Fix Python – Difference between data and json parameters in python requests package

Question 1

What is the difference between the data and json parameters in the python Requests package?

Does this code:

import requests
import json
d = {'a': 1}
response = requests.post(url, data=json.dumps(d))

Note that we convert the dict to JSON here ☝️ !

Do anything different than:

import requests
import json
d = {'a': 1}
response = requests.post(url, json=d)

If so, what? Does the latter automatically set the content-type in the header to application/json?

Question 2

To answer my own question, it appears my two examples above do the same thing and that using the json parameter does indeed set the content-type in the headers to application/json. In my first example above using the data parameter, the content-type in the headers would need to be set manually.

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