By default, IDOL Server processes all actions synchronously. In this case, IDOL Server does not respond to the action until it has completed the request. The result of the action is in the response to the request.

With additional configuration, you can also process query actions asynchronously. In this case, IDOL Server responds to the action immediately. The request is added to a queue of actions. The response to the request contains a token. You can use this token to determine whether the request has finished, and obtain the results of the action. To do this, use the QueueInfo action.

You might want to use asynchronous actions to run operations that take a long time, and that do not require an immediate response. For example, you might have synchronous queries to return results to users, and then use an asynchronous action to run a query summary.

Note: Functionality applies to IDOL 10.5 and above.