What are Route paths?

Q: What are Route paths?

app.get('/', (req, res) => { res.send('root') }) app.get('/about', (req, res) => { res.send('about') }) app.get('/random.text', (req, res) => { res.send('random.text') }) //This route path will match acd and abcd. app.get('/ab?cd', (req, res) => { res.send('ab?cd') }) //This route path will match abcd, abbcd, abbbcd, and so on. app.get('/ab+cd', (req, res) => { res.send('ab+cd') }) //This route path will match abcd, abxcd, abRANDOMcd, ab123cd, and so on. app.get('/ab*cd', (req, res) => { res.send('ab*cd') }) //This route path will match /abe and /abcde. app.get('/ab(cd)?e', (req, res) => { res.send('ab(cd)?e') }) //This route path will match anything with an “a” in it. app.get(/a/, (req, res) => { res.send('/a/') }) //This route path will match butterfly and dragonfly, but not butterflyman, dragonflyman, and so on. app.get(/.*fly$/, (req, res) => { res.send('/.*fly$/') }) //

Difficulty: 4/10

routing, URL parameters, middleware ordering

Route paths define the endpoints at which requests can be made. Route paths can be strings, string patterns, or regular expressions.

Route paths based on strings

Route paths based on string patterns

Route paths based on regular expressions

Scenario Questions

0-2 years experience

1How would you define a route in Express to handle GET requests to '/users/:id' and retrieve the id parameter?
2If you add a route '/users/:id' after a more generic '/users' route, what will happen when a request comes to '/users/123'?
3What response does Express send if no route matches the incoming request path?

Follow-up Questions