Create mostVotedMaps.js

const path = require('path'),

    scriptName = path.basename(__filename).replace(/\.js$/i,'');

/**

 * @param {import('express').Express} app

 * @param {import('mysql').Connection} sql

 */

module.exports = function(app, sql, token, errorHandler) {

    app.get('/'+scriptName, function(req, res) {

        sql.query('SELECT map, COUNT(*) AS votes FROM votes GROUP BY map ORDER BY votes DESC', (err, sqlRes)=>{

            if (err) {

                console.log(err);

                errorHandler(res, 500, 'Internal server error');

            } else {

                let maps = {};

                for (let i = 0; i < sqlRes.length; i++) {

                    maps[sqlRes[i].map] = sqlRes[i].votes;

                }

                res.json(maps);

            }

        });

    });

};

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