Question

I am using rocket pants to render my JSON API.

I’m trying to change the way it renders the JSON by overriding as_json in my model, but somehow, it seems not to change anything in the rocket pants response.

in my controller:

class Api::V1::ProjectsController < RocketPants::Base
  ...
  def show
    expose Project.find(params[:id])
  end
  ...
end

And in my model:

class Project < ActiveRecord::Base
  ...
  def as_json(options = {})
    {"this" => "is not working!"}
  end
  ...
end

What am I missing?

Answer 1

I’ve figured out how to do that. The way rocket pants work is by looking at the serializable_hash method. Overriding it results in a change in the response.

Edit:

The solution I got to:

In the model where I need to add some attributes: simply override the attributes method:

 # Overriding this method is required for the attribute to appear in the API
  def attributes
    info = {} # add any logic that fits you

    super.merge info
  end

In the controller that needs to expose the API I’ve created a new Model class (this is only needed in order to keep different API versions), and overridden the serializable_hash method:

  class Location < ::Location 
    def serializable_hash(options = {})
      super only: [:id, :lat, :long],
            include: [user: {only: ...your attributes here...}]
    end
  end