Using TwitchLib with Unity (short version)

Prerequisites:

• Unity 2017.1+

Setup

• Clone or download repository from https://github.com/swiftyspiffy/TwitchLib
• (Download all dependencies of TwitchLib)
• In Unity: Edit > Project Settings > Player
• Scroll down to Api Compatibility Level and select “.NET 4.6” or higher

See extensive guide to see how to compile DLL and avoid TLS problems.

Using TwitchLib with Unity (extensive version)

Prerequisites:

• Unity 2017.1+
• SourceTree
• Visual Studio

Step 1 - Clone TwitchLib repository

Example with SourceTree

• Get Repository URL by clicking the Clone or Download button. See GIF
• Clone in SourceTree See GIF

Step 2 - Open and build project into DLLs

Example using Visual Studio

• Open TwitchLib solution in Visual Studio See GIF
• Set to Release mode See GIF
• Build TwitchLib solution See GIF
• Confirm that you now have these DLL files: See GIF
  • Newtonsoft.Json.dll
  • TwitchLib.dll
  • websocket-sharp.dll

Step 3 - Create Unity Project

• Create new Unity project See GIF
• In Unity select: Edit > Project Settings > Player
• Scroll down to Api Compatibility Level and select “.NET 4.6” or higher See GIF
• Import TwitchLib DLLs See GIF

Step 4 - Setup Twitch App

Create a twitch account for your bot

• Navigate to Connections and register your new app See GIF
• Create a new Client Secret and copy to notepad for later See GIF
• Create new OAuth token with https://twitchtokengenerator.com and copy to notepad for later See GIF

Step 5 - Setup Unity integration

• Create new script See GIF
• Gather relevant data See GIF (part 1), See GIF (part 2)
• Try to make connection See GIF
• Attempt to run code See GIF
• Fix Mono TLS Exception See GIF

TLS Fix:

public bool CertificateValidationMonoFix(System.Object sender, X509Certificate certificate, X509Chain chain, SslPolicyErrors sslPolicyErrors)
{
    bool isOk = true;
 
    if (sslPolicyErrors == SslPolicyErrors.None)
    {
        return true;
    }
 
    foreach (X509ChainStatus status in chain.ChainStatus)
    {
        if (status.Status == X509ChainStatusFlags.RevocationStatusUnknown)
        {
            continue;
        }
 
        chain.ChainPolicy.RevocationFlag = X509RevocationFlag.EntireChain;
        chain.ChainPolicy.RevocationMode = X509RevocationMode.Online;
        chain.ChainPolicy.UrlRetrievalTimeout = new TimeSpan(0, 1, 0);
        chain.ChainPolicy.VerificationFlags = X509VerificationFlags.AllFlags;
 
        bool chainIsValid = chain.Build((X509Certificate2)certificate);
 
        if (!chainIsValid)
        {
            isOk = false;
        }
    }
 
    return isOk;
}

Step 6 - Making your first call

• Add first Twitch Hook See GIF
• Test See GIF

Now it's just a matter of exploring the API's provided by TwitchLib and hooking into the events you need :)