Add a Mongo GeoJSON 2dsphere index on LoopbackJs' attribute GeoPoint

indexing, loopbackjs, mongodb

Solution

The only solution I found to add the 2dsphere index is to add a new attribute `geopoint_mongo` which is an array `[lng, lat]` .

Here's the script I used to convert the datas:

NsUser.createMongoGeoloc = function (cb) {
        NsUser.find(function (err, users) {
            var count = 0;
            users.forEach(function (user) {
                var change = false;
                if (user.geopoint && user.geopoint.lat && user.geopoint.lng) {
                    count++;
                    user.geopoint_mongo = [user.geopoint.lng, user.geopoint.lat];
                    change = true;
                }
                if (change) {
                    NsUser.upsert(user);
                }
            });
            cb(err, count);
        });
    };

    NsUser.remoteMethod(
            'createMongoGeoloc',
            {
                description: 'Update the Geolocation for NsUser',
                returns: {arg: 'count', type: 'number'},
                http: {verb: 'put'}
            }
    );

Then adding the mongo index did the trick:

db.NsUser.createIndex({geopoint_mongo:"2dsphere"})

But as you can see it does not really answer the question - it is just a workaround.

Problem

Original source