This guide is going to walk you through setting up a new application on dev.twitch.tv. This is necessary for use with our new Twitch Sub Private Pages plugin.
Login to Twitch and click authorize.
Click Your Dashboard.
Click Register Your Application.
Set Name to something related to your Twitch name.
Set OAuth Redirect URLs to the URL of your private page. If you want your private page to live at /private-page/ then enter your full URL like this: https://www.chess-coach.net/private-page/
Set Category to Website Integration.
Now click Manage.
From this page you want to copy the Client ID and save it for later.
Now you want to click New Secret.
Copy the Client Secret which has been generated and save it for later.
Now navigate to your own website and go to the WordPress admin pages.
Click Settings -> Twitch Sub Private Pages.
Now paste your Client ID and your Client Secret into the settings on this page.