How do I transfer player id to the server?

[catsarisky]

Yes - take a look at the post/receive functionality. See this thread for details, including a link to the javascript you’ll need on the server side:

[Solved] Question about web viewer receives message

You webpage needs include: <script src="https://thunkable.github.io/webviewer-extension/thunkableWebviewerExtension.js" type="text/javascript"></script> ThunkableWebviewerExtension.postMessage('hello world'); You can find instructions and details here: