ctrl.js

SomeService.placeSearch(options).then(function(results){
    
    res.json(results);
    
})

service.js

var Promise = require('bluebird');

exports.placeSearch = function( options )
{
    parameters = {
        location : [ options.lat, options.lon ],
        types: options.placeType
    }
    
    return new Promise(function(resolve,reject){
        
        googlePlaces.placeSearch(
            parameters,
            function( error, response )
            {
                if (error)
                {
                    sails.log.error('Place search failed due to error' + error.message );
                    throw error;
                }
                else
                {
                    return resolve(response.results);
                }
            });
    })
    
};