Create dynamodb backup with lambda

lambda-dynamodb-backup.js

const AWS = require("aws-sdk");
AWS.config.update({
    region: process.env.AWS_REGION || 'sa-east-1'
});
const DynamoDB = new AWS.DynamoDB();

const getListTables = () => {
    return new Promise((resolve, reject) => {
        try {
            DynamoDB.listTables((err, data) => {
                if (err) reject(err);
                else resolve(data.TableNames);
            });
        } catch (error) {
            reject(error);
        }
    });
};

const createBackup = tableName => {
    return new Promise((resolve, reject) => {
        try {
            let date = new Date();
            let timestamp = date.getFullYear().toString() + '-' +
                date.getMonth().toString() + '-' +
                date.getDay().toString() + '_' +
                date.getHours().toString() + '-' +
                date.getMinutes().toString();

            DynamoDB.createBackup({
                TableName: tableName,
                BackupName: tableName + '_lambda-backup_' + timestamp
            }, (err, data) => {
                if (err) reject(err);
                else resolve(data);
            });
        } catch (error) {
            reject(error);
        }
    });
};

module.exports.handler = async(event, context, callback) => {
    const list = await getListTables();
    let backupCreated = [];
    console.info('Serao ' + list.length.toString() + ' tabelas');
    list.forEach(async tableName => {
        try {
            let create = await createBackup(tableName);
            console.info('Backup da Tabela ' + create.BackupDetails.BackupName + ' criado.');
            backupCreated.push(create.BackupDetails.BackupName);
        } catch (error) {
            console.error(error);
        }
    });
    callback(null, "done");
};