Gemfile:

ruby '3.0.0'

gem 'active_interaction', '~> 4.0'
gem 'bootsnap', '>= 1.4.4', require: false
gem 'pg', '~> 1.1'
gem 'puma', '~> 5.0'
gem 'rails', '~> 6.1.1'
gem 'sidekiq', '~> 6.1.3'
gem 'sidekiq-failures', '~> 1.0.0'
gem 'grape', github: 'ruby-grape/grape', ref: 'HEAD'
gem 'grape_on_rails_routes', '~> 0.3.2'
gem 'grape-swagger', '~> 1.3.1'

api/main/api.rb:

module Main
  class API < Grape::API
    prefix :api
    version :v1, using: :path
    format :json

    mount Dummies::API
    add_swagger_documentation
  end
end

[peter scholz]

please update to 1.4.0