How to save Python Requests data sent to server?

[RedLeonard]

Hi,

Firstly, I am using Python 3.4, Flask and Python Anywhere server.

So, I am using Requests to send data to the server. This seems to work ok as a practice script but I'm having problems in saving the data to be able to observe it later. For now, just saving it in a basic text file would be fine.

Script (sent from Python Idle on laptop):

import requests
import json

response = requests.post('https://madmartin.pythonanywhere.com/postit', json={
    "language" : "German",
    "framework" : "Flask",
    
    "version_info" : {
        "python" : 3.4,
        "flask" : 0.12
    },
    "examples" : ["query", "form", "json"],
    "boolean_test" : True
})
response.status_code
   
if response.status_code == 200:
    print('Success- payload delivered!2020')
    print(response.content)
else:
    print('Got unexpected status code {}: {!r}'.format(response.status_code, response.headers))

---

Now, I'm not even sure it's possible to SAVE that data in the server as I've not added in any kind of password, token etc, but on sending that code, the headers are returned correctly (in Idle), as such:

Success- payload delivered!2020
b'\n           The framework value is: German\n           The language value is: Flask'

on the server (in flask_app.py) I have this code as the view function:

@app.route('/postit', methods=['GET', 'POST'])
def postit():

    req_data = request.get_json()
    language = req_data['language']
    framework = req_data['framework']
    python_version = req_data['version_info']['python'] #two keys are needed because of the nested object
    example = req_data['examples'][0] #an index is needed because of the array
    boolean_test = req_data['boolean_test']


    POST={}
    #args=sys.stdin.read()
    x = POST.get('framework')

    with open('/home/MadMartin/datapostfiles/EFL4.json', 'w') as f:
        f.write(str(x))
        f.close()


    return '''
           The framework value is: {}
           The language value is: {}'''.format(language, framework, x)

However, all this does is save an empty file(EFL4.json) - albeit with 'None' written in it.

So, is there any way to acutally save 'German' and 'Flask' on the server, or whatever is sent to it from Idle?

thanks in advance for any help offered