javascript-promise-advanced.js

getContainers(params, meta) {
    let query = resourceQueries.loadQuery('selectContainers');

    let connection;
    return dbConnect.getConnectionAsync().then((dbConnection) => {
        connection = dbConnection;
        return connection.queryAsync(query, params).then((result) => {
            return resourceParser.parseContainersFromDb(result);
        });
    }).catch((exception) => {
        cmsLogger.error(exception);
        throw new Exception(exception.code);
    }).finally(() => {
        if (connection) connection.release();
    });
}