Conditional fields support about blueprinter HOT 4 CLOSED

  # controller
  class EmployeesController < ApplicationController
    def show
        employee = Employee.find(:id)
        view = current_user == employee.supervisor ? :supervisor : :employee
        render json: Blueprinter.render(employee, view: view)
    end
  end

# Blueprint
class EmployeeBlueprint < Blueprinter::Base
  identifier :id
  view :employee do
    fields :first_name, :last_name
  end
  view :supervisor do
    include_view :employee #inherit fields from :employee
    field: :salary
  end
end

EmployeeBlueprint.render([
  Employee.create(supervisor: first_supervisor),
  Employee.create(supervisor: second_supervisor)
])