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r2-oas allows generation of OpenAPI Specification (V3) from config/routes.rb in Rails application.

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R2-OAS

Gem Version Build Status Coverage Status Maintainability

Generate api document (OpenAPI) side only from Rails routing.

Provides a rake command to help generate, view, and edit OpenAPI documents.

bundle exec rake routes:oas:init    # initialize
bundle exec rake routes:oas:docs    # generate
bundle exec rake routes:oas:ui      # view
bundle exec rake routes:oas:editor  # edit
bundle exec rake routes:oas:monitor # monitor
bundle exec rake routes:oas:build   # build
bundle exec rake routes:oas:clean   # clean
bundle exec rake routes:oas:analyze # analyze
bundle exec rake routes:oas:deploy  # deploy

💎 Installation

Add this line to your application's Gemfile:

group :development do
  gem 'r2-oas'
end

And then execute:

$ bundle

Or install it yourself as:

$ gem install r2-oas

🔦 Requirements

If you want to view with Swagger UI or edit with Swagger Editor, This gem needs the following:

If you do not have it download as below.

$ docker pull swaggerapi/swagger-editor:latest
$ docker pull swaggerapi/swagger-ui:latest
$ brew cask install chromedriver

🚀 Tutorial

After requiring a gem and Configure Rakefile in your rails project

R2OAS.load_tasks
$ bundle exec rake routes:oas:init
      create	oas_docs
      create	oas_docs/.paths
      create	oas_docs/plugins/helpers
      create	oas_docs/tasks/helpers
      create	oas_docs/plugins/.gitkeep
      create	oas_docs/plugins/helpers/.gitkeep
      create	oas_docs/tasks/.gitkeep
      create	oas_docs/tasks/helpers/.gitkeep
$ bundle exec rake routes:oas:docs
$ bundle exec rake routes:oas:editor

Generate docs

oas_docs

Edit docs

oas_editor

Usage

You can execute the following command in the root directory of rails.
The following are examples of typical command usage.

Full docs are available at https://yukihirop.github.io/r2-oas

Initialize

Initialize r2-oas.

$ bundle exec rake routes:oas:init
      create	oas_docs
      create	oas_docs/.paths
      create	oas_docs/plugins/helpers
      create	oas_docs/tasks/helpers
      create	oas_docs/plugins/.gitkeep
      create	oas_docs/plugins/helpers/.gitkeep
      create	oas_docs/tasks/.gitkeep
      create	oas_docs/tasks/helpers/.gitkeep

Generate

Generate docs.

$ bundle exec rake routes:oas:docs                                                       # Generate docs
$ PATHS_FILE="oas_docs/schema/paths/api/v1/task.yml" bundle exec rake routes:oas:docs    # Generate docs by specify unit paths

Editor

Start Swagger editor.

$ bundle exec rake routes:oas:editor                                                     # Start swagger editor
$ PATHS_FILE="oas_docs/schema/paths/api/v1/task.yml" bundle exec rake routes:oas:editor  # Start swagger editor by specify unit paths

UI

Start swagger ui.

$ bundle exec rake routes:oas:ui                                                         # Start swagger ui
$ PATHS_FILE="oas_docs/schema/paths/api/v1/task.yml" bundle exec rake routes:oas:ui      # Start swagger ui by specify unit paths

Build

Build docs.
Plugin is applied

$ bundle exec rake routes:oas:build

Analyze

Analyze docs.
Reads OpenAPI format document and divides it into several parts to generate a source file

$ OAS_FILE="~/Desktop/swagger.yml" bundle exec rake routes:oas:analyze

📚 Documents

Full docs are available at https://yukihirop.github.io/r2-oas

❤️ Support Rails Version

  • Rails (>= 4.2.5.1)

❤️ Support Ruby Version

  • Ruby (>= 2.5.0)

❤️ Support Rouging

  • Rails Engine Routing
  • Rails Normal Routing

❤️ Support OpenAPI Schema

Full docs are available at https://yukihirop.github.io/r2-oas/#/schema/3.0.0

❗️ Convention over Configuration (CoC)

  • tag name represents controller name and determines paths file name.

    • For example, If controller name is Api::V1::UsersController, tag_name is api/v1/user, then paths file name is api/v1/user.yml
  • _ of components/{schemas,requestBodies, ...} name convert / when save file.

    • For example, If components/schemas name is Api_V1_User, components/schemas file name is api/v1/user.yml.
    • _ is supposed to be used to express namespace.
    • format is Namespace1_Namespace2_Model.
  • . of components/{schemas,requestBodies, ...} name convert / when saving the file.

    • For example, If components/schemas name is api.v1.User, components/schemas file name is api/v1/user.yml.
    • . is supposed to be used to express namespace.
    • format is namespace1.namespace2.Model.

⚙ Configure

All settings are optional

Full docs are available at https://yukihirop.github.io/r2-oas/#/setting/configure

Bundle and Rspec with multiple ruby ​​versions

Bundle

/bin/bash devscript/all_support_ruby.sh bundle
.
.
.
===== Bundle install for All Support Ruby Result =====
ruby-2.5.8: 0
ruby-2.6.6: 0
ruby-2.7.1: 0
======================================================

If specify ruby version 2.6.6 and 2.7.1

/bin/bash devscript/all_support_ruby.sh bundle 2.6.6 2.7.1
.
.
.
===== Bundle install for All Support Ruby Result =====
ruby-2.6.6: 0
ruby-2.7.1: 0
======================================================

Rspec

/bin/bash devscript/all_support_ruby.sh rspec
.
.
.
===== Rspec for All Support Ruby Result =====
ruby-2.5.8: 0
ruby-2.6.6: 0
ruby-2.7.1: 0
=============================================

If specify ruby version 2.6.6 and 2.7.1

/bin/bash devscript/all_support_ruby.sh rspec 2.6.6 2.7.1
.
.
.
===== Rspec for All Support Ruby Result =====
ruby-2.6.6: 0
ruby-2.7.1: 0
=============================================

🔩 CORS

Use rack-cors to enable CORS.

require 'rack/cors'
use Rack::Cors do
  allow do
    origins '*'
    resource '*', headers: :any, methods: [ :get, :post, :put, :delete, :options ]
  end
end

Alternatively, you can set CORS headers in a before block.

before do
  header['Access-Control-Allow-Origin'] = '*'
  header['Access-Control-Request-Method'] = '*'
end

📝 License

The gem is available as open source under the terms of the MIT License.

🤝 Contributing

  1. Fork it ( http://github.com/yukihirop/r2-oas/fork )
  2. Create your feature branch (git checkout -b my-new-feature)
  3. Commit your changes (git commit -am 'Add some feature')
  4. Push to the branch (git push origin my-new-feature)
  5. Create new Pull Request

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r2-oas allows generation of OpenAPI Specification (V3) from config/routes.rb in Rails application.

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