我目前正在开发 FreeCodeCamp Timestamp Microservice 项目,并且在实施过程中遇到了问题。虽然大多数要求都成功通过,但我在处理空日期参数的测试用例方面遇到了麻烦。具体如下:
通过测试:
失败的测试:
// index.js
// where your node app starts
// init project
var express = require('express');
var app = express();
dotenv = require('dotenv');
dotenv.config();
// enable CORS (https://en.wikipedia.org/wiki/Cross-origin_resource_sharing)
// so that your API is remotely testable by FCC
var cors = require('cors');
app.use(cors({ optionsSuccessStatus: 200 })); // some legacy browsers choke on 204
// http://expressjs.com/en/starter/static-files.html
app.use(express.static('public'));
// http://expressjs.com/en/starter/basic-routing.html
app.get("/", function (req, res) {
res.sendFile(__dirname + '/views/index.html');
});
const isInvalidDate = (date) => date.toUTCString() === "Invalid Date"
// your first API endpoint...
app.get("/api/:date", function (req, res) {
let date = new Date(req.params.date)
if (isInvalidDate(date)) {
date = new Date(+req.params.date)
}
if (isInvalidDate(date)) {
res.json({ error: "Invalid Date" })
return;
}
res.json({
unix: date.getTime(),
utc: date.toUTCString()
});
});
app.get("/api", (req, res) => {
res.json({
unix: new Date().getTime(),
utc: new Date().toUTCString()
})
})
// listen for requests :)
var listener = app.listen(process.env.PORT, function () {
console.log('Your app is listening on port ' + listener.address().port);
});
我期望当向 /api/ 或 /api 发出请求时,服务器将以 Unix 和 UTC 格式作为 JSON 对象返回当前时间。
首先,您需要将空日期参数
(/api)
的路由放置在带有日期参数 (/api/:date)
的路由之前,其次,对于 date
问题,您需要为空 date
参数添加适当的处理。
// index.js
// where your node app starts
// init project
var express = require('express');
var app = express();
dotenv = require('dotenv');
dotenv.config();
// enable CORS (https://en.wikipedia.org/wiki/Cross-origin_resource_sharing)
// so that your API is remotely testable by FCC
var cors = require('cors');
app.use(cors({ optionsSuccessStatus: 200 })); // some legacy browsers choke on 204
// http://expressjs.com/en/starter/static-files.html
app.use(express.static('public'));
// http://expressjs.com/en/starter/basic-routing.html
app.get("/", function (req, res) {
res.sendFile(__dirname + '/views/index.html');
});
const isInvalidDate = (date) => date.toUTCString() === "Invalid Date"
// your first API endpoint...
app.get("/api", (req, res) => {
const currentDate = new Date();
res.json({
unix: currentDate.getTime(),
utc: currentDate.toUTCString()
});
});
app.get("/api/:date", function (req, res) {
let date = req.params.date;
// Handle an empty date parameter
if (!date) {
date = new Date();
} else {
date = new Date(isNaN(date) ? date : parseInt(date));
}
if (isInvalidDate(date)) {
res.json({ error: "Invalid Date" });
return;
}
res.json({
unix: date.getTime(),
utc: date.toUTCString()
});
});
// listen for requests :)
var listener = app.listen(process.env.PORT, function () {
console.log('Your app is listening on port ' + listener.address().port);
});