TypeError when connecting via insecure GRPC and with API key

[ArthurMelin]

Hello,
The grpc library throws the following exception when attempting to connect via insecure GRPC and with an API key:

Python 3.11.3 (main, Apr  5 2023, 15:52:25) [GCC 12.2.1 20230201] on linux
Type "help", "copyright", "credits" or "license" for more information.
>>> from qdrant_client import QdrantClient
>>> client = QdrantClient(host="qdrant", https=False, prefer_grpc=True, api_key="foobar")
/usr/local/lib/python3.11/site-packages/qdrant_client/qdrant_remote.py:104: UserWarning: Api key is used with unsecure connection.
  warnings.warn("Api key is used with unsecure connection.")
>>> client.get_collections()
Traceback (most recent call last):
  File "<stdin>", line 1, in <module>
  File "/usr/local/lib/python3.11/site-packages/qdrant_client/qdrant_client.py", line 1130, in get_collections
    return self._client.get_collections(**kwargs)
           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/usr/local/lib/python3.11/site-packages/qdrant_client/qdrant_remote.py", line 1489, in get_collections
    response = self.grpc_collections.List(
               ^^^^^^^^^^^^^^^^^^^^^
  File "/usr/local/lib/python3.11/site-packages/qdrant_client/qdrant_remote.py", line 217, in grpc_collections
    self._init_grpc_collections_client()
  File "/usr/local/lib/python3.11/site-packages/qdrant_client/qdrant_remote.py", line 159, in _init_grpc_collections_client
    self._grpc_channel = get_channel(
                         ^^^^^^^^^^^^
  File "/usr/local/lib/python3.11/site-packages/qdrant_client/connection.py", line 214, in get_channel
    channel = grpc.insecure_channel(f"{host}:{port}", metadata, options)
              ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/usr/local/lib/python3.11/site-packages/grpc/__init__.py", line 1964, in insecure_channel
    return _channel.Channel(target, () if options is None else options, None,
           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/usr/local/lib/python3.11/site-packages/grpc/_channel.py", line 1649, in __init__
    _common.encode(target), _augment_options(core_options, compression),
                            ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/usr/local/lib/python3.11/site-packages/grpc/_channel.py", line 1605, in _augment_options
    compression_option = _compression.create_channel_option(compression)
                         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/usr/local/lib/python3.11/site-packages/grpc/_compression.py", line 46, in create_channel_option
    int(compression)),) if compression else ()
    ^^^^^^^^^^^^^^^^
TypeError: int() argument must be a string, a bytes-like object or a real number, not 'list'

Looks like the problem comes from here:

qdrant-client/qdrant_client/connection.py

Line 214 in b05a7a6

channel = grpc.insecure_channel(f"{host}:{port}", metadata, options)

The metadata arg shouldn't be here, after removing it the problem was resolved.

Let me know if you want me to make a PR!

[longma8520]

Can it be fixed ASAP?

[joein]

should be fixed with #216, should be available in the upcoming release