HandleRequestCollectionHelper for Quarkus Amazon Lambda about quarkus

[quarkus-bot]

/cc @matejvasek (amazon-lambda), @patriot1burke (amazon-lambda)

[hamburml]

@scrocquesel maybe this is also interesting for you

[patriot1burke]

It would be better to change the reader created by the object mapper here:

https://github.com/quarkusio/quarkus/blob/main/extensions/amazon-lambda/runtime/src/main/java/io/quarkus/amazon/lambda/runtime/AmazonLambdaRecorder.java#L59

To use ObjectMapper.readerFor(TypeReference)

[hamburml]

@patriot1burke Do you have an idea how this can be done in the linked class?

[patriot1burke]

Yeah,

quarkus/extensions/amazon-lambda/runtime/src/main/java/io/quarkus/amazon/lambda/runtime/AmazonLambdaRecorder.java

Line 55 in 1323185

Class<?> parameterType = handlerMethod.getParameterTypes()[0];

Type genericType = handlerMethod.getGenericParameterTypes[0];
JavaType javaType = objectMapper.getTypeFactory().constructType(parameterType);
objectReader = new JacksonInputReader(objectMapper.reader(javaType));

I think that will work. Should do the same for the writer too. Also, probably need to handle the case where the handler class is parameterized.