'NoneType' 对象在 django rest 框架中不可订阅

Question

我试图在 django restframework 中接收 json 格式的数据并立即使用数据，但我意识到我收到错误消息 'NoneType' 对象不可订阅'，我觉得我需要使用cleaned_data 但我不知道如何在 rest 框架中使用 cleaned_data...这是我的代码：

@api_view(['GET', "POST"])
def home(request):
    if request.method == 'POST':     
        name = request.data.get('name')
        email = request.data.get("email")
        amount = request.data.get("amount")
        phone = request.data.get("phone")

        return redirect(str(process_payment(name, email, amount, phone)))
    else:    
        responseData = {  
            "Homepage": "Payment"
        }
        return Response(responseData)

这是我的回溯错误：

Traceback (most recent call last):
  File "/Library/Frameworks/Python.framework/Versions/3.10/lib/python3.10/site-packages/django/core/handlers/exception.py", line 47, in inner
    response = get_response(request)
  File "/Library/Frameworks/Python.framework/Versions/3.10/lib/python3.10/site-packages/django/core/handlers/base.py", line 181, in _get_response
    response = wrapped_callback(request, *callback_args, **callback_kwargs)
  File "/Library/Frameworks/Python.framework/Versions/3.10/lib/python3.10/site-packages/django/views/decorators/csrf.py", line 54, in wrapped_view
    return view_func(*args, **kwargs)
  File "/Library/Frameworks/Python.framework/Versions/3.10/lib/python3.10/site-packages/django/views/generic/base.py", line 70, in view
    return self.dispatch(request, *args, **kwargs)
  File "/Library/Frameworks/Python.framework/Versions/3.10/lib/python3.10/site-packages/rest_framework/views.py", line 509, in dispatch
    response = self.handle_exception(exc)
  File "/Library/Frameworks/Python.framework/Versions/3.10/lib/python3.10/site-packages/rest_framework/views.py", line 469, in handle_exception
    self.raise_uncaught_exception(exc)
  File "/Library/Frameworks/Python.framework/Versions/3.10/lib/python3.10/site-packages/rest_framework/views.py", line 480, in raise_uncaught_exception
    raise exc
  File "/Library/Frameworks/Python.framework/Versions/3.10/lib/python3.10/site-packages/rest_framework/views.py", line 506, in dispatch
    response = handler(request, *args, **kwargs)
  File "/Library/Frameworks/Python.framework/Versions/3.10/lib/python3.10/site-packages/rest_framework/decorators.py", line 50, in handler
    return func(*args, **kwargs)
  File "/Users/williamdapper/Desktop/payment/electronics/views.py", line 21, in home
    return redirect(process_payment(name, email, amount, phone))
  File "/Users/williamdapper/Desktop/payment/electronics/views.py", line 55, in process_payment
    link=response['data']['link']
TypeError: 'NoneType' object is not subscriptable
[11/Oct/2021 15:19:25] "POST / HTTP/1.1" 500 95799

[这是我得到的错误图片][1] [1]: https://i.stack.imgur.com/wkOwa.png

Answer 1

错误答案：只需将 request.data 替换为 request.POST

已编辑

我看到你的追溯，发现问题出在你的 views.py 的第 55 行你使用 response['data'] 的地方。是None!

Answer 2

我已经修好了。我在process payment打印response看到报错信息，所以得到：

{'status': 'error', 'message': 'Invalid authorization key', 'data': None}

我现在记得我在早上更改了我的密钥，所以我从我的仪表板获取它并进行了必要的更正，然后一切都开始工作了。

'NoneType' 对象在 django rest 框架中不可订阅

'NoneType' object is not subscriptable in django rest framework

python

django

cleaned-data

django-rest-framework

已编辑