geojsonpoint.js

var mongoose = require('mongoose');
var Schema = mongoose.Schema;
var assert = require('assert')

console.log('\n===========');
console.log('    mongoose version: %s', mongoose.version);
console.log('========\n\n');

var dbname = 'testing_geojsonPoint';
mongoose.connect('localhost', dbname);
mongoose.connection.on('error', function () {
  console.error('connection error', arguments);
});

// schema

var schema = new Schema({
  loc: {
      type: { type: String }
    , coordinates: []
  }
});
schema.index({ loc: '2dsphere' });
var A = mongoose.model('A', schema);

mongoose.connection.on('open', function () {
  A.on('index', function (err) {
    if (err) return done(err);
    A.create({ loc: { type: 'Point', coordinates: [-179.0, 0.0] }}, function (err) {
      if (err) return done(err);
      A.find({ loc: { $near: { type: 'Point', coordinates:[-179.0, 0.0] }}}, function (err, docs) {
        if (err) return done(err);
        console.log(docs);
        done();
      })
    })
  })
});

function done (err) {
  if (err) console.error(err.stack);
  mongoose.connection.db.dropDatabase(function () {
    mongoose.connection.close();
  });
}