No replacement for the @LambdaFunction and LambdaInvokerFactory?

[adworacz]

Expected Behavior

One of the great API improvements provided by the v1 SDK was the LambdaInvokerFactory, which handled so much of the marshalling when directly invoking a Lambda.

There seems to be no v2 replacement that I can find, and nothing is mentioned in the 1.11 to 2.0 changelog which is surprising for something that completely disappeared.

Current Behavior

There is no corollary to the @LambdaFunction and LambdaInvokerFactory set of API utilities.

Possible Solution

Re-implement those utilities.

Context

The amount of boilerplate significantly increases when attempting to call Lambda. This is especially apparent when writing functional tests, where the actual details of invoking a Lambda are not relevant to actually testing that Lambda.

Your Environment

• AWS Java SDK version used: v2
• JDK version used: Corretto - 11.0.8
• Operating System and version: Ubuntu 20.04

[debora-ito]

Hi @adworacz thank you for reaching out.

We don't have a functionality equivalent to the LambdaInvokerFactory in v2 yet. Let's use this issue to track it.

For anyone who's also interested in seeing this in v2, please add your thumbs up in the original description, it helps us prioritize the requests.

[j-bluemke]

Hey, I'm working for @simpleshow and we'd like to contribute this feature in case nobody else is working on it. We are currently in the process of switching to v2 and would have to do a whole lot of refactoring without this functionality.

[ionutab]

@j-bluemke hmmm, I've just come across this. let me know if there's any chance I could help with this. Thanks!

[aimethed]

Hello. I know that a large focus of the v2 migration is using the respective client for sending the appropriate requests and this feature does not necessarily align with that. Is this still a feature that is in consideration? Is migrating this feature just a matter of taking the previous LambdaInvokerFactory and updating the references to their v2 equivalents or is there more complicated work to be done?