nodejs rest api

1// My dependencies
2const express = require("express");
3const bodyParser = require("body-parser");
4
5// App configurations
6const app = express();
7// Let the app be able to see the html file that called the server
8app.use(bodyParser.urlencoded({ extended: true })); 
9
10// A RESTFul GET API
11app.get("/", (req, res) => {
12    res.send("Hello World");
13});
14
15// Another RESTFul GET API
16app.get("/api/course", (req, res) => {
17  res.send([1,2,3]);
18});
19
20// My parameters input RESTFul API
21app.get("/test/:year/:month", (req, res) => {
22  // http://localhost:55555/test/2020/5
23  res.send(req.params);
24});
25
26// My parameters input POST RESTFul API
27app.post("/test2/:year/:month", (req, res) => {
28  // Same as the above one but with POST method
29  res.send(req.params);
30});
31
32// Starting up the server
33const port = 55555;
34app.listen(port, () => {
35  console.log(`Server running on port ${port}`);
36});