Call API Using Resource Owner Password Flow

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I figured out the problem.

I was supposed to use

resp = requests.post(
    url=url,
    headers=headers,
    data=data,
)

instead of

resp = requests.post(
    url=url,
    headers=headers,
    json=data,
)

BTW, I had to change the python library from http (the one used in the tutorial) to requests because that was erroring out for me with

Traceback (most recent call last):
  File "/home/gz/.pyenv/versions/3.9.7/lib/python3.9/runpy.py", line 197, in _run_module_as_main
    return _run_code(code, main_globals, None,
  File "/home/gz/.pyenv/versions/3.9.7/lib/python3.9/runpy.py", line 87, in _run_code
    exec(code, run_globals)
  File "/home/gz/.vscode/extensions/ms-python.python-2022.4.1/pythonFiles/lib/python/debugpy/__main__.py", line 45, in <module>
    cli.main()
  File "/home/gz/.vscode/extensions/ms-python.python-2022.4.1/pythonFiles/lib/python/debugpy/../debugpy/server/cli.py", line 444, in main
    run()
  File "/home/gz/.vscode/extensions/ms-python.python-2022.4.1/pythonFiles/lib/python/debugpy/../debugpy/server/cli.py", line 285, in run_file
    runpy.run_path(target_as_str, run_name=compat.force_str("__main__"))
  File "/home/gz/.pyenv/versions/3.9.7/lib/python3.9/runpy.py", line 268, in run_path
    return _run_module_code(code, init_globals, run_name,
  File "/home/gz/.pyenv/versions/3.9.7/lib/python3.9/runpy.py", line 97, in _run_module_code
    _run_code(code, mod_globals, init_globals,
  File "/home/gz/.pyenv/versions/3.9.7/lib/python3.9/runpy.py", line 87, in _run_code
    exec(code, run_globals)
  File "/data/repos/cybrik/frontback/src/backend/test.py", line 39, in <module>
    conn.request("POST", url, payload, headers)
  File "/home/gz/.pyenv/versions/3.9.7/lib/python3.9/http/client.py", line 1279, in request
    self._send_request(method, url, body, headers, encode_chunked)
  File "/home/gz/.pyenv/versions/3.9.7/lib/python3.9/http/client.py", line 1325, in _send_request
    self.endheaders(body, encode_chunked=encode_chunked)
  File "/home/gz/.pyenv/versions/3.9.7/lib/python3.9/http/client.py", line 1274, in endheaders
    self._send_output(message_body, encode_chunked=encode_chunked)
  File "/home/gz/.pyenv/versions/3.9.7/lib/python3.9/http/client.py", line 1034, in _send_output
    self.send(msg)
  File "/home/gz/.pyenv/versions/3.9.7/lib/python3.9/http/client.py", line 974, in send
    self.connect()
  File "/home/gz/.pyenv/versions/3.9.7/lib/python3.9/http/client.py", line 1441, in connect
    super().connect()
  File "/home/gz/.pyenv/versions/3.9.7/lib/python3.9/http/client.py", line 945, in connect
    self.sock = self._create_connection(
  File "/home/gz/.pyenv/versions/3.9.7/lib/python3.9/socket.py", line 823, in create_connection
    for res in getaddrinfo(host, port, 0, SOCK_STREAM):
  File "/home/gz/.pyenv/versions/3.9.7/lib/python3.9/socket.py", line 954, in getaddrinfo
    for res in _socket.getaddrinfo(host, port, family, type, proto, flags):
socket.gaierror: [Errno -2] Name or service not known

I suspect that this is a linux-specific error

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