More info about app.py

[louisdorard]

There are no specs on what app.py should be in order to serve an API.

There is 1 example which is quite specific (taking file in, returning file), more would be welcome (e.g. getting numerical feature values in, returning prediction).

[whatrocks]

Great point! Here's a new guide in our docs with more details: https://docs.floydhub.com/guides/serving/