express js get url parameters code example

Example 1: express get params after ?

GET /something?color1=red&color2=blue

app.get('/something', (req, res) => {
    req.query.color1 === 'red'  // true
    req.query.color2 === 'blue' // true
})

Example 2: express get url parameters

app.get('/path/:name', function(req, res) {
  res.send("tagId is set to " + req.params.name);
});

Example 3: express param in url

app.get('/p/:tagId', function(req, res) {
  res.send("tagId is set to " + req.params.tagId);
});

// GET /p/5
// tagId is set to 5

Example 4: node js express url parameters

// http://localhost:8080/api/1
app.get('/api/:version', function(req, res) {
    res.send(req.params.version);
});

Example 5: get url params in express

app.get("/users/:id",(req,res)=>{ // https://domain.com/users/817178
  const id = req.params.id ; //  817178
})
app.get("/users?name=anas",(req,res)=> { // https://domain.com/users?name=anas
const name  = req.query.name ; //anas
})

Example 6: expressjs receive url parameter

URL Parameters
These are information that are passed through the URL like so:

http://example.com/api/users?id=4&token=sdfa3&geo=us