对于简单的 RESTful API 应用程序，如何使用 Node Js 和 Express

Question

我正在尝试在 Node JS 和 Express 的帮助下使用 RESTful API 创建一个简单的待办事项应用程序。我希望能够显示整个（已完成的任务）数组以及每个键和值对。const express = require('express');const app = express();const bodyParser = require("body-parser");const port = process.env.PORT || 3000;const data = ("/data.json")app.use(bodyParser);const completedTasks = [    {id:1, task: "wash Car", dateDue:"9/20/2019", priority:2},    {id:2, task: "Walk dog", dateDue:"9/13/2019", priority:2},    {id:3, task: "do laundry", dateDue:"9/23/2019", priority:2},    {id:4, task: "fix faucet", dateDue:"9/14/2019", priority:2},    {id:5, task: "pay bills", dateDue:"9/9/2019", priority:2},    {id:6, task: "do homework", dateDue:"9/15/2019", priority:2},    {id:7, task: "meditate", dateDue:"9/10/2019", priority:2}];// Homepageapp.get("/completedTasks", (req,res) =>{    res.write ('Homepage of ToDo App');    res.write("\nThe Completed tasks listed below: \n");    res.send(completedTasks.map(iterable => {        iterable.task;    }).join('')    )    // res.end()});       app.listen(port, ()=> console.log(`Listening on Port ${port}`));

Answer 1

JSON 对象不能直接打印，需要转换成字符串。

res.write(JSON.stringify(completedTasks)

Answer 2

你可以这样做

...

res.write('Homepage of ToDo App \n');

res.write("The Completed tasks listed below: \n");

completedTasks.map(iterable => {

   res.write(iterable.task +'\n')

});

res.end()