javascript - Access Backbone fetch parameters -

i need able pass server info when calling fetch on backbone collection. on front-end have code, passing data:{} fetch function along success , error callbacks. looking @ docs backbone fetch:

http://backbonejs.org/#collection-fetch

perhaps not passing in parameters correctly fetch function? perhaps should in array []...

var lineupcollection = new lineupcollection([]); var loadteamsonpageload = (function() {      lineupcollection.url = '/api/lineups';     lineupcollection.fetch(         {             processdata: true,             data: {             team_id:$("#team_id").attr("value")         }         },         {             success: function (result) {                 if(window.teamdashboardtableview === undefined){                     window.teamdashboardtableview = new teamdashboardtableview({el: $("#team-dashboard-table-div")});                 }                 window.teamdashboardtableview.render();             },             error: function (err) {                 settimeout(function () {                     alert('error fetching lineupcollection - ' + err.message);                 }, 1);              }         }     ); })(); 

which load backbone collection table.

it's call method on back-end:

exports.getbackbonelineups = function(req,res,next){      var user_id = req.mainuser._id;     console.log('req.params',req.params); //empty {}     console.log('req.team',req.team); //undefined     console.log('team_id',req.team_id); //undefined     console.log('req.data',req.data); //undefined     console.log('req.body',req.body); //empty {}     var team_id = req.team._id;  //undefined exception, can't read property _id of undefined     var system_db = req.system_db;     var lineup = lineupmodel.getnewlineup(system_db,user_id);      lineup.find({team_id:team_id}, function (err, lineups) {         if (err) {             return next(err);         }         res.json(lineups);     });  }; 

however, totally failing far how access data supposedly past server client. can't find example , getting tired of guessing. what's best way this?

edit: tried passing {data:{}, success: function(), error: function()} in same javascript object, didn't work.

fetch takes 1 argument (see http://backbonejs.org/#collection-fetch). instead, should alter backend specify team id in resource's url. example:

lineupcollection.url = function(){ return '/api/lineups?team_id=' + this.team_id; }; lineupcollection.team_id = $("#team_id").attr("value"); lineupcollection.fetch({ success: ..., error: ...});