Serializing a list of objects with django-rest-framework

Question

In DRF, I can serialize a native Python object like this:

class Comment(object):
    def __init__(self, email, content, created=None):
        self.email = email
        self.content = content
        self.created = created or datetime.now()

class CommentSerializer(serializers.Serializer):
    email = serializers.EmailField()
    content = serializers.CharField(max_length=200)
    created = serializers.DateTimeField()

comment = Comment(email='[email protected]', content='foo bar')
serializer = CommentSerializer(comment)
serializer.data

# --> {'email': '[email protected]', 'content': 'foo bar', 'created': '2016-01-27T15:17:10.375877'}

Is it possible to do the same for a list of objects using ListSerializer?

Olivier Pons · Accepted Answer · 2019-08-05 12:30:04Z

127

You can simply add many=True for serialising list.

comments = [Comment(email='[email protected]', content='foo bar'),
            Comment(email='[email protected]', content='foo bar 1'),
            Comment(email='[email protected]', content='foo bar 2')]
serializer = CommentSerializer(comments, many=True)
serializer.data

edited Aug 5, 2019 at 12:30

Olivier Pons

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answered Feb 22, 2017 at 17:45

Bipul Jain

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4 Comments

Olivier Pons Over a year ago

And how to un-serialize a list?

cwhisperer Over a year ago

many=True is what I was looking for over an hour

Sameel Over a year ago

List serializer not validating the object, if I remove many=True and run an empty single object it gets validated for required fields. for the list, it is always 200 for an empty list.

kta Over a year ago

I was missing many=True again

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