Add support for return files like csv, xlsx and parquet.

[MarcSkovMadsen]

My Pain

I'm using Panel to create awesome analytics apps. On the side of that I would like to serve some of that awesome data to my users so that the app or dashboard I'm creating is not a dead end. This includes serving json, csv, xlsx, parquet etc.

I can see that Panel is adding support for rest api endpoints using tranquilizer. Thats great. See holoviz/panel#1164

But as far as I can see from the documentation tranquilizer does not support serving files like json, csv or parquet. So Panel will not be able to that (I guess).

Solution

Please add support for serving files like csv, xlsx and parquet.

[MarcSkovMadsen]

See also my requirements/ hopes for Panel tranquilizer here holoviz/panel#1164 (comment).

[AlbertDeFusco]

Right now Tranquilizer can return any JSON serializable object. I think we might use Pandas to convert the data type and set the appropriate mime type. This would be a good use for the function return hinting.

Something you might look at is the Intake server capabilities. I think there are some great opportunities to integrate with tranquilizer.

https://intake.readthedocs.io/en/latest/server.html