Make Web Server path with Express

+const express = require('express');
+const app = express();
+
+// Corespond to HTTP
+// app.get()
+// app.post()
+// app.put();
+// app.delete()
+
+app.get('/',(req,res)=> {
+	res.send('Hello World');
+});
+
+app.get('/api/courses',(req,res) => {
+	res.send([1,2,3]);
+});
+
+app.listen(3000, ()=> console.log("Listening on port 3000"));
+
+