Use of default values for case class fields if dynamodb field is missing

Hi,

First of all many thanks for building and maintaining a library that makes my life easier 😃

I was wondering how you tackle the challenge where you need to add a new (optional) field with a default value to your case class/dynamodb table.

if I add it as an Option to my case class:

case class Farmer(name: String, age: Long, isFriendly: Boolean = true) // added isFriendly

it’s complaining about a missing when I get an already existing record from the database.

I could add the field as an explicit Option[Boolean] but that means that I have to write more ceremony in my code base to get at my field.

Should I create my own custom DynamoFormat and explicitly set the default value for the missing field?

[tolomaus]

Ah nice, thanks for the example code, really appreciated!

Probably a bit calmer here - politically speaking - than at your side right night, although I don’t think we’re that far off 😉

[regiskuckaertz]

Closing as M10 provides DynamoValue which allows easier manual derivation.