def create
      # TODO: use the has_many associations -> @app.reviews.build
      @app_review = review_klass.new(review_params)
      if @app_review.save
        after_save
        render :show
      else
        render json: @app_review.errors, status: :bad_request
      end
    end
def create
      # TODO: use the has_many associations -> @app.reviews.build
      @app_review = review_klass.new(review_params)
      if @app_review.save
        after_save
        render :show
      else
        render json: @app_review.errors, status: :bad_request
      end
    end
POST /mnoe/jpi/v1/marketplace/:id/app_reviews