content-negotiation

import type { IncomingMessage, ServerResponse } from "http";

const MIN_BYTES = 1024;

const INCOMPRESSIBLE = /^(image|video|audio)\/|application\/(zip|gzip|x-brotli|pdf|octet-stream)/i;

require 'sinatra'
require 'json'
require_relative 'book'
require_relative 'helpers'

set :books, {