Variable in API Post request doesn't work

Database & APIs

I use flutterflow with flowise (chatbot ai nocode app). I create a text field input in flutterflow

and sent the value in a variable call "question" to run the request.

When I test the api in response and test with a static value, it works.

but when I run the app in test mode and use the text field value, question variable is empty.

What have you tried so far?

I've tried to erase and create another variable. Send text field input value in a appstate variable.

Did you check FlutterFlow's Documentation for this topic?

Yes