function preparePokemonPromise(query, params) {
    var dateX = new Date(1970,1,1);
    var date1;
    return new Promise((resolve, reject) => {
        db.query(query, params, (err, results, fields) => {
            if (err) {
                return reject(err);
            } else {
                // Manipulate response.
                for (var i = 0; i < results.length; i++) {
                    let poke = results[i];
                    //let pokemon_id = poke.pokemon_id;

                    poke.x = parseInt(String(poke.latitude).substring(4,9));
                    poke.y = parseInt(String(poke.longitude).substring(4,9));
                    poke.disappear_time = poke.disappear_time.replace(' ', 'T') + 'Z';
                    date1 = new Date(poke.disappear_time);
                    poke.d =  date1.getTime()/ 1000;
                    poke.i = poke.pokemon_id;
                    if(poke.weather_boosted_condition !== null )
                        if(poke.weather_boosted_condition > 0  )
                            poke.w = poke.weather_boosted_condition;
                    if(poke.move_1 != null){
                     poke.s = String( poke.move_1) + "/" + String( poke.move_2) + "/" + String( poke.individual_attack) + "/" + String( poke.individual_defense) + "/" + String( poke.individual_stamina);
                     poke.c =  poke.cp;
                    poke.l = calc_pokemon_level(poke.cp_multiplier);
             }

// LIMPIEZA
delete  poke.disappear_time;
delete  poke.move_1;
delete  poke.move_2;
delete  poke.weather_boosted_condition;
delete  poke.pokemon_id;
delete  poke.individual_attack;
delete  poke.individual_defense;
delete  poke.individual_stamina;
delete  poke.latitude;
delete  poke.longitude;
delete  poke.cp;
delete  poke.cp_multiplier;
}

return resolve(results);
}
});
    });
}