Railsful

A small but helpful collection of concerns and tools to create a restful JSON API compliant Rails application.

Add these lines to your application's Gemfile:

# fast_jsonapi is used to serialize objects.
gem 'fast_jsonapi'
# kaminari needed for pagination.
gem 'kaminari'

gem 'railsful'

And then execute:

$ bundle

Or install it yourself as:

$ gem install railsful

In order to serialize your objects it is necessary that their serializer follow the same naming convention and modules as the object to be serialized.

# app/models/some_module/user.rb
module SomeModule
  class User
    ...
  end
end

# app/serializers/some_module/user_serializer.rb
module SomeModule
  class UserSerializer
    ...
  end
end

After that you can use render json: ... without specifying the serializer:

module SomeModule
  class UserController
    def index
      render json: User.all
    end
  end
end

Will result in:

GET /some_module/users
{
  "data": [
    { "type": "user", "id": 1, "attributes": { ... } },
    { "type": "user", "id": 2, "attributes": { ... } }
  ]
}

If you want to use another serializer you can do this by specifying a serializer key inside the options:

render json: User.first, serializer: 'author'

# or

render json: User.first, serializer: AuthorSerializer

For deserialization of jsonapi compliant request all controllers that inherit from ActionController can use the #deserialized_params method.

class UsersController < ApplicationController
  def create
    user = User.new(user_params)

    # Return success/fail ...
  end

  private

  def user_params
    deserialized_params.permit(:first_name, :last_name, ...)
  end
end

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, update the version number in version.rb, 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/hausgold/railsful.

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