Query to only return specific fields set

[matdrapeau]

In order to reduce the amount of data being transferred from a resource, is it possible to provide a query args to return a set of fields?
Sometimes, we don't need all attributes of an object but a couple of them.
It would require too many custom routes to expose the different set of attributes we would need.
Here a few examples to describe it:

/users?include_fields=['first_name', 'last_name']
/users?include_fields=['email']
/users?include_fields=['city', 'country']

[kvalv]

For a single instance, maybe this would do:

from flask_potion import routes, fields
@routes.ItemRoute.GET
def filtered(self, item, fields: fields.Array(fields.String)):
    return {f: getattr(item, f) for f in fields}

And pass the attributes you want to include in the body of the GET request. Not sure if it's the best practice (and probably way too late response anyway), but I guess it's an option 🤷