UE4 JWT Parser usage

JwtUsageExample.cpp

#include "Kismet/GameplayStatics.h"

// ...

// Obtain reference to UXsollaLoginSubsystem object. It is assumed that login subsystem has been already initialized.
UGameInstance* GameInstance = UGameplayStatics::GetGameInstance(this);
UXsollaLoginSubsystem* XsollaLoginSubsystem = GameInstance->GetSubsystem<UXsollaLoginSubsystem>();

// Get "email" value from token youi've received previously from launcher

FString email = XsollaLoginSubsystem->GetTokenParameter(token, TEXT("email"));

// use email value in suitable manner

// ...