how to display a manytomany field in django rest framework

To display a ManyToMany field in Django Rest Framework, you can follow these steps:

Step 1: Define your models - Create the models that will have the ManyToMany relationship. For example, let's say we have a "Book" model and an "Author" model.

Step 2: Add the ManyToMany field - In the model that represents the "Book", add a ManyToMany field to represent the relationship with the "Author" model. For example:

class Book(models.Model):
    title = models.CharField(max_length=100)
    authors = models.ManyToManyField(Author)

Step 3: Create serializers - Create serializers for both the "Book" and "Author" models. For example:

class AuthorSerializer(serializers.ModelSerializer):
    class Meta:
        model = Author
        fields = '__all__'

class BookSerializer(serializers.ModelSerializer):
    authors = AuthorSerializer(many=True)

    class Meta:
        model = Book
        fields = '__all__'

Step 4: Define the view - Define a view that will handle the request for retrieving the books and their authors. For example:

class BookViewSet(viewsets.ModelViewSet):
    queryset = Book.objects.all()
    serializer_class = BookSerializer

Step 5: Register the view - Register the view in your file. For example:

router = DefaultRouter()
router.register(r'books', BookViewSet)

urlpatterns = [
    # other urls
    path('api/', include(router.urls)),

That's it! Now you should be able to access the ManyToMany field in your Django Rest Framework API.