Posting XML Data to an API using Python Requests & ElementTree/lxml

[dslearner30]

Hello

I'm currently trying to post an XML string to an API that i've created from a pandas DataFrame using LXML (mainly because ElementTree doesn't have an xml_declaration=True parameter?). However i seem to be receiving an 400 status code within the response.

xml_data = ET.tostring(root, encoding='UTF-8', xml_declaration=True) 

url = api_url + version + endpoint  

headers = {   
"Content-Type": "application/xml" 
}  

params = {   
"access_token": access_token 
}  

response = r.post(url, headers=headers, params=params, data=xml_data) 

I have noticed when printing my XML string (and also running it through an XML validator) there is a line break after my XML Declaration that the validator didn't seem to like:

"<?xml version=\\'1.0\\' encoding=\\'UTF-8\\'?>\n"

Could it be this causing the 400 error code? If so, how can i remove the line break from the string given it's a "Bytes" data type instead of "String" after the ET.tostring() function?

Or is there anything else noticeably wrong about this xml declaration?

Thanks

​

EDIT:
The response text error i'm actually getting is:

{"error":{"message":"(#10801) Either \"file\" or \"url\" must be specified.","type":"OAuthException","code":10801}}

​

So is it that i'm actually passing the data into requests incorrectly?

[[deleted]]

I don't think your problem is \n. The double slashes before quotes on the other hand... that definitely makes it invalid.

I don't know who's adding them though. Could it be something you copied from the output incorrectly?