Hello there!

This is really good stuff!

I have an issue while trying it - apparently missing some setup... I have just tried it and getting {"message": "Internal server error"} as an outcome from executing ./provision-infrastructure.sh with detailed CloudWatch error as below:
/var/task/bootstrap: line 4: /var/task/jre18-slim/bin/java: cannot execute binary file

Running ./provision-infrastructure.sh on macOS, if that matters.

Can you please advice what do I miss here?

Hello @maschnetwork

I'm still trying your setup to get some comparisons. I was trying to apply this to one of my apps. Unfortunately I got NoClassDefFoundError: com/amazonaws/services/lambda/runtime/LambdaLogger - apparently it doesn't like my logger setup. It was working properly without the instrumentation, though.
Anyway, I stepped back to the documentation and according to https://docs.aws.amazon.com/lambda/latest/dg/java-logging.html, this is the basic needed setup: https://github.com/awsdocs/aws-lambda-developer-guide/blob/main/sample-apps/java-basic/pom.xml (or here: https://github.com/awsdocs/aws-lambda-developer-guide/blob/main/sample-apps/blank-java/pom.xml) - does it still apply to custom runtimes?

Unfortunately it looks like I still miss some additional setup because with the instrumentation applied and the above setup I get: WARNING: sun.reflect.Reflection.getCallerClass is not supported. This will impact performance.

The app works fine but from the logs I can see it may impact the performance:

2022-05-09T11:29:15.751+02:00 START RequestId: 
2022-05-09T11:29:16.284+02:00 WARNING: sun.reflect.Reflection.getCallerClass is not supported. This will impact performance. | WARNING: sun.reflect.Reflection.getCallerClass is not supported. This will impact performance.
2022-05-09T11:29:19.403+02:00 END RequestId: 
2022-05-09T11:29:19.403+02:00 REPORT RequestId: Duration: 3650.94 ms	Billed Duration: 4473 ms Memory Size: 512 MB	Max Memory Used: 141 MB	Init Duration: 821.08 ms	XRAY TraceId: XXX Duration: 3650.94 ms Billed Duration: 4473 ms Memory Size: 512 MB Max Memory Used: 141 MB

Have you encountered this error/warning?

Regards
M

I was trying to get this working using Kotlin but I keep getting this: Error: Runtime exited without providing a reason Runtime.ExitError.

My handler is setup like this

class SimpleHandler: RequestHandler<APIGatewayProxyRequestEvent, APIGatewayProxyResponseEvent> {
val logger = LoggerFactory.getLogger(SimpleHandler::class.java)
val jsonMapper = jacksonObjectMapper()
var responseFromClient: String = ""

override fun handleRequest(input: APIGatewayProxyRequestEvent?, context: Context?): APIGatewayProxyResponseEvent {
    logger.info("APIGatewayProxyRequestEvent received: \n ${jsonMapper.writeValueAsString(input)}")

}

}

I don't have a main class as the java example. I noticed that when I added a main class I get a different error: Request Timeout but maybe is because is trying to wait for and answer from main execution. Please advice.