Make sure you review the Fishial API Recognition tutorial file named: tutor.adoc

https://github.com/fishial/devapi/blob/main/tutor.adoc

Also there is two sample scripts that you can review on how the API is used written in BASH and Python

https://github.com/fishial/devapi/blob/main/recognize_fish.bash

AND

https://github.com/fishial/devapi/blob/main/recognize_fish.py