AWS Lambda Powertools for Java: Idempotency - allow customised/improved object mapper

[AlanStill]

Is your feature request related to a problem? Please describe.
The payload that I wish to use as my IdempotentKey contains an OffsetDateTime object. This generates the following exception.

"Java 8 date/time type java.time.OffsetDateTime not supported by default: add Module "com.fasterxml.jackson.datatype:jackson-datatype-jsr310" to enable handling"

Ordinarily this would be a simple matter of registering the JavaTimeModule with the ObjectMapper. However, as Idempotency usingthe JsonConfig.get().getObjectMapper() )I don't think this is currently possible.

Describe the solution you'd like

Is it possible to enhance the ObjectMapper that is used via the Idempotency Configuration setup instead of directly using 'JsonConfig.get().getObjectMapper()

[msailes]

Hi @AlanStill,

Yes I think this makes sense, would you be interested in submitting a PR for this?

Thanks,

[jeromevdl]

Using JsonConfig.get().getObjectMapper(), you can actually customize the Mapper, add a module, change the config, anything that you can do with an ObjectMapper. You need to do this in th constructor of the function before configuring Idempotency.

[ChilukuriHR]

I am facing the below issue with powertools Idempotency. can you assist in resolving this.?

Joda date/time type org.joda.time.DateTime not supported by default: add Module "com.fasterxml.jackson.datatype:jackson-datatype-joda" to enable handling (through reference chain: com.amazonaws.services.lambda.runtime.events.S3Event["records"]->java.util.ArrayList[0]->com.amazonaws.services.lambda.runtime.events.models.s3.S3EventNotification$S3EventNotificationRecord["eventTime"])

Thanks in advance.!

[oscarkof]

Using JsonConfig.get().getObjectMapper(), you can actually customize the Mapper, add a module, change the config, anything that you can do with an ObjectMapper. You need to do this in th constructor of the function before configuring Idempotency.

Hey @jeromevdl thanks for you comment, I think you can improve the official documentation in faq section to avoid this issue, I used for lambda powertools idempotency and this save my day:

// Register Joda Module to serialize
        JsonConfig.get().getObjectMapper().registerModule(new JodaModule());