Express routes parameters
Basically, your declared routes are documented in the Express documentation.
The second route is resolved by a URL like /api/choice/hello where 'hello' is mapped into the req object object as:
router.get('/api/choice/:id', function (req, res) { console.log("choice id is " +req.params.id);});What you are actually trying is mapping query parameters.A URL like /api/choice/?id=1 is resolved by the first router you provided. Query parameters are easy to mapped against the request as:
router.get('/api/choice', function (req, res) { console.log('id: ' + req.query.id); //get the whole query as! var queryStuff = JSON.stringify(req.query); console.log(queryStuff)});