How to place several orders in just one single transaction?

[Danilo-Araujo-Silva]

How can we place several orders in just one transaction? Guaranteeing this way that it returns success only if all of them succeeded?

For example, we have this documentation here: https://github.com/project-serum/serum-ts/tree/master/packages/serum

But we only have an example to be placing a single order at a time, how can we achieve the proposed above? This is very needed for some cases.

Maybe we could have something like:

await market.placeOrder(connection,
[
  {
    owner,
    payer,
    side: 'buy', // 'buy' or 'sell'
    price: 123.45,
    size: 17.0,
    orderType: 'limit', // 'limit', 'ioc', 'postOnly'
  },
  {
    owner,
    payer,
    side: 'buy', // 'buy' or 'sell'
    price: 123.45,
    size: 17.0,
    orderType: 'limit', // 'limit', 'ioc', 'postOnly'
  },
  ...
]);