Dynamic routing in Node.js

Question

I want to create dynamic stubs as webservices. My idea is to load at every request a definition file and return data for corresponding URL. The definition file could look like this:

/api/users {users:["john", "jack", "jake"]}
/api/users/1 {user:"john"}
/api/some-data/1 {data:"some data"}

In an application I created on behalf of a tutorial I find:

router.post('/some-irl', function (req, res) {
    //some code
    return {some JSON}
});

But this definition looks static to me, which should be there before I start Node.js Is it possible to define /some-irl at the time then request occures?

EDIT

Actually, I was intending to do somehting like this: https://github.com/typicode/json-server but it is already there!

Take a look at doc - I'm assuming you use express and route path can have mini regex-like matching where you can name parameter, make it optional or selective, etc... — edin-m
– edin-m, Commented Dec 16, 2015 at 23:57

TbWill4321 · Accepted Answer · 2015-12-16 22:30:22Z

2

You can attach a use middleware, which can check the path and decide whether to handle it or pass it on:

router.use(function(req, res, next) {
    // req.path
    // decide what to do
    // respond or next()
});

answered Dec 16, 2015 at 22:30

TbWill4321

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Nir Levy · Accepted Answer · 2015-12-16 22:30:09Z

1

you can define variables in the routes, use : before the variable name to define it, and then you'll get the value in req.params:

route.get('/api/users/:user/', function (req, res) {
   var username = req.params.user;
});

answered Dec 16, 2015 at 22:30

Nir Levy

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