express route parameters

JavaScript
app.get('/users/:userId/books/:bookId', function (req, res) {
  res.send(req.params)
})
Route path: /users/:userId/books/:bookId
Request URL: http://localhost:3000/users/34/books/8989
req.params: { "userId": "34", "bookId": "8989" }
app.get('/users/:userId/books/:bookId', function (req, res) {
  res.send(req.params)
})
app.get('/',function(req,res)
{
    res.send("Route path at base address");
});var express = require('express');
var http = require('http');
var app = express();Route path: /flights/:from-:to
Request URL: http://localhost:3000/flights/LAX-SFO
req.params: { "from": "LAX", "to": "SFO" }

Source

Also in JavaScript: