Help needed to understand how to use durabletask in particular scenario

Hi All,

I am doing some research around different options we have for the project and one of the options we are considering is durabletask framework. The only problem I see is that I am not sure if it can be used in the scenario we need to support. Our workflow will consist of different types of task but one of type it call to "async API". This API call will quickly return 202 but we also expose callback endpoint which will be called later and based on the payload of this call we will continue the flow. I would like to treat "activity' as being completed only in case when we receive callback.

I took a look into samples but can't find such one. Can I somehow use the events mechanism from `TaskOrchestration` class?

Thanks!
/Mateusz