This gem help you to generate simple documentation api from Rspec tests.

Add this line to your application's Gemfile:

gem 'rspec_generate_doc'

And then execute:

$ bundle

Configure

# spec/rails_helper.rb
...
require 'rspec_generate_doc'
..
RspecGenerateDoc.configure do |config|
  config.docs_dir = 'path/to/docs/dir' # default: "#{Rails.root}/docs"
  config.locale = :ru # default: I18n.default_locale
  config.action_decorator = My::Cool::ActionDecorator # default: RspecGenerateDoc::Decorators::Action
  config.parameter_decorator = My::Cool::ParameterDecorator # default: RspecGenerateDoc::Decorators::Parameter
  config.template_file = '/path/to/my/template.api.erb' # default:  "#{File.dirname(__FILE__)}/templates/slate.md.erb"
  config.file_prefix = 'prefix_to_file_name_' # default:  '_'
  config.file_suffix = '_suffix_to_file_name' # default:  ''
end

Example use

# spec/controllers/user_controller_spec.rb
...
let(:api_params) do
  {
    id: { name: 'alternative id name', description: 'user id', required: true },
    email: { description: 'user email', required: 'if not id' }
  }
end
...

keys description: id | email - Parameter name. name - Parameter name. Default parameter key name. description - description parameter. Default parameter key name. required - is parameter required? If the value type is boolean it will be translated to default language. If the value type is string then return it value.

skip add to api description

...

context 'this case will be skipped' do
  let(:skip_this) {true}
  it(expect(true).to be true)
end
...

alternative name to file and menu

require 'rails_helper'

RSpec.describe UserController, type: :controller, api_name: 'alternative_name' do
...

result

After tests completed file _user_controller.md will be created in docs folder. In format to Slate

Copyright (c) 2016 Igor Kutyavin aka Jokius

Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the "Software"), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions:

The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software.

THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.