Django REST招摇如何处理响应POST api(基于函数)

我正在尝试接受使用基于Django REST函数的post API发布的图像文件。这是基于 https://github.com/m-haziq/django-rest-swagger-docs

我得到了这个错误截图( https://imgur.com/a/ECq5y )

Object of type 'TypeError' is not JSON serializable

感谢你这么做

face_image = request.data.get('face_image')

那么,将其保存到模型中的正确步骤是什么呢

employee.face_image = face_image

下面是我如何定义API的

@api_view(['POST'])
def update_employee_image(request):
    # ----- YAML below for Swagger -----
    """
    description: This API deletes/uninstalls a device.
    parameters:
      - name: employee_id
        type: integer
        required: true
        location: form
      - name: face_image
        type: file
        required: true
        location: form
    """
    employee_id = request.POST.get('employee_id')
    face_image = request.data.get('face_image') <--- this causes the error

这是带有imagefield的模型

class Employee(models.Model):
    ....
    face_image = models.ImageField(upload_to='face_image/', blank=True)