Answers for "express router how to"

1

widlicard in express router

//This route path will match acd and abcd.
app.get('/ab?cd', function (req, res) {
  res.send('ab?cd')
})
//This route path will match abcd, abbcd, abbbcd, and so on.
app.get('/ab+cd', function (req, res) {
  res.send('ab+cd')
})
//This route path will match abcd, abxcd, abRANDOMcd, ab123cd, and so on.
app.get('/ab*cd', function (req, res) {
  res.send('ab*cd')
})
//This route path will match /abe and /abcde.
app.get('/ab(cd)?e', function (req, res) {
  res.send('ab(cd)?e')
})
//This route path will match anything with an “a” in it.
app.get(/a/, function (req, res) {
  res.send('/a/')
})
//This route path will match butterfly and dragonfly, 
//but not butterflyman, dragonflyman, and so on.
app.get(/.*fly$/, function (req, res) {
  res.send('/.*fly$/')
})
Posted by: Guest on May-20-2020
3

express route parameters

Route path: /users/:userId/books/:bookId
Request URL: http://localhost:3000/users/34/books/8989
req.params: { "userId": "34", "bookId": "8989" }
Posted by: Guest on July-05-2020
0

Basic Routing Express.js

app.get('/', function (req, res) {
  res.send('Hello World!')
})
Posted by: Guest on May-11-2021

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