anyone else run into issues re function serialization and us

Question

anyone else run into issues re function serialization and using a pulumi ComponentResource i refactored a lambda API gateway setup to be composed in a ComponentResource and now when the function is serialized it omits all of the member functions required to do the job

mammoth-art-6111 · Answer

the only function that was serialized was the one passed directly to `CallbackFunction`

mammoth-art-6111 · Answer

but all functions it referenced were not serialized

mammoth-art-6111 · Answer

^ that s basically the constructor that assigns a member function to the Callback Function

mammoth-art-6111 · Answer

i figured out a workaround you ve gotta create a service object with the functions you want to use in the callback instantiate it and then pass it to `aws lambda CallbackFunction` as an arrow function w the service object instance caught in the closure

mammoth-art-6111 · Answer

idk if that would be easy for others to figure out took me a while

miniature-musician-31262 · Answer

That s interesting I would ve found this surprising too Glad you found a way through it I wonder if there s something about `webhookCallback` specifically that got in the way somehow because this at least for me seems to work

miniature-musician-31262 · Answer

and with a `lambda CallbackFunction` I also see `someFunc` serialized into the Lambda

miniature-musician-31262 · Answer

so I wonder what happened there thinking face

mammoth-art-6111 · Answer

yeah also curious it was using `this someFunc` it was another member function of the instance

miniature-musician-31262 · Answer

aha so you saw something like this

mammoth-art-6111 · Answer

yes exactly

miniature-musician-31262 · Answer

nice ok seems like this is either a bug or something that needs to be documented will report back

mammoth-art-6111 · Answer

lmk

miniature-musician-31262 · Answer

Ended up filing this as I think it may be a bug or at least need better documentation <https github com pulumi pulumi issues 9168>

mammoth-art-6111 · Answer

yeah i wonder if it s possible to serialize in that situation at all i believe the instance or object created from the object prototype exists at the time that the function assignment occurs but i m not sure it s simply a matter of capturing everything in the closure and i m not sure how you would make the serializer aware a particular closure was a constructor since it s syntax sugar it s really just another function