使用请求的Python HTTP请求二进制数据。

[英]Python HTTP Request Binary Data using Requests


The following code only works in curl. It would be nice if you could tell me why it isnt working in Python using Requests

下面的代码只适用于curl。如果您能告诉我为什么在Python中不使用请求,那就太好了。

curl 'http://cdcnepal.com/Modules/HOmeMoviesLists/WebService2.asmx/GetShowsByDate' \
 -H 'Content-Type: application/json; charset=UTF-8' \
 -d '{"portalId":"1","showDate":"26/05/2014","flag":0,"size":9}'

However in Python with the following code

但是在Python中有以下代码。

import requests
import json
url = """http://cdcnepal.com/Modules/HOmeMoviesLists/WebService2.asmx/GetShowsByDate"""
headers = {"content-type":["application/json", "charset=UTF-8"]}
payload = {"portalId":"1","showDate":"26/05/2014","flag":0,"size":9}
r = requests.get(url, headers=headers, data=payload)
print r.text

Originally the curl request had other content, below, however I realised I could remove several. I'm not sure that is causing the error because the curl request is working. I'm not getting the same response from both the code.

最初curl请求有其他内容,但我意识到我可以删除几个。我不确定是否导致了错误,因为curl请求正在工作。我不会从代码中得到相同的响应。

This might be useful. A Curl Requests extracted from Chrome Dev Tools

这可能是有用的。从Chrome Dev工具中提取的Curl请求。

curl 'http://cdcnepal.com/Modules/HOmeMoviesLists/WebService2.asmx/GetShowsByDate'
 -H 'Cookie: OriginalReferrer=https://www.google.com/;
     OriginalURL=http://cdcnepal.com/;
     ASP.NET_SessionId=i5lbnql5hpp0wm1ywyqbywtj;
     VisitCount=4' 
 -H 'Origin: http://cdcnepal.com' 
 -H 'Accept-Encoding: gzip,deflate,sdch' 
 -H 'Accept-Language: en-US,en;q=0.8,hi;q=0.6' 
 -H 'User-Agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10_9_3)
     AppleWebKit/537.36 (KHTML, like Gecko) Chrome/35.0.1916.114 Safari/537.36' 
 -H 'Content-Type: application/json; charset=UTF-8' 
 -H 'Accept: application/json, text/javascript, */*; q=0.01' 
 -H 'Referer:http://cdcnepal.com/Home.aspx' 
 -H 'X-Requested-With: XMLHttpRequest' -H 'Connection: keep-alive' 
 -H 'DNT: 1' 
 --data-binary '{"portalId":"1","showDate":"27/05/2014","flag":0,"size":9}' --compressed

1 个解决方案

#1


7  

The curl -d switch sends a POST request, but you are using requests.get() instead, sending a GET request (whose body is ignored).

curl -d开关发送一个POST请求,但是您正在使用请求。GET()代替,发送GET请求(它的主体被忽略)。

Make it a POST instead, by using request.post():

使用request.post():

import requests
import json

url = "http://cdcnepal.com/Modules/HOmeMoviesLists/WebService2.asmx/GetShowsByDate"
headers = {"content-type": "application/json; charset=UTF-8"}
payload = {"portalId":"1","showDate":"26/05/2014","flag":0,"size":9}
r = requests.post(url, headers=headers, data=json.dumps(payload))
print r.text

You also need to:

您还需要:

  1. not use a list for the content-type header, there is no support for paramaters being specified separately.
  2. 不使用内容类型头的列表,不支持单独指定的参数。
  3. Encode your JSON data to a JSON string; requests doesn't do this for you. Instead, a dictionary passed to data is encoded as application/x-www-form-urlencoded data instead.
  4. 将JSON数据编码为JSON字符串;请求不会为你做这些。相反,传递给数据的字典被编码为应用程序/x-www-form-urlencode数据。

You can compare the curl command with requests more easily using http://httpbin.org/post:

您可以使用http://httpbin.org/post将curl命令与请求进行比较。

$ curl http://httpbin.org/post \
>  -H 'Content-Type: application/json; charset=UTF-8' \
>  -d '{"portalId":"1","showDate":"26/05/2014","flag":0,"size":9}'

{
  "args": {},
  "data": "{\"portalId\":\"1\",\"showDate\":\"26/05/2014\",\"flag\":0,\"size\":9}",
  "files": {},
  "form": {},
  "headers": {
    "Accept": "*/*",
    "Connection": "close",
    "Content-Length": "58",
    "Content-Type": "application/json; charset=UTF-8",
    "Host": "httpbin.org",
    "User-Agent": "curl/7.30.0",
    "X-Request-Id": "78d7bb7d-e29b-482b-908a-48d2395a050f"
  },
  "json": {
    "flag": 0,
    "portalId": "1",
    "showDate": "26/05/2014",
    "size": 9
  },
  "origin": "84.92.98.170",
  "url": "http://httpbin.org/post"
}

and

>>> import requests
>>> import json
>>> from pprint import pprint
>>> url = 'http://httpbin.org/post'
>>> headers = {"content-type":"application/json; charset=UTF-8"}
>>> payload = {"portalId":"1","showDate":"26/05/2014","flag":0,"size":9}
>>> r = requests.post(url, headers=headers, data=json.dumps(payload))
>>> pprint(r.json())
{u'args': {},
 u'data': u'{"portalId": "1", "flag": 0, "size": 9, "showDate": "26/05/2014"}',
 u'files': {},
 u'form': {},
 u'headers': {u'Accept': u'*/*',
              u'Accept-Encoding': u'gzip, deflate, compress',
              u'Connection': u'close',
              u'Content-Length': u'65',
              u'Content-Type': u'application/json; charset=UTF-8',
              u'Host': u'httpbin.org',
              u'User-Agent': u'python-requests/2.2.1 CPython/2.7.6 Darwin/13.1.0',
              u'X-Request-Id': u'06d6b542-c279-4898-8701-2c0d502aa36e'},
 u'json': {u'flag': 0,
           u'portalId': u'1',
           u'showDate': u'26/05/2014',
           u'size': 9},
 u'origin': u'84.92.98.170',
 u'url': u'http://httpbin.org/post'}

Both cases show the same json dictionary being returned.

这两种情况都显示返回的是相同的json字典。

If you are using requests version 2.4.2 or newer, you can also leave the JSON encoding to the library; it'll set the correct Content-Type header too, if you pass in the data to send as the json keyword argument:

如果您使用的是请求版本2.4.2或更新,您也可以将JSON编码留给库;它还将设置正确的内容类型标题,如果您传入数据以发送json关键字参数:

import requests

url = "http://cdcnepal.com/Modules/HOmeMoviesLists/WebService2.asmx/GetShowsByDate"
payload = {"portalId":"1","showDate":"26/05/2014","flag":0,"size":9}
r = requests.post(url, json=payload)
print r.text

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