有没有一种方法可以在express.js的网址路由中执行动态键/值参数

Question

I am looking for a way (and hoping there is one available already) to read dynamically routed parameters in nodejs. (Like the way Zend Framework 1 default router did).

So I want to have something like this:

app.get('/resource/:key/:value/:anotherkey/:differentvalue', function(req, res) {
    return res.send('This will print the :differentvalue: '+req.params.anotherkey);
});

But then without having to define all different keys and values

Answer 1

Try

app.get('/resource/*', function(req, res) {
    var list = req.path.split('/').slice(2); // Slice to leave off '/resource/'
    var obj {};
    async.whilst(
        function() { return list.length > 0 },
        function(callback) {
            obj[list.shift()] = list.shift();
        },
        function(err) { // return your obj here or do whatever else you need to do }
    );
});

Answer 2

I would use the querystring for this particular usecase.

So given a URL like this: myapp.com/search/?filter_one=param&filter_two=param2

And then use the URL module in node.

var url = require('url');
var parsed_url = url.parse(request.url, true);
var querystring_object = parsed_url.query
//{filter_one: "param", filter_two: "param2"}
//and that object is quite easier to hand off to elastic search