Active Model Serializer not working as expected

Question

I've the folloing active model serializer but is not working as expected. gem 'active_model_serializers', '~> 0.10.x'

class UserSerializer < ActiveModel::Serializer
  attributes :id
  has_many :task
end

controller class method

def show
    user = User.find(params[:id]);
    render json:{status:'success', error:false, data:user},status: :ok
end

And model class

class User < ApplicationRecord

  devise :database_authenticatable, :registerable,
         :recoverable, :rememberable, :validatable
end

This gives the output

{
    "status": "success",
    "error": false,
    "data": {
        "id": 2,
        "full_name": "sohail ahmad",
        "email": "sohail1@gmail.com",
        "created_at": "2020-03-10T05:41:42.045Z",
        "updated_at": "2020-03-10T05:41:42.045Z"
    }
}

How I get only Id with serializer.

Answer 1

Right now you are not using your UserSerializer in your controller. Your show method should be like this in order to serialize its data.

def show
    user = User.find(params[:id]);
    render json:{status:'success', error:false, data:UserSerializer.new(user)},status: :ok
end