You are an expert in writing code in many different languages. Your goal is to perform code completion for the following code, keeping in mind the rest of the code and the file meta data.
    Metadata details:
    filename: stash_controller.rb
    path of file: ./repos/property_web_scraper/app/controllers/property_web_scraper
    
    the code of the file until where you have to start completion: require_dependency 'property_web_scraper/application_controller'

module PropertyWebScraper
  class StashController < ApplicationController
    # below to avoid ActionController::InvalidAuthenticityToken error when posting from chrome extension
    protect_from_forgery with: :null_session

    def show_prop
      fb_instance_id = Rails.application.secrets.fb_instance
    
    def show_prop
      fb_instance_id = Rails.application.secrets.fb_instance_id
      base_uri = "https://#{fb_instance_id}.firebaseio.com/"
      firebase = Firebase::Client.new(base_uri)
      @client_key = params["client_id"]
      @prop_key = params["prop_id"]
      response = firebase.get("props/" + @client_key + "/" + @prop_key )

      @prop = response.body
      # byebug
      # push("todos", { :name => 'Pick the milk', :priority => 1 })
      # response.success? # => true
      # response.code # => 200
      # response.body # => { 'name' => "-INOQPH-aV_psbk3ZXEX" }
      # response.raw_body # => '{"name":"-INOQPH-aV_psbk3ZXEX"}'

      render 'property_web_scraper/stash/show_prop'
    end