Good news – we do have the Web component which you can also used with Object blocks to make the data parsing much easier:
https://docs.thunkable.com/ios/components/data-storage/web-api.html
http://community.thunkable.com/t/how-to-use-objects-wisely/18406
In terms of NFC, we’ll look into that although I’ve never seen the user interaction where user’s add friends by NFC – I’ve only seen that using the barcode scanner in WeChat.
Thanks for reporting the bug from the “function” block – if you can share you’re project file, we can take a look at it in more detail.
https://docs.thunkable.com/ios/6-share.html
Albert