how specify in router any value

[Doppy]

Suppose to have this in my library.js

router.get('/user/', controllers.red);

Now I need to specify in the url of router any value that can represent username of user like:
/user/something that represent character

[baris]

Do this

router.get('/user/:username', controllers.red);

controllers.red = function(req, res, next) {
   console.log(req.params.username);
}

[Doppy]

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