Python中的字节输入不正确（无法转换为JSON）

Question

基本上，我有一个API端点，如果您向它发出POST请求，它将被调用。问题是出于某种原因，我无法将字节转换为JSON以便访问数据。你知道吗

我的代码：

@api_view(['POST'])
def create_user(request):
    """ POST = Create user. """
    # Check that a username with this email doesn't already exist
    try:
        data = {}
        print("IS IT WORKING...?")
        print(type(request.body))
        print(request.body)
        # Use double quotes to make it valid JSON
        my_json = request.body.decode('utf8').replace("'", '"')
        print("MY_JSON:")
        print(my_json)
        data = json.loads(my_json)
        print("DATA:")
        print(data)
        s = json.dumps(data, indent=4, sort_keys=True)
        print("s:")
        print(s)
    except User.DoesNotExist:
        print("PLS WORK ON CONSOLE")
    return Response(status=status.HTTP_409_CONFLICT)

我试图使用Postman向路径users/create/发出POST请求，但是当我打印request.body以查看POST请求的内容时，它的格式不正确，有许多随机数和破折号。这使我无法将其转换为JSON。这是一个带有email和password字段的简单POST请求。你知道吗

这就是奇怪的格式：https://gyazo.com/fa1cc2f04637c02f79fe59790153ae40

这就是“json”在我解码并用双引号转换后的样子（注意奇怪的破折号和数字）：https://gyazo.com/3ca41106117a4e9acdd96929469313a1

在那之后，它会因为data = json.loads(my_json)而出错，因为输入的格式不正确。你知道吗

错误消息：

Internal Server Error: /users/create/
Traceback (most recent call last):
  File "/Users/mightu/Desktop/jason_app/env/lib/python3.7/site-packages/django/core/handlers/exception.py", line 34, in inner
    response = get_response(request)
  File "/Users/mightu/Desktop/jason_app/env/lib/python3.7/site-packages/django/core/handlers/base.py", line 115, in _get_response
    response = self.process_exception_by_middleware(e, request)
  File "/Users/mightu/Desktop/jason_app/env/lib/python3.7/site-packages/django/core/handlers/base.py", line 113, in _get_response
    response = wrapped_callback(request, *callback_args, **callback_kwargs)
  File "/Users/mightu/Desktop/jason_app/env/lib/python3.7/site-packages/django/views/decorators/csrf.py", line 54, in wrapped_view
    return view_func(*args, **kwargs)
  File "/Users/mightu/Desktop/jason_app/env/lib/python3.7/site-packages/django/views/generic/base.py", line 71, in view
    return self.dispatch(request, *args, **kwargs)
  File "/Users/mightu/Desktop/jason_app/env/lib/python3.7/site-packages/rest_framework/views.py", line 505, in dispatch
    response = self.handle_exception(exc)
  File "/Users/mightu/Desktop/jason_app/env/lib/python3.7/site-packages/rest_framework/views.py", line 465, in handle_exception
    self.raise_uncaught_exception(exc)
  File "/Users/mightu/Desktop/jason_app/env/lib/python3.7/site-packages/rest_framework/views.py", line 476, in raise_uncaught_exception
    raise exc
  File "/Users/mightu/Desktop/jason_app/env/lib/python3.7/site-packages/rest_framework/views.py", line 502, in dispatch
    response = handler(request, *args, **kwargs)
  File "/Users/mightu/Desktop/jason_app/env/lib/python3.7/site-packages/rest_framework/decorators.py", line 50, in handler
    return func(*args, **kwargs)
  File "/Users/mightu/Desktop/jason_app/users/views.py", line 38, in create_user
    data = json.loads(my_json)
  File "/usr/local/Cellar/python/3.7.4_1/Frameworks/Python.framework/Versions/3.7/lib/python3.7/json/__init__.py", line 348, in loads
    return _default_decoder.decode(s)
  File "/usr/local/Cellar/python/3.7.4_1/Frameworks/Python.framework/Versions/3.7/lib/python3.7/json/decoder.py", line 337, in decode
    obj, end = self.raw_decode(s, idx=_w(s, 0).end())
  File "/usr/local/Cellar/python/3.7.4_1/Frameworks/Python.framework/Versions/3.7/lib/python3.7/json/decoder.py", line 355, in raw_decode
    raise JSONDecodeError("Expecting value", s, err.value) from None
json.decoder.JSONDecodeError: Expecting value: line 1 column 1 (char 0)

我用这些SO帖子（1，2）把我带到了现在的位置（意识到我的输入是错误的！）。你知道吗

Answer 1

编辑：好的，我找到了解决办法。在Postman中，您可以作为form-data和raw发送数据。我当时用的是form-data，我猜这会毁掉一切，产生所有奇怪的-，和整数。我切换到raw，直接输入JSON格式，我的代码现在可以工作了！所有的一切！但我完全不明白为什么。我只是预感到我发送数据的方法根本不正确。有人能解释一下吗？你知道吗