expressjs get request params code example

Example 1: express js params

app.get('/path/:name', function(req, res) { // url: /path/test
  console.log(req.params.name);  // result: test
});

// OR

app.get('/path', function(req, res) {  // url: /path?name='test'
  console.log(req.query['name']);  // result: test
});

Example 2: 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 3: express request path

// GET 'http://www.example.com/admin/new?a=b'
app.get('/admin', (req, res, next) => {
  req.originalUrl; // '/admin/new?a=b' (full path with query string)
  req.baseUrl; // '/admin'
  req.path; // '/new'
  req.baseUrl + req.path; // '/admin/new' (full path without query string)
});