also when using ImageHandler to handle single image input, there’re two ways you can send request with

curl

:

curl -X POST "<http://127.0.0.1:5000/predict>" -F image=@sample_image.png

# and
curl -X POST "<http://127.0.0.1:5000/predict>" -H "Content-Type: image/png" --data-binary @sample_image.png

hope that helps