JSON::Encodable

Make a class encodable into JSON format.

Usage

1. Include JSON::Encodable module
2. Call .property method with property name
3. Then the instance will be able to respond to to_json method

#to_json

class Blog
  include JSON::Encodable

  property :id
  property :title
  property :username

  def id
    1
  end

  def title
    "wonderland"
  end

  def username
    "alice"
  end
end

Blog.new.to_json
#=> '{"id":1,"title":"wonderland","username":"alice"}'

#as_json(options = {})

You can also call .as_json method with :except and :only options.

Blog.new.as_json(only: [:id, :username])
#=> { "id" => 1, "username" => "alice" }

Blog.new.as_json(except: :username)
#=> { "id" => 1, "title" => "wonderland" }