Learning Python Networking - Second Edition

Working with JSON

If we need to send JSON from a client to a server, the simplest way with the Requests module is using the json parameter, specifying a dictionary structure in key-value format.

The main advantage of using this parameter is that it is not necessary to specify 'Content-Type' in the request. In the json response, we can see that it automatically returns this field with the 'application/json' value:

>>> import requests >>> response = requests.post('http://httpbin.org/post', json={"key": "value"}) >>> response.status_code 200 >>> response.json() {'args': {}, 'data': '{"key": "value"}', 'files': {}, 'form': {}, 'headers': {'Accept': '*/*', 'Accept-Encoding': 'gzip, deflate', 'Connection': 'close', 'Content-Length': '16', 'Content-Type': ...