Incorrect deserialization of numerical value

[spartanhooah]

We're calling an API that returns JSON and has a numeric value of e.g. 10.00. This gets deserialized into a Double of 10.0. IMO this should be deserialized into a BigDecimal instead to maintain the proper precision.

[artamonovkirill]

Hi, @spartanhooah 👋
Thanks for raising that.
Can you share some examples of how you deserialize the values in your tests?
I've added a few tests for a generic Map and a dedicated Info classes: #203.
Jackson-databind might default to Double when deserializing generic objects (like Map).
I'll dig deeper to verify that and check if that can be configured in the object mapper.

[artamonovkirill]

Indeed, USE_BIG_DECIMAL_FOR_FLOATS is one of the Jackson-databind features: https://github.com/FasterXML/jackson-databind/wiki/Deserialization-Features#type-conversions

You can do something like this for your setup:

        def mapper = new ObjectMapper().enable(USE_BIG_DECIMAL_FOR_FLOATS)
        def http = new HttpClient(mapper: mapper)

Please let me know whether you need some extra information or it's OK to close this ticket.

[spartanhooah]

Ah, I didn't know we could pass an ObjectMapper to the HttpClient. That sounds like it'll work perfectly. Let me test it out.

[spartanhooah]

That does the trick. Thank you.