Mongoose - Query returns nothing - node.js

Question

I have the 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 is my 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 I run the query in the Mongo shell, the expected results are sent. However, the log in the above quotes returns []. Is there something wrong I'm doing here?

Answer 1

I don't know if you want to use req.param or it is just a typo. Anyway, req.param is deprecated and you should use req.params.
I have set up your scenario and queries are working. Replace the var matches in your code for the 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)}
});