Django rest framework serializing many to many field

Question

How do I serialize a many-to-many field into list of something, and return them through rest framework? In my example below, I try to return the post together with a list of

Answer 1

The default ModelSerializer uses primary keys for relationships. However, you can easily generate nested representations using the Meta depth attribute:

class PostSerializer(serializers.ModelSerializer):
    class Meta:
        model = Post
        fields = ("text", "tag")
        depth = 1 

As mentioned in the documentation :

The depth option should be set to an integer value that indicates the depth of relationships that should be traversed before reverting to a flat representation.