[Tutorial] - Connecting to a Third Party Socket Server

[Moynzy]

Hi,

I can sent a message to my C# server.

After using the send() method, I sit there and wait for a reply back.

When the C# server gets a message, it will then send one back. My client misses the first packet received.

	TArray<uint8> ReceivedData;

	uint32 Size;
	while (mySocket->HasPendingData(Size))
	{
		ReceivedData.SetNumUninitialized(FMath::Min(Size, 65507u));

		int32 Read = 0;
		mySocket->Recv(ReceivedData.GetData(), ReceivedData.Num(), Read);

		//GEngine->AddOnScreenDebugMessage(-1, 5.f, FColor::Red, FString::Printf(TEXT("Data Read! %d"), ReceivedData.Num()));
	}
	//~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

	if (ReceivedData.Num() <= 0)
	{
		FString temp = TEXT("Error|Could not recieve from server.");
		

	}

Do you know I get a -1 the first time?

For e.g. I send the correct user credentials to my server, the server checks DB and sends true to UE4 client, UE4 client receives -1, despite the server saying “You can log in”?

Any clues,

Thank you.