I've tried building an intent that targets :thumbsup: and also the unicode representation U+1F44D
how can I build an intent around emojis ?
Unfortunately :thumbsup: and U+1F44D will be invalid.
An utterance can consist only of Unicode characters, spaces, and valid punctuation marks. Valid punctuation marks are: periods for abbreviations, underscores, apostrophes, and hyphens.
You have to handle emoji before sending it to Lex. Like if you get :thumbsup: value then send thumbsup to Lex and it will handle that intent.