Django Rest框架：空的request.data [英] Django Rest Framework: empty request.data

问题描述

我有以下DRF视图代码：

I have the following code for a view of DRF:

from rest_framework import viewsets

class MyViewSet(viewsets.ViewSet):

    def update(self, request, pk = None):
        print pk
        print request.data

我通过 python请求通过以下方式调用URL：

I call the URL via python-requests in the following way:

import requests
payload = {"foo":"bar"}
headers = {'Content-type': 'application/json'}
r = requests.put("https://.../myPk", data= payload, headers=headers)

但是当从服务器接收到请求时，request.data为空。这里有输出：

but when the request is received from the server, request.data is empty. Here there is the output:

myPk
<QueryDict: {}>

如何解决这个问题？

推荐答案

您需要将有效负载作为序列化的 json 对象发送。 / p>

You need to send the payload as a serialized json object.

import json
import requests
payload = {"foo":"bar"}
headers = {'Content-type': 'application/json'}
r = requests.put("https://.../myPk/", data=json.dumps(payload), headers=headers)

否则会发生什么是DRF实际上会抱怨：

Otherwise what happens is that DRF will actually complain about:

*** ParseError: JSON parse error - No JSON object could be decoded

您将通过调试视图来看到该错误消息（例如，使用 pdb 或 ipdb ）或打印如下变量：

You would see that error message by debugging the view (e.g. with pdb or ipdb) or printing the variable like this:

def update(self, request, pk = None):
    print pk
    print str(request.data)

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