OpenApi

open_api provides PORO and serializers for OpenAPI and it supports OpenAPI v3.0.1.

Add this line to your application's Gemfile:

gem 'open_api'

And then execute:

$ bundle

Or install it yourself as:

$ gem install open_api

It has two use case:

1. Serializing from PORO to yaml
2. Deserializing yaml to PORO

spec = OpenApi::Specification.new(
  openapi: "3.0.1",
  info: OpenApi::Info.new(
    title: "Awesome API",
    description: "It provides something awesome",
    version: "1.0.0",
  ),
  paths: OpenApi::Paths.new(
    "/pets": OpenApi::PathItem.new(
      get: OpenApi::Operation.new(
        description: "Returns all pets from the system that the user has access to",
        responses: OpenApi::Responses.new(
          "200": OpenApi::Response.new(
            description: "A list of pets.",
            content: {
              "application/json": OpenApi::MediaType.new(
                schema: OpenApi::Schema.new(
                  type: "array",
                  items: OpenApi::Reference.new(ref: "#/components/schemas/pet"),
                )
              )
            }
          )
        )
      )
    )
  )
)

yaml = OpenApi::Serializers::YamlSerializer.serialize(spec)
File.write("spec.yml", yaml)

yaml = File.read("spec.yml")
spec = OpenApi::Serializers::YamlSerializer.deserialize(yaml)

After checking out the repo, run bin/setup to install dependencies. Then, run rake spec to run the tests. You can also run bin/console for an interactive prompt that will allow you to experiment.

To install this gem onto your local machine, run bundle exec rake install. To release a new version, run bundle exec rake bump:patch to update the version, and then run bundle exec rake release, which will create a git tag for the version, push git commits and tags, and push the .gem file to rubygems.org.

Bug reports and pull requests are welcome on GitHub at https://github.com/wantedly/open_api. This project is intended to be a safe, welcoming space for collaboration, and contributors are expected to adhere to the Contributor Covenant code of conduct.

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

Everyone interacting in the OpenApi project’s codebases, issue trackers, chat rooms and mailing lists is expected to follow the code of conduct.