JSON to UStruct: Array of float-Arrays

Development Pipeline & Plugins Editor Scripting
, , , , ,
1

I’m receiving json data such as:

{
    "key1" : "value1",
    "key2" : [
        [1.5, 2.0, 4.15],
        [3.4, 1.2, 5.18],
    ]
}

I’m trying to parse this to UStruct like:

USTRUCT()
struct FJsonData{
	GENERATED_BODY()

	UPROPERTY()
	FString key1;

	UPROPERTY()
	TArray<double> key2;
};
/* ... */
FJsonObjectConverter::JsonObjectStringToUStruct(...)

I also tried

TArray<TArray<double>> key2,

which is not allowed (no nested containers), also

TArray<FVector> key2

, which did not work as well.

Are anonymous arrays per se not supported?

I could parse by hand, but the serialization/deserialization via UStruct seems cleaner to me.

2

I guess anonymous arrays (and any anonymous object in general) are not allowed in FJsonObjectConverter. I fixed my JSON Format instead by providing any array with a key.