[Tutorial] - Connecting to a Third Party Socket Server

HailstoneRyan · May 24, 2014, 5:51pm

Finally got around to writing down how I was able to accomplish this. Hopefully it helps someone else and I hope people don’t mind a link to the wiki.

Wasn’t sure how to get it added to the list of tutorials on the wiki unfortunately.

Dakkafex · May 25, 2014, 1:42am

Maybe elaborate a little on what exactly this means and why should i use it.

Drexciya · May 25, 2014, 11:28am

Use it to access external databases for persistent game worlds?

Dakkafex · May 25, 2014, 1:59pm

yea but think of a new person, if you put things in context a little its always easier to understand.

HailstoneRyan · May 26, 2014, 1:55pm

Thanks for the feedback guys. I’ve added our specific use case to the page. We’re building a lobby/chat system that we felt using the built in dedicated server would have been overkill for.

anonymous_user_0074ae5e1 · May 28, 2014, 2:42pm

Great tutorial. I’d move the dependency thing to the beginning though, since you should really do that first, right?

Rama · May 28, 2014, 5:07pm

Thanks for your awesome tutorial overlawled!

I’ve been wondering how this gets done, you did all the research for me!

I made your wiki tutorial publicly visible in both Tutorials and the Code section

Now people can easily find it when just browsing the Wiki!

Thanks for sharing!

Rama

Moynzy · November 5, 2015, 10:03am

Hi, I’ve been following this code, and I have found that when my c# server reads information from the client, it crashes.

When the server sends information to the client;

The message is -1.#

Any ideas why :d/

Moynzy · March 22, 2016, 1:53pm

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&lt;uint8&gt; ReceivedData;

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

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

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

	if (ReceivedData.Num() &lt;= 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.

Natsuki_Chan · November 9, 2019, 4:16pm

Well I plan to upgrade my game but i want to connect the ue4 to my extrenal server that work on Microsoft Sql Server that why the way you say on page 1 can help with that?