{ "md5": "8f10a58845f83846ca5aa422edc0087d", "name": "", "ext": ".jpg" }
curl --location --request POST 'http://127.0.0.1:8888/file/upload/prepare' \ --header 'Content-Type: application/json' \ --data-raw '{ "md5": "8f10a58845f83846ca5aa422edc0087d", "name": "", "ext": ".jpg" }'
{}