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My use case is that I have a `Queue` and a `CallbackFunction` defined and I want to add the `CallbackFunction` as the `Queue`’s event source. I’m trying to use the `queue.onEvent` method to do so, but I’m required to give the `onEvent` a name for the source mapping. I would like that name to just be my lambda’s name and the word `Event` at the end of it. How can I achieve that?

This isn’t possible no. If you need to explicitly name a resource in the upstream provider’s api, you can set the name property on that resource but the resource name itself has to be known at runtime 

That makes tooling around Pulumi rather hard to do

The current solution I’m investigating is wrapping Pulumi resources in a custom builder class that will eventually build the Pulumi resources but still leaves me access to the raw properties

I’m getting a sense from the questions you’re asking that you’re using Pulumi as an SDK, are you aware of the state/declarative model of Pulumi? The reason you cant use outputs as resource names is because if you do, the downstream resource can’t be created until the output is resolved, which breaks the dependency graph 

<@UCWG26BH7> I see. I’m not really trying to use Pulumi as a SDK. I guess what I’m trying to do is to build constructs around Pulumi. These constructs just encapsulates logic and configure the underlying resources. Do you think it is a bad pattern? 