Flutterflow no JSON Paths

Hey guys, I just started creating a Flutterflow app which enables users to upload a picture and to get the text in their image categorized and returned. I was able to setup a working process in BuildShip and connect it to Flutterflow. When I click on test API it says "success" and I receive the Information I wanted in the "Raw Body" but it doesn't list any Information in "Body JSON".

Someone got an idea what could be my mistake?

Thanks!