To know about Resource_id

While using GET request for Events as well for the creation of webhooks resource id is must required how would I will get that and what does it mean?

Every item in Asana is referred to as a resource and has a unique id assigned to it; that unique id is referred to as its gid.

resource id simply refers to the gid of the item you’re interested in targeting.

So for example, if you’re wanting to set a webhook at the project level to receive events for every task in that project, the resource id will be the gid of the project you’re interested in tracking.