SimpleJsonApi

A gem to render json following the jsonapi spec.

Installation

Add this line to your application's Gemfile:

gem 'simple_json_api'

And then execute:

$ bundle

Or install it yourself as:

$ gem install simple_json_api

Rails Integration

Use the gem simple_json_api-rails

Usage

Define serializers

A serializer will need to be created for each resource. The serializer will defined the attributes and associations of the serialized json.

class ProjectSerializer < SimpleJsonApi::ResourceSerializer
  serializes :projects, model: Project
  attribute :id
  attribute :name, key: :project_name
  attribute :description
  attribute :position
  has_one :todolist
  has_many :tags
  def href
    "http://example.com/projects/#{_object.id}"
  end
end

Serializers are subclasses of SimpleJsonApi::ResourceSerializer. The serializes method defines the root_class for the object, specifying the model is optional, but may be necessary when the serializer cannot be determined for polymorphic associations. attribute defines the attributes of the serializer, the optional key allows the name to be changed during serialization. Associations are declared with has_many, has_one, and belongs_to. These can optionally set polymorphic: true. Also if the serializer cannot be determined by the name of the association, that is the name doesn't match any registered serializers, then the serializer parameter will need to be set.

Using serializers

render json: SimpleJsonApi.render(
                model: @projects,
                serializer: ProjectSerializer,
                fields: 'id,name',
                include: 'todolist'
              )

When rendering the model is the AR data to be serialized, if it is an Array the ArraySerializer will be used for the top collection. fields and include follow the jsonapi spec. Include will be the associations to be included in the generated json. Fields is the list of attributes that will be included. The primary key will always be included.

TODO

Better documentation
Handle meta section
Handle links section
Optimize queries (caching?)
Handle PUTS/POSTS/DELETES

Contributing

Fork it ( https://github.com/[my-github-username]/simple_json_api/fork )
Create your feature branch (git checkout -b my-new-feature)
Commit your changes (git commit -am 'Add some feature')
Push to the branch (git push origin my-new-feature)
Create a new Pull Request

License

mjmelnick/simple_json_api

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