我正在構建這個學校項目，我們必須在 NodeJs 和自由選擇的前端中創建自己的 API。我寫了以下代碼：[在公共地圖] app.jsfunction getAll() {    console.log("Get all")    makeRequest("/poems", "GET")} async function getRandomPoem() {    const ids = [1, 2, 3, 4, 5, 6, 7]    const randomId = ids[Math.floor(Math.random() * ids.length)]    const arrayofPoems = await fetch("/poems/" + randomId, {method: "GET"})    const data = await arrayofPoems.json()    const titleBox = document.getElementById("title")    const authorBox  = document.getElementById("author")    const textBox = document.getElementById("text")    titleBox.innerText = data.title    authorBox.innerText = data.author  textBox.innerText = data.text}function addPoem() {    event.preventDefault();    let title = document.getElementById("titleInput").value    let author = document.getElementById("authorInput").value    let text = document.getElementById("textInput").value    let newPoem = [{        id: 8,        title: "Aaa",        author: "Ccc",        text: "Ddd"    }]    makeRequest("/poems/", "post", newPoem)}async function makeRequest(url, reqMethod, body) {        const response = await fetch(url, {      //  headers = { "Content-Type": "application/json" },        method: reqMethod,        body:JSON.stringify(body)    })    console.log(response)    const data = await response.json()    console.log(data)}[這里是對本地服務器的請求] server.jsconst express = require('express');const { poems } = require('./Poems/poemsArray');const app = express();const port = 8080;const allPoems = require('./Poems/poemsArray')app.use(express.json())app.use("/", express.static('public'))app.listen(port, console.log(`App listening on port ${port}`))