To override the returned representation, you can override the
`to_representation` method of a serializer:
def to_representation(self, instance):
data = super().to_representation(instance)
data.pop('secret_field')
data['some_new_field'] = 'Cow infiltrator!'
data['nested_data'] = {'fav_toys': ['pogo_stick', 'cannon balls']}
return data
Nested serializers are handled as per the
docs:
https://www.django-rest-framework.org/api-guide/serializers/#specifying-nested-serialization
You can specify arbitary fields in your serializer with
https://www.django-rest-framework.org/api-guide/serializers/#specifying-fields-explicitly
Or use a callable via a method
field:
https://www.django-rest-framework.org/api-guide/fields/#serializermethodfield
You don't live in South Africa by any chance?
Cheers!
On Thursday, 29 December 2022 at 23:55:04 UTC+2 Travis Miller wrote:
> I'm new to DRF (and pretty new to Django and Python in general). I'm
> trying to build a simple API endpoint. But I'm having trouble figuring out
> the best approach.
>
> 1. The endpoint accepts a request payload similar to the following (this
> is contrived):
>
> {
> "employee_id": 123,
> "favorite_flavor": "chocolate",
> "subscribe_to_updates": true,
> "cats_or_dogs": "cats"
> }
>
> Obviously, I would like to validate this payload before doing anything
> further with it.
>
> 2. The endpoint then creates several related records in the database. Note
> that the request payload is *not* a direct 1-to-1 representation of a
> Django ORM model. Instead, employee_id gets saved to one table, and
> favorite_flavor and subscribe_to_updates get saved to a second table.
> Perhaps cats_or_dogs doesn't get saved to the database at all – maybe it
> just triggers an email send, or writes a file to disk, or something like
> that.
>
> 3. Finally, I would like the endpoint to return an arbitrary JSON payload,
> which differs from both the request payload *and* the model structure:
>
> {
> "recommended_dessert": "Black Forest Cake",
> "subscription_id": 5827,
> "cat_name": "Fluffy",
> "some_nested_object": {
> "foo": "bar"
> }
> }
>
> How can I do this? DRF provides a dizzying array of ways to do things, and
> I can't quite figure out which combination is best for my case.
>
> Thanks!
>
>
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