Include multiple headers in python requests

Question

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.

Solution 1

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.

Solution 2

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.

Comments

[guagay_wk]

Thanks. I tried that but I still get the same error.

[Sami Ahmed Siddiqui]

What error? Please post it in your original question.

[guagay_wk]

Thanks. I have posted on the question and corrected the syntax error as you pointed out.

[Sami Ahmed Siddiqui]

I've updated my answer to include more detail regarding your Access-Control-Allow-Headers error.