how set up a outer in express code example
Example 1: express route parameters
app.get('/users/:userId/books/:bookId', function (req, res) {
res.send(req.params)
})
Example 2: using multiple http verbs on express path request
app.route('/book')
.get(function (req, res) {
res.send('Get a random book')
})
.post(function (req, res) {
res.send('Add a book')
})
.put(function (req, res) {
res.send('Update the book')
})