what is the difference between data and params in requests?

Question

I am using python requests module, I send my params like this before:

requests.post(url=url, params=params)

but today, I find that I send my data like this, it fails, I change to this:

requests.post(url=url, data=params)

then it is ok, what is the difference between data and params ?

I observed that the request got a header X-Requested-With:XMLHttpRequest , is it because of this?

Answer 1

According to the requests documentation<\/a> :

• <\/li>
• <\/li><\/ul>

  To understand the difference between the two, see this answer<\/a> .

   Since they ended up there, they are viewable by anyone who has access to the URL, which is why you shouldn't use query strings for sensitive data like passwords.
   
                    
   I never denied such a thing in my original answer, but let's take a closer look.
   
                  
   
                   
  <\/li>
   
                   
  <\/li><\/ul>
  But that doesn't mean they are mutually exclusive.
  "
   
                  

Answer 2

First of all, there are two different methods<\/strong> :

• <\/li>
• <\/li><\/ul>

  Then, according to the docs<\/a> , you can choose between two parameters<\/strong> to send all the key\/value data:

  <\/li>
  • <\/li><\/ul>

    So, you have 4 choices to send your request:

    • He is actually talking about requests.post()<\/code> but using requests.get()<\/code> in his own example.
      "

Answer 3

Params are sent in (appended to) the URI ( http://www.answer.com/here?param1=1&param2=2 ) while data is sent in the request body . Usually sensitive data or that sent in large volumes is posted in the body because it's easier to secure and doesn't lead to huge URIs.