text: var express = require("express");
  var path = require("path");
  var cookieParser = require("cookie-parser");
  var logger = require("morgan");
  
  var indexRouter = require("./routes/index");
  var usersRouter = require("./routes/users");
  var booksRouter = require("./routes/books");
  var ordersRouter = require("./routes/orders");
  
  var app = express();
  
  app.use(logger("dev"));
  app.use(express.json());
  app.use(express.urlencoded({ extended: false }));
  app.use(cookieParser());
  app.use(express.static(path.join(__dirname, "public")));
  
  app.use("/", indexRouter);
  app.use("/users", usersRouter);
  app.use("/books", booksRouter);
  app.use("/orders", ordersRouter);
  
  module.exports = app;
  