fab-manager/app/controllers/api/payment_schedules_controller.rb

# frozen_string_literal: true

# API Controller for resources of PaymentSchedule
class API::PaymentSchedulesController < API::ApiController
  before_action :authenticate_user!
  before_action :set_payment_schedule, only: %i[download]

  def download
    authorize @payment_schedule
    send_file File.join(Rails.root, @payment_schedule.file), type: 'application/pdf', disposition: 'attachment'
  end

  private

  def set_payment_schedule
    @payment_schedule = PaymentSchedule.find(params[:id])
  end
end