JSON

This module contains helper functionality for serializing and deserializing JSON data to and from USTRUCTs using UPROPERTYs. More...

Namespaces
namespace	JsonObjectDeserialization
	Handles converting Json objects to UStructs.
namespace	JsonObjectSerialization
	Handles converting UStructs to Json objects.
namespace	JsonObject
	Conversion to and from dynamic JSON objects.
namespace	JsonField
	Custom serialization and deserialization for types which aren't supported by UPROPERTY (e.g. TOptional)

Typedefs
using	FJsonAttributeKey = FJsonObject::FStringType
	The key type used by FJsonObject for its attributes.
using	FJsonAttributeMap = TMap<FJsonAttributeKey, TSharedPtr<FJsonValue>>
	The attributes of a json object, as stored in FJsonObject::Values.

Detailed Description

This module contains helper functionality for serializing and deserializing JSON data to and from USTRUCTs using UPROPERTYs.

Note

You should use the "Transient" UPROPERTY-specifier to skip Serialization while still performing Deserialization.

Typedef Documentation

FJsonAttributeKey

using FJsonAttributeKey = FJsonObject::FStringType

The key type used by FJsonObject for its attributes.

UE 5.8 changed these keys from FString to UE::FSharedString, so that keys recurring throughout a json structure can share a single allocation. Aliasing the type here keeps the rest of the module free of engine version checks.

Note that a key is not an FString on every engine, so it has no FString member functions. Wrap it in MakeStringView() to compare or search it, which works for both underlying types.