CODEWITHSUNDEEP
pythonpython-2.7curlpython-requests
guagay_wk
guagay_wk

Reputation: 28088

Include multiple headers in python requests

I have this HTTPS call in curl below;

header1="projectName: zhikovapp"
header2="Authorization: Bearer HZCdsf="
bl_url="https://BlazerNpymh.com/api/documents?pdfDate=$today"

curl -s -k -H "$header1" -H "$header2" "$bl_url"

I would like to write an equivalent python call using requests module.

header ={
            "projectName": "zhikovapp",
            "Authorization": "Bearer HZCdsf="
        }
response = requests.get(bl_url, headers = header)

However, the request was not valid. What is wrong?

The contents of the returned response is like this;

<Response [400]>
_content = '{"Message":"The request is invalid."}'
headers = {'Content-Length': '37', 'Access-Control-Allow-Headers': 'projectname, authorization, Content-Type', 'Expires': '-1', 'cacheControlHeader': 'max-age=604800', 'Connection': 'keep-alive', 'Pragma': 'no-cache', 'Cache-Control': 'no-cache', 'Date': 'Sat, 15 Oct 2016 02:41:13 GMT', 'Access-Control-Allow-Origin': '*', 'Access-Control-Allow-Methods': 'GET, POST, PUT, DELETE, OPTIONS', 'Content-Type': 'application/json; charset=utf-8'}
reason = 'Bad Request'

I am using python 2.7

EDIT: I corrected some syntex errors after Soviut pointed them out.

Upvotes: 14

Views: 55785

Answers (2)

saaj
saaj

Reputation: 25283

  1. If you have $today defined in the shell you make curl call from, and you don't substitute it in the requests' call URL, then it's a likely reason for the 400 Bad Request.
  2. Access-Control-* and other CORS headers have nothing to do with non-browser clients. Also HTTP headers are generally case insensitive.

  3. Following @furas's advice here's the output:

    $ curl -H "projectName: zhikovapp" -H "Authorization: Bearer HZCdsf=" \
    http://httpbin.org/get

{
   "args": {}, 
   "headers": {
      "Accept": "*/*", 
      "Authorization": "Bearer HZCdsf=", 
      "Host": "httpbin.org", 
      "Projectname": "zhikovapp", 
      "User-Agent": "curl/7.35.0"
   }, 
   "origin": "1.2.3.4", 
   "url": "http://httpbin.org/get"
}

    And the same request with requests:

    import requests
res = requests.get('http://httpbin.org/get', headers={
  "projectName"   : "zhikovapp",
  "Authorization" : "Bearer HZCdsf="
})
print(res.json())

{
  'args': {},
  'headers': {
     'Accept': '*/*',
     'Accept-Encoding': 'gzip, deflate, compress',
     'Authorization': 'Bearer HZCdsf=',
     'Host': 'httpbin.org',
     'Projectname': 'zhikovapp',
     'User-Agent': 'python-requests/2.2.1 CPython/3.4.3 '
       'Linux/3.16.0-38-generic'
   },
   'origin': '1.2.3.4',
   'url': 'http://httpbin.org/get'
}

    As you can see the only difference is User-Agent header. It's unlikely the cause but you can easily set it in headers to the value you like.

Upvotes: 2

Soviut
Soviut

Reputation: 91655

In request.get() the headers argument should be defined as a dictionary, a set of key/value pairs. You've defined a set (a unique list) of strings instead.

You should declare your headers like this:

headers = {
    "projectName": "zhikovapp",
    "Authorization": "Bearer HZCdsf="
}
response = requests.get(bl_url, headers=headers)

Note the "key": "value" format of each line inside the dictionary.

Edit: Your Access-Control-Allow-Headers say they'll accept projectname and authorization in lower case. You've named your header projectName and Authorization with upper case letters in them. If they don't match, they'll be rejected.

Upvotes: 26

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