node.js - geoNear() is not working as expected when using mongoose -

i'm using mongodb , mongoose odm app. have document holding location restaurant. model (schema) this:

var locationschema = new mongoose.schema({     name: {type:string, required:true},     address: string,     coords: {type:[number], index:'2dsphere', required:true}, }); 

and here sample data:

    "_id" : objectid("56b39d9673ff055a098dee71"),     "name" : "holycow steakhouse",     "address" : "somewhere",     "coords" : [         106.7999044,         -6.2916982     ] 

then use mongoose restaurant location somewhere within approximately 2 km restaurant. read mongodb doc have supply maxdistance param in radiance , distancemultiplier earth radius, put following code controller:

var point = {         type: "point",         coordinates: [106.8047355, -6.2875187] // test data, approximately 2 km restaurant     }      var geooptions = {         spherical: true,         num: 10,         maxdistance: 5 / 6371 , // set maximum distance 5 km. make sure found place.         distancemultiplier: 6371     }  loc.geonear(point, geooptions, function(err, results, stats){             var locations = [];             if(err){                 console.log(err);                 sendjsonresponse(res, 404, err);             } else {                 results.foreach(function(doc){                     locations.push({                        distance: doc.dis,                        name: doc.obj.name,                        address: doc.obj.address,                        _id: doc.obj._id                    });                });                sendjsonresponse(res, 200, locations);                  }          }); 

but failed find restaurant. have read docs 2 hours, still have no clue. what's wrong code?

try this:

var geooptions = {     spherical: true,     num: 10,     maxdistance: 5 * 1000 , // convert kilometers meters } 

i think reading same book. code familiar, , encountered same problem.

your code not working because assume maxdistace using unit radians. no, naxdistance using meters. need remove distancemultiplier because convert maxdistance radians, not right unit.

try link: mongodb docs $maxdistance