node.js - Mongoose - Query returns nothing -


i have following query:

app.get('/matches/:latmin/:latmax/:lonmin/:lonmax', function(req, res){     var matches = city.find({         "latitude": {$gt : string(req.param.latmin), $lt : string(req.params.latmax) },          "longitude" : {$gt : string(req.param.lonmin), $lt : string(req.param.lonmax)}     });     matches.exec(function(err, match){                  if(err){                     console.log(err);                      return res.send(err);                  }                 console.log(match);                 res.json(match);             });      });

here schema:

var mongoose = require('mongoose'); var schema = mongoose.schema;  module.exports = mongoose.model('city', new schema({     zip : {type : string, default: ''},     latitude : {type : string, default: ''},     longitude : {type: string, default: ''},     city : {type: string, default: ''},     state : {type: string, default: ''},     county : {type: string, default: ''} }), 'locations');

when run query in mongo shell, expected results sent. however, log in above quotes returns []. there wrong i'm doing here?

i don't know if want use req.param or typo. anyway, req.param deprecated , should use req.params.

i have set scenario , queries working. replace var matches in code following:

var matches = city.find({     "latitude": {$gt : string(req.params.latmin), $lt : string(req.params.latmax) },      "longitude" : {$gt : string(req.params.lonmin), $lt : string(req.params.lonmax)} });

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