salix/services/db/testing_fixtures.js

let mysql = require('mysql2');

let connection = mysql.createConnection({
    multipleStatements: true,
    host: 'localhost',
    user: 'root',
    password: 'root',
    database: 'salix'
});

let errorHandler = callback => {
    return error => {
        if (error)
            throw error;
        callback();
    };
};

let insertFixtures = async function(sqlStatements) {
    try {
        if (sqlStatements.deletes.length)
            await connection.query(sqlStatements.deletes);
        if (sqlStatements.inserts.length)
            await connection.query(sqlStatements.inserts);
        if (sqlStatements.updates.length)
            await connection.query(sqlStatements.updates);
    } catch (error) {
        errorHandler(error);
    }
};

connection.connect();

module.exports = function restoreFixtures(sqlStatements) {
    connection.query('SET FOREIGN_KEY_CHECKS = 0', () => {
        insertFixtures(sqlStatements);
    });
};