如何在Django rest框架中添加foriegnkey对象并通过单个端点将其连接为post对象

from django.db import models

class Category(models.Model):
    name = models.CharField(max_length=100)

class Post(models.Model):
    title = models.CharField(max_length=100)
    content = models.TextField()
    category = models.ForeignKey(Category, on_delete=models.CASCADE)

from rest_framework import serializers
from .models import Post, Category

class CategorySerializer(serializers.ModelSerializer):
    class Meta:
        model = Category
        fields = '__all__'

class PostSerializer(serializers.ModelSerializer):
    category = CategorySerializer()

    class Meta:
        model = Post
        fields = '__all__'

from rest_framework.decorators import api_view
from rest_framework.response import Response
from .serializers import PostSerializer

@api_view(['POST'])
def create_post(request):
    serializer = PostSerializer(data=request.data)
    if serializer.is_valid():
        serializer.save()
        return Response(serializer.data, status=201)
    return Response(serializer.errors, status=400)

from django.urls import path
from .views import create_post

urlpatterns = [
    path('posts/', create_post),
]